Difference between revisions of "EBC Exercise 21a Boot Sequence"

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(Added sudo to chown command because it kept saying permission denied whenever we would run it without sudo)
m (Both: Switched from root to debian)
 
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[[File:Bootloader.jpg|200px|right]]
 
[[File:Bootloader.jpg|200px|right]]
 
You need to attach a 3.3V FTDI cable to see the boot sequence.
 
You need to attach a 3.3V FTDI cable to see the boot sequence.
[[File:FTDIcable.jpg|200px|thumb|FDTI cable]]
+
[[File:FTDIcable.jpg|200px|thumb|FTDI cable]]
[[File:FDTIconnector.jpg|200px|thumb|FDTI connector]]
+
 
[[File:SerialDebug.png|200px|thumb|FDTI connector]]  
+
=== BeagleBone Black ===
 +
[[File:FDTIconnector.jpg|200px|FTDI connector]]
 +
[[File:SerialDebug.png|200px|FTDI connector]]  
 +
 
 
Look for the black lead which is marked with a little triangle. This connects to the pin with the white dot next to it.
 
Look for the black lead which is marked with a little triangle. This connects to the pin with the white dot next to it.
  
Boot up your bone and connect to the serial port using the '''screen''' command. Hit return and log inYou may need to make yourself owner of /dev/ttyUSB0 before running screen. Use your name instead of mine.
+
=== BeagleBone Blue ===
 +
[[File:FDTItoJST.png|200px||FTDI to JST cable]]
 +
[[File:BlueUT0JSTconnecter.png|200px|Blue UT0 connector]]
 +
 
 +
On the FDTI connector look for the black lead which is marked with a little triangleThis connects to black lead on the JST cable.
 +
Then plug the JST cable into UT0 on the Blue.
  
host$ '''sudo chown ''yoder:yoder'' /dev/ttyUSB0'''
+
=== Both ===
 +
Boot up your bone and connect to the serial port using the '''screen''' command. Hit return and log in.  You may need to give yourself access to /dev/ttyUSB0 before running screen.
  
 +
host$ '''ls -ls /dev/ttyUSB0 '''
 +
0 crw-rw---- 1 root dialout 188, 0 Sep 22 09:36 /dev/ttyUSB0
 +
host$ '''sudo adduser $USER dialout'''
 
  host$ '''screen /dev/ttyUSB0 115200'''
 
  host$ '''screen /dev/ttyUSB0 115200'''
.---O---.                                         
 
|      |                  .-.          o o       
 
|  |  |-----.-----.-----.| |  .----..-----.-----.
 
|      |    | __  |  ---'| '--.|  .-'|    |    |
 
|  |  |  |  |    |---  ||  --'|  |  |  '  | | | |
 
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
 
                -'  |
 
                '---'
 
 
   
 
   
  The Angstrom Distribution yoder-black-bone ttyO0
+
  Debian GNU/Linux 8 yoder-debian-bone ttyS0
 +
BeagleBoard.org Debian Image 2016-08-28
 +
Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
 +
default username:password is [debian:temppwd]
 +
The IP Address for usb0 is: 192.168.7.2
 
   
 
   
  Angstrom v2012.12 - Kernel 3.8.13-bone27
+
  debian-bone login: '''debian'''
+
  debian@beaglebone:~#  
yoder-black-bone login: '''root'''
 
  root@beaglebone:~#  
 
  
 
Run the following on your host to learn how to log data with '''screen'''
 
Run the following on your host to learn how to log data with '''screen'''
Line 41: Line 47:
  
 
Now shutdown and be ready to hit return when you get the u-boot prompt.
 
Now shutdown and be ready to hit return when you get the u-boot prompt.
  beagle$ '''shutdown -r now'''
+
  bone$ '''reboot'''
Sending SIGTERM to remaining processes...
+
  [   94.382034] reboot: Restarting system
Sending SIGKILL to remaining processes...
+
 
Unmounting file systems.
+
Only one message when the kernel shuts down in quiet mode.
Unmounted /dev/mqueue.
 
Unmounted /sys/kernel/debug.
 
Disabling swaps.
 
Detaching loop devices.
 
Detaching DM devices.
 
  [ 599.018005] Restarting system.
 
These first messages are from the kernel shutting down.
 
  
 
== U-Boot Starting ==
 
== U-Boot Starting ==
The following messages are the boot sequence.
+
  U-Boot SPL 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00)
  U-Boot SPL 2011.09-00053-gb423c52 (Aug 10 2012 - 11:26:55)
+
  Trying to boot from MMC
  Texas Instruments Revision detection unimplemented
+
  bad magic
No daughter card present
+
  U-Boot 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00 -0500), Build: jenkins-github_Bootloader-Builder-394
No AC power, disabling frequency switch
+
      Watchdog enabled
OMAP SD/MMC: 0
 
reading u-boot.img
 
reading u-boot.img
 
 
   
 
  U-Boot 2011.09-00053-gb423c52 (Aug 10 2012 - 11:26:55)
 
 
 
  I2C:  ready
 
  I2C:  ready
  DRAM:  256 MiB
+
  DRAM:  512 MiB
  WARNING: Caches not enabled
+
  Reset Source: Global warm SW reset has occurred.
  No daughter card present
+
  Reset Source: Power-on reset has occurred.
NAND: HW ECC Hamming Code selected
 
No NAND device found!!!
 
0 MiB
 
 
  MMC:  OMAP SD/MMC: 0, OMAP SD/MMC: 1
 
  MMC:  OMAP SD/MMC: 0, OMAP SD/MMC: 1
  *** Warning - readenv() failed, using default environment
+
  Using default environment
 +
Net:  <ethaddr> not set. Validating first E-fuse MAC
 +
cpsw, usb_ether
 
   
 
   
  Net:  cpsw
+
  Press SPACE to abort autoboot in 2 seconds
Hit any key to stop autoboot:  0
+
  =>
  U-Boot#
 
  
 
== U-Boot help ==
 
== U-Boot help ==
 
You are now in the u-boot boot loader. Try '''help'''
 
You are now in the u-boot boot loader. Try '''help'''
  U-Boot# '''help'''
+
  => help
 
  ?      - alias for 'help'
 
  ?      - alias for 'help'
 
  askenv  - get environment variables from stdin
 
  askenv  - get environment variables from stdin
Line 89: Line 79:
 
  boot    - boot default, i.e., run 'bootcmd'
 
  boot    - boot default, i.e., run 'bootcmd'
 
  bootd  - boot default, i.e., run 'bootcmd'
 
  bootd  - boot default, i.e., run 'bootcmd'
 +
bootelf - Boot from an ELF image in memory
 
  bootm  - boot application image from memory
 
  bootm  - boot application image from memory
 
  bootp  - boot image via network using BOOTP/TFTP protocol
 
  bootp  - boot image via network using BOOTP/TFTP protocol
 +
bootvx  - Boot vxWorks from an ELF image
 +
bootz  - boot Linux zImage image from memory
 
  cmp    - memory compare
 
  cmp    - memory compare
 
  coninfo - print console devices and information
 
  coninfo - print console devices and information
 
  cp      - memory copy
 
  cp      - memory copy
 
  crc32  - checksum calculation
 
  crc32  - checksum calculation
  dcache  - enable or disable data cache
+
  dfu    - Device Firmware Upgrade
 
  dhcp    - boot image via network using DHCP/TFTP protocol
 
  dhcp    - boot image via network using DHCP/TFTP protocol
 +
dm      - Driver model low level access
 
  echo    - echo args to console
 
  echo    - echo args to console
 
  editenv - edit environment variable
 
  editenv - edit environment variable
 +
eeprom  - EEPROM sub-system
 
  env    - environment handling commands
 
  env    - environment handling commands
 
  exit    - exit script
 
  exit    - exit script
 
  ext2load- load binary file from a Ext2 filesystem
 
  ext2load- load binary file from a Ext2 filesystem
 
  ext2ls  - list files in a directory (default /)
 
  ext2ls  - list files in a directory (default /)
  ext4load- load binary file from a Ext2 filesystem
+
  ext4load- load binary file from a Ext4 filesystem
 
  ext4ls  - list files in a directory (default /)
 
  ext4ls  - list files in a directory (default /)
 +
ext4size- determine a file's size
 +
ext4write- create a file in the root directory
 
  false  - do nothing, unsuccessfully
 
  false  - do nothing, unsuccessfully
 +
fastboot- use USB Fastboot protocol
 
  fatinfo - print information about filesystem
 
  fatinfo - print information about filesystem
 
  fatload - load binary file from a dos filesystem
 
  fatload - load binary file from a dos filesystem
 
  fatls  - list files in a directory (default /)
 
  fatls  - list files in a directory (default /)
 +
fatsize - determine a file's size
 +
fatwrite- write file into a dos filesystem
 +
fdt    - flattened device tree utility commands
 +
fstype  - Look up a filesystem type
 
  go      - start application at address 'addr'
 
  go      - start application at address 'addr'
 +
gpio    - query and control gpio pins
 +
gpt    - GUID Partition Table
 
  help    - print command description/usage
 
  help    - print command description/usage
 
  i2c    - I2C sub-system
 
  i2c    - I2C sub-system
icache  - enable or disable instruction cache
 
 
  iminfo  - print header information for application image
 
  iminfo  - print header information for application image
 
  imxtract- extract a part of a multi-image
 
  imxtract- extract a part of a multi-image
 
  itest  - return true/false on integer compare
 
  itest  - return true/false on integer compare
 +
load    - load binary file from a filesystem
 
  loadb  - load binary file over serial line (kermit mode)
 
  loadb  - load binary file over serial line (kermit mode)
 
  loads  - load S-Record file over serial line
 
  loads  - load S-Record file over serial line
 +
loadx  - load binary file over serial line (xmodem mode)
 
  loady  - load binary file over serial line (ymodem mode)
 
  loady  - load binary file over serial line (ymodem mode)
 
  loop    - infinite loop on address range
 
  loop    - infinite loop on address range
 +
ls      - list files in a directory (default /)
 
  md      - memory display
 
  md      - memory display
 +
mdio    - MDIO utility commands
 +
mii    - MII utility commands
 
  mm      - memory modify (auto-incrementing address)
 
  mm      - memory modify (auto-incrementing address)
 
  mmc    - MMC sub system
 
  mmc    - MMC sub system
 
  mmcinfo - display MMC info
 
  mmcinfo - display MMC info
mtest  - simple RAM read/write test
 
 
  mw      - memory write (fill)
 
  mw      - memory write (fill)
nand    - NAND sub-system
 
nandecc - Switch NAND ECC calculation algorithm b/w hardware and software
 
nboot  - boot from NAND device
 
 
  nfs    - boot image via network using NFS protocol
 
  nfs    - boot image via network using NFS protocol
 
  nm      - memory modify (constant address)
 
  nm      - memory modify (constant address)
 +
part    - disk partition related commands
 
  ping    - send ICMP ECHO_REQUEST to network host
 
  ping    - send ICMP ECHO_REQUEST to network host
 
  printenv- print environment variables
 
  printenv- print environment variables
 +
pxe    - commands to get and boot from pxe files
 
  reset  - Perform RESET of the CPU
 
  reset  - Perform RESET of the CPU
 
  run    - run commands in an environment variable
 
  run    - run commands in an environment variable
  saveenv - save environment variables to persistent storage
+
  save    - save file to a filesystem
 
  setenv  - set environment variables
 
  setenv  - set environment variables
 
  sf      - SPI flash sub-system
 
  sf      - SPI flash sub-system
 
  showvar - print local hushshell variables
 
  showvar - print local hushshell variables
 +
size    - determine a file's size
 
  sleep  - delay execution for some time
 
  sleep  - delay execution for some time
 
  source  - run script from memory
 
  source  - run script from memory
 +
spl    - SPL configuration
 +
sspi    - SPI utility command
 +
sysboot - command to get and boot from syslinux files
 
  test    - minimal test like /bin/sh
 
  test    - minimal test like /bin/sh
 
  tftpboot- boot image via network using TFTP protocol
 
  tftpboot- boot image via network using TFTP protocol
 
  true    - do nothing, successfully
 
  true    - do nothing, successfully
 +
usb    - USB sub-system
 +
usbboot - boot from USB device
 
  version - print monitor, compiler and linker version
 
  version - print monitor, compiler and linker version
  
Line 152: Line 164:
 
  boot - boot default, i.e., run 'bootcmd'
 
  boot - boot default, i.e., run 'bootcmd'
 
  U-boot# '''print bootcmd'''
 
  U-boot# '''print bootcmd'''
  bootcmd=if mmc rescan; then echo SD/MMC found on device ${mmc_dev};
+
  bootcmd=run findfdt; run distro_bootcmd
if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;fi;
 
if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;
 
if run mmc_load_uimage_ext4; then run mmc_args;bootm ${kloadaddr};fi;fi;run nand_boot;
 
  
Figure out what's happening above by 'pretty printing' '''bootcmd'''.  That is, properly format the code so you can follow the flow. Submit this as part of this assignment's memo.
+
Figure out what's happening above by printing '''findfdt''' and '''distro_bootcmd'''
if mmc rescan; then
 
  echo SD/MMC found on device ${mmc_dev};  ''Find out what mmc_dev is and fill it in''
 
  if run loadbootenv; then
 
    echo Loaded environment from ${bootenv};
 
    run importbootenv;
 
  fi;
 
... and so on.
 
  
 
== U-Boot print ==
 
== U-Boot print ==
 
It might be helpful to print the contents of all the variables and save it for future reference.
 
It might be helpful to print the contents of all the variables and save it for future reference.
  U-boot# print
+
  => '''print'''
  autoload=yes
+
arch=arm
 +
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=PARTUUID=${uuid} ro rootfstype=${mmcrootfstype} ${cmdline}
 +
args_mmc_old=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=${oldroot} ro rootfstype=${mmcrootfstype} ${cmdline}
 +
args_mmc_uuid=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=UUID=${uuid} ro rootfstype=${mmcrootfstype} ${cmdline}
 +
args_netinstall=setenv bootargs ${netinstall_bootargs} ${optargs} ${cape_disable} ${cape_enable} root=/dev/ram rw ${cmdline}
 +
args_uenv_root=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=${uenv_root} ro rootfstype=${mmcrootfstype} ${cmdline}
 +
  autoconf=off
 
  baudrate=115200
 
  baudrate=115200
  bootargs_defaults=setenv bootargs console=${console} ${optargs}
+
  board=am335x
bootcmd=if mmc rescan; then echo SD/MMC found on device ${mmc_dev};if run loadbootenv; then echo Loaded
+
board_name=A335BNLT
  environment from ${bootenv};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run  
+
board_rev=0A5C
  uenvcmd;fi;if run mmc_load_uimage_ext4; then run mmc_args;bootm ${kloadaddr};fi;fi;run nand_boot;
+
boot=${interface} dev ${mmcdev}; if ${interface} rescan; then gpio set 54;setenv bootpart ${mmcdev}:1; if test -e ${interface} ${bootpart} /etc/fstab; then setenv mmcpart 1;fi; echo Checking for: /uEnv.txt ...;if test -e ${interface} ${bootpart} /uEnv.txt; then if run loadbootenv; then gpio set 55;echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n ${cape}; then if test -e ${interface} ${bootpart} ${fdtdir}/${fdtbase}-${cape}.dtb; then setenv fdtfile ${fdtbase}-${cape}.dtb; fi; echo using: $fdtfile...; fi; echo Checking if uenvcmd is set ...;if test -n ${uenvcmd}; then gpio set 56; echo Running uenvcmd ...;run uenvcmd;fi;echo Checking if client_ip is set ...;if test -n ${client_ip}; then if test -n ${dtb}; then setenv fdtfile ${dtb};echo using ${fdtfile} ...;fi;gpio set 56; if test -n ${uname_r}; then echo Running nfsboot_uname_r ...;run nfsboot_uname_r;fi;echo Running nfsboot ...;run nfsboot;fi;fi; echo Checking for: /${script} ...;if test -e ${interface} ${bootpart} /${script}; then gpio set 55;setenv scriptfile ${script};run loadbootscript;echo Loaded script from ${scriptfile};gpio set 56; run bootscript;fi; echo Checking for: /boot/${script} ...;if test -e ${interface} ${bootpart} /boot/${script}; then gpio set 55;setenv scriptfile /boot/${script};run loadbootscript;echo Loaded script from ${scriptfile};gpio set 56; run bootscript;fi; echo Checking for: /boot/uEnv.txt ...;for i in 1 2 3 4 5 6 7 ; do setenv mmcpart ${i};setenv bootpart ${mmcdev}:${mmcpart};if test -e ${interface} ${bootpart} /boot/uEnv.txt; then gpio set 55;load ${interface} ${bootpart} ${loadaddr} /boot/uEnv.txt;env import -t ${loadaddr} ${filesize};echo Loaded environment from /boot/uEnv.txt;if test -n ${cape}; then echo debug: [cape=${cape}] ... ;setenv fdtfile ${fdtbase}-${cape}.dtb; echo Using: dtb=${fdtfile} ...;fi; if test -n ${dtb}; then echo debug: [dtb=${dtb}] ... ;setenv fdtfile ${dtb};echo Using: dtb=${fdtfile} ...;fi;echo Checking if uname_r is set in /boot/uEnv.txt...;if test -n ${uname_r}; then gpio set 56; setenv oldroot /dev/mmcblk${mmcdev}p${mmcpart};echo Running uname_boot ...;run uname_boot;fi;fi;done;fi;
  bootdelay=1
+
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
 +
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}extlinux/extlinux.conf
 +
boot_fdt=try
 +
boot_prefixes=/ /boot/
 +
boot_script_dhcp=boot.scr.uimg
 +
boot_scripts=boot.scr.uimg boot.scr
 +
boot_targets=mmc0 legacy_mmc0 mmc1 legacy_mmc1 nand0 pxe dhcp
 +
bootcmd=run findfdt; run distro_bootcmd
 +
bootcmd_dhcp=if dhcp ${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi
 +
bootcmd_legacy_mmc0=gpio clear 56; gpio clear 55; gpio clear 54; gpio set 53; setenv interface mmc; setenv mmcdev 0; setenv bootpart 0:1 ; run boot
 +
bootcmd_legacy_mmc1=gpio clear 56; gpio clear 55; gpio clear 54; gpio set 53; setenv interface mmc; setenv mmcdev 1; setenv bootpart 1:1 ; run boot
 +
bootcmd_mmc0=setenv devnum 0; run mmc_boot
 +
bootcmd_mmc1=setenv devnum 1; run mmc_boot
 +
bootcmd_nand=run nandboot
 +
bootcmd_pxe=dhcp; if pxe get; then pxe boot; fi
 +
bootcount=8
 +
  bootdelay=2
 +
bootdir=/boot
 
  bootenv=uEnv.txt
 
  bootenv=uEnv.txt
  bootfile=uImage
+
  bootfile=zImage
 +
bootm_size=0x10000000
 +
bootpart=0:2
 +
bootscript=echo Running bootscript from mmc${bootpart} ...; source ${loadaddr}
 
  console=ttyO0,115200n8
 
  console=ttyO0,115200n8
 +
cpu=armv7
 +
device=eth0
 +
dfu_alt_info_emmc=rawemmc raw 0 3751936
 +
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;MLO.raw raw 0x100 0x100;u-boot.img.raw raw 0x300 0x400;spl-os-args.raw raw 0x80 0x80;spl-os-image.raw raw 0x900 0x2000;spl-os-args fat 0 1;spl-os-image fat 0 1;u-boot.img fat 0 1;uEnv.txt fat 0 1
 +
dfu_alt_info_ram=kernel ram 0x80200000 0xD80000;fdt ram 0x80F80000 0x80000;ramdisk ram 0x81000000 0x4000000
 +
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
 +
eth1addr=c8:a0:30:b7:f9:71
 
  ethact=cpsw
 
  ethact=cpsw
  ethaddr=d4:94:a1:39:ed:0c
+
  ethaddr=c8:a0:30:b7:f9:6f
  importbootenv=echo Importing environment from mmc ...; env import -t $loadaddr $filesize
+
failumsboot=echo; echo FAILSAFE: U-Boot UMS (USB Mass Storage) enabled, media now available over the usb slave port ...; ums 0 ${interface} 1;
  ip_method=none
+
fdt_addr_r=0x88000000
  kloadaddr=0x80007fc0
+
fdtaddr=0x88000000
 +
fdtfile=undefined
 +
findfdt=if test $board_name = A335BONE; then setenv fdtfile am335x-bone.dtb; setenv fdtbase am335x-bone; fi; if test $board_name = A335BNLT; then if test $board_rev = BLA0; then setenv fdtfile am335x-boneblue.dtb; setenv fdtbase am335x-boneblue; elif test $board_rev = BBG1; then setenv fdtfile am335x-bonegreen.dtb; setenv fdtbase am335x-bonegreen; elif test $board_rev = GW1A; then setenv fdtfile am335x-bonegreen-wireless.dtb; setenv fdtbase am335x-bonegreen-wireless; elif test $board_rev = AIA0; then setenv fdtfile am335x-abbbi.dtb; setenv fdtbase am335x-abbbi; elif test $board_rev = EIA0; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; elif test $board_rev = SE0A; then setenv fdtfile am335x-sancloud-bbe.dtb; setenv fdtbase am335x-sancloud-bbe; elif test $board_rev = ME06; then setenv fdtfile am335x-bonegreen.dtb; setenv fdtbase am335x-bonegreen; elif test $board_rev = M10A; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; elif test $board_rev = GH01; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; else setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; fi; fi; if test $board_name = A33515BB; then setenv fdtfile am335x-evm.dtb; fi; if test $board_name = A335X_SK; then setenv fdtfile am335x-evmsk.dtb; fi; if test $fdtfile = undefined; then echo WARNING: Could not determine device tree to use; fi;
 +
finduuid=part uuid ${interface} ${bootpart} uuid
 +
gw_ip=192.168.1.1
 +
  importbootenv=echo Importing environment from ${interface} ...; env import -t -r $loadaddr $filesize
 +
  kernel_addr_r=0x82000000
 
  loadaddr=0x82000000
 
  loadaddr=0x82000000
  loadbootenv=fatload mmc ${mmc_dev} ${loadaddr} ${bootenv}
+
  loadbootenv=load ${interface} ${bootpart} ${loadaddr} ${bootenv}
  mmc_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${mmc_root} rootfstype=${mmc_root_fs_type}
+
  loadbootscript=load ${interface} ${bootpart} ${loadaddr} ${scriptfile};
  ip=${ip_method}
+
  loadfdt=echo loading ${fdtdir}/${fdtfile} ...; load ${interface} ${bootpart} ${fdtaddr} ${fdtdir}/${fdtfile}
  mmc_boot=run mmc_args; run mmc_load_uimage_ext4; bootm ${kloadaddr}
+
  loadimage=load ${interface} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
  mmc_dev=0
+
  loadramdisk=load ${interface} ${mmcdev} ${rdaddr} ramdisk.gz
  mmc_load_uimage=fatload mmc ${mmc_dev}:1 ${kloadaddr} ${bootfile}
+
  loadrd=load ${interface} ${bootpart} ${rdaddr} ${bootdir}/${rdfile}; setenv rdsize ${filesize}
  mmc_load_uimage_ext4=ext4load mmc ${mmc_dev}:2 ${kloadaddr} /boot/${bootfile}
+
mmc_boot=if mmc dev ${devnum}; then setenv devtype mmc; run scan_dev_for_boot_part; fi
  mmc_root=/dev/mmcblk0p2 ro
+
  mmcboot=${interface} dev ${mmcdev}; if ${interface} rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootscript; then run bootscript;else if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;if run loadimage; then run mmcloados;fi;fi ;fi;
  mmc_root_fs_type=ext4 rootwait
+
  mmcdev=0
  nand_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${nand_root} noinitrd  
+
  mmcloados=run args_mmc; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loadaddr} - ${fdtaddr}; else if test ${boot_fdt} = try; then bootz; else echo WARN: Cannot load the DT; fi; fi; else bootz; fi;
  rootfstype=${nand_root_fs_type} ip=${ip_method}
+
  mmcrootfstype=ext4 rootwait
  nand_boot=echo Booting from nand ...; run nand_args; nandecc hw 2; nand read.i ${kloadaddr}
+
  netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
  ${nand_src_addr} ${nand_img_siz}; bootm ${kloadaddr}
+
  netboot=echo Booting from network ...; setenv autoload no; dhcp; run netloadimage; run netloadfdt; run netargs; bootz ${loadaddr} - ${fdtaddr}
  nand_img_siz=0x500000
+
netloadfdt=tftp ${fdtaddr} ${fdtfile}
  nand_root=ubi0:rootfs rw ubi.mtd=7,2048
+
  netloadimage=tftp ${loadaddr} ${bootfile}
  nand_root_fs_type=ubifs rootwait=1
+
  netmask=255.255.255.0
nand_src_addr=0x280000
+
  nfs_options=,vers=3
  net_args=run bootargs_defaults;setenv bootargs ${bootargs} root=/dev/nfs
+
  nfsargs=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=/dev/nfs rw rootfstype=${nfsrootfstype} nfsroot=${nfsroot} ip=${ip} ${cmdline}
  nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
+
  nfsboot=echo Booting from ${server_ip} ...; setenv nfsroot ${server_ip}:${root_dir}${nfs_options}; setenv ip ${client_ip}:${server_ip}:${gw_ip}:${netmask}:${hostname}:${device}:${autoconf}; setenv autoload no; setenv serverip ${server_ip}; setenv ipaddr ${client_ip}; tftp ${loadaddr} ${tftp_dir}${bootfile}; tftp ${fdtaddr} ${tftp_dir}dtbs/${fdtfile}; run nfsargs; bootz ${loadaddr} - ${fdtaddr}
  net_boot=echo Booting from network ...; setenv autoload no; dhcp; tftp ${kloadaddr} ${bootfile}; run
+
nfsboot_uname_r=echo Booting from ${server_ip} ...; setenv nfsroot ${server_ip}:${root_dir}${nfs_options}; setenv ip ${client_ip}:${server_ip}:${gw_ip}:${netmask}:${hostname}:${device}:${autoconf}; setenv autoload no; setenv serverip ${server_ip}; setenv ipaddr ${client_ip}; tftp ${loadaddr} ${tftp_dir}vmlinuz-${uname_r}; tftp ${fdtaddr} ${tftp_dir}dtbs/${uname_r}/${fdtfile}; run nfsargs; bootz ${loadaddr} - ${fdtaddr}
  net_args; bootm ${kloadaddr}
 
 
  nfsopts=nolock
 
  nfsopts=nolock
  nor_args=run bootargs_defaults;setenv bootargs ${bootargs} root={nor_root} rootfstype=${nor_root_fs_type}
+
  nfsrootfstype=ext4 rootwait fixrtc
  ip=${ip_method}
+
partitions=uuid_disk=${uuid_gpt_disk};name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}
  nor_boot=echo Booting from NOR ...; run nor_args; cp.b ${0x08080000} ${kloadaddr} ${nor_img_siz}; bootm 
+
pxefile_addr_r=0x80100000
  ${kloadaddr}
+
ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot} rootfstype=${ramrootfstype}
  nor_img_siz=0x280000
+
  ramboot=echo Booting from ramdisk ...; run ramargs; bootz ${loadaddr} ${rdaddr} ${fdtaddr}
  nor_root=/dev/mtdblock3 rw
+
  ramdisk_addr_r=0x88080000
  nor_root_fs_type=jffs2
+
  ramroot=/dev/ram0 rw
  nor_src_addr=0x08080000
+
  ramrootfstype=ext2
 +
  rdaddr=0x88080000
 +
root_dir=/home/userid/targetNFS
 
  rootpath=/export/rootfs
 
  rootpath=/export/rootfs
  script_addr=0x81900000
+
  scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done
  spi_args=run bootargs_defaults;setenv bootargs ${bootargs} root=${spi_root} rootfstype=${spi_root_fs_type}   
+
  scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done
  ip=${ip_method}
+
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}extlinux/extlinux.conf; then echo Found ${prefix}extlinux/extlinux.conf; run boot_extlinux; echo SCRIPT FAILED: continuing...; fi
  spi_boot=echo Booting from spi ...; run spi_args; sf probe ${spi_bus_no}:0; sf read ${kloadaddr}
+
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi; done
  ${spi_src_addr} ${spi_img_siz}; bootm ${kloadaddr}
+
script=boot.scr
  spi_bus_no=0
+
scriptaddr=0x80000000
  spi_img_siz=0x380000
+
scriptfile=${script}
  spi_root=/dev/mtdblock4 rw
+
  server_ip=192.168.1.100
  spi_root_fs_type=jffs2
+
soc=am33xx
  spi_src_addr=0x62000
+
spiargs=setenv bootargs console=${console} ${optargs} root=${spiroot} rootfstype=${spirootfstype}
 +
  spiboot=echo Booting from spi ...; run spiargs; sf probe ${spibusno}:0; sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; bootz ${loadaddr}
 +
  spibusno=0
 +
  spiimgsize=0x362000
 +
  spiroot=/dev/mtdblock4 rw
 +
  spirootfstype=jffs2
 +
  spisrcaddr=0xe0000
 
  static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
 
  static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
  stderr=serial
+
  stderr=ns16550_serial
  stdin=serial
+
  stdin=ns16550_serial
  stdout=serial
+
  stdout=ns16550_serial
 +
uname_boot=setenv bootdir /boot; setenv bootfile vmlinuz-${uname_r}; if test -e ${interface} ${bootpart} ${bootdir}/${bootfile}; then echo loading ${bootdir}/${bootfile} ...; run loadimage;setenv fdtdir /boot/dtbs/${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /usr/lib/linux-image-${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /lib/firmware/${uname_r}/device-tree; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtb-${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtbs; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtb; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else if test -e ${interface} ${bootpart} ${fdtfile}; then run loadfdt;else echo; echo unable to find [dtb=${fdtfile}] did you name it correctly? ...; run failumsboot;fi;fi;fi;fi;fi;fi;fi;fi; setenv rdfile initrd.img-${uname_r}; if test -e ${interface} ${bootpart} ${bootdir}/${rdfile}; then echo loading ${bootdir}/${rdfile} ...; run loadrd;if test -n ${netinstall_enable}; then run args_netinstall; run message;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;if test -n ${uenv_root}; then run args_uenv_root;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;if test -n ${uuid}; then run args_mmc_uuid;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;run args_mmc_old;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; else if test -n ${uenv_root}; then run args_uenv_root;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} - ${fdtaddr}] ... ;bootz ${loadaddr} - ${fdtaddr}; fi;run args_mmc_old;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} - ${fdtaddr}] ... ;bootz ${loadaddr} - ${fdtaddr}; fi;fi;
 +
usbnet_devaddr=c8:a0:30:b7:f9:71
 +
vendor=ti
 +
ver=U-Boot 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00 -0500)
 +
 +
Environment size: 13813/131068 bytes
  
 
Based on your investigation above, predict what will happen at boot time, then boot and check yourself.
 
Based on your investigation above, predict what will happen at boot time, then boot and check yourself.
  
 
== U-boot boot ==
 
== U-boot boot ==
  U-Boot# '''boot'''
+
  => '''boot'''
  SD/MMC found on device 0
+
  switch to partitions #0, OK
  reading uEnv.txt
+
mmc0 is current device
 +
Scanning mmc 0:1...
 +
gpio: pin 56 (gpio 56) value is 0
 +
  gpio: pin 55 (gpio 55) value is 0
 +
gpio: pin 54 (gpio 54) value is 0
 +
gpio: pin 53 (gpio 53) value is 1
 +
 +
switch to partitions #0, OK
 +
mmc0 is current device
 +
 +
gpio: pin 54 (gpio 54) value is 1
 +
Checking for: /uEnv.txt ...
 +
1179 bytes read in 9 ms (127.9 KiB/s)
 
   
 
   
  33 bytes read
+
  gpio: pin 55 (gpio 55) value is 1
 
  Loaded environment from uEnv.txt
 
  Loaded environment from uEnv.txt
 
  Importing environment from mmc ...
 
  Importing environment from mmc ...
  Loading file "/boot/uImage" from mmc device 0:2 xxa2
+
  Checking if uenvcmd is set ...
  3319440 bytes read
+
  ## Booting kernel from Legacy Image at 80007fc0 ...
+
gpio: pin 56 (gpio 56) value is 1
    Image Name:   Angstrom/3.2.25/beaglebone
+
Running uenvcmd ...
    Image Type:  ARM Linux Kernel Image (uncompressed)
+
1198 bytes read in 29 ms (40 KiB/s)
    Data Size:   3319376 Bytes = 3.2 MiB
+
debug: [/boot/vmlinuz-4.4.19-ti-r41] ...
    Load Address: 80008000
+
  7792440 bytes read in 453 ms (16.4 MiB/s)
    Entry Point: 80008000
+
  debug: [/boot/initrd.img-4.4.19-ti-r41] ...
    Verifying Checksum ... OK
+
5076716 bytes read in 299 ms (16.2 MiB/s)
    XIP Kernel Image ... OK
+
debug: [/boot/dtbs/4.4.19-ti-r41/am335x-boneblack.dtb] ...
  OK
+
61581 bytes read in 108 ms (556.6 KiB/s)
 +
debug: [console=tty0 console=ttyO0,115200n8 root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=enable] ...
 +
debug: [bootz 0x82000000 0x88080000:4d76ec 0x88000000] ...
 +
 +
Kernel image @ 0x82000000 [ 0x000000 - 0x76e738 ]
 +
 +
  ## Flattened Device Tree blob at 88000000
 +
    Booting using the fdt blob at 0x88000000
 +
    Using Device Tree in place at 88000000, end 8801208c
 
   
 
   
 
  Starting kernel ...
 
  Starting kernel ...
 
   
 
   
  Uncompressing Linux... done, booting the kernel.
+
  [    0.001215] clocksource_probe: no matching clocksources found
  systemd-fsck[56]: Angstrom-Cloud9: clean, 51868/218592 files, 304346/873534 blocks
+
[    2.023663] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
 +
[    2.202865] omap_voltage_late_init: Voltage driver support not added
 +
[    2.214827] PM: Cannot get wkup_m3_ipc handle
 +
[    2.324848] bone_capemgr bone_capemgr: slot #0: No cape found
 +
[    2.368844] bone_capemgr bone_capemgr: slot #1: No cape found
 +
[    2.412841] bone_capemgr bone_capemgr: slot #2: No cape found
 +
  [   2.456839] bone_capemgr bone_capemgr: slot #3: No cape found
 +
Loading, please wait...
 +
rootfs: clean, 119150/217728 files, 640230/870144 blocks
 +
[  23.137182] davinci-mcasp 4803c000.mcasp: invalid tdm slots: 0
 +
 +
 +
Debian GNU/Linux 8 yoder-debian-bone ttyS0
 
   
 
   
  .---O---.                                         
+
  BeagleBoard.org Debian Image 2016-08-28
|      |                  .-.          o o       
 
|  |  |-----.-----.-----.| |  .----..-----.-----.
 
|      |    | __  |  ---'| '--.|  .-'|    |    |
 
|  |  |  |  |    |---  ||  --'|  |  |  '  | | | |
 
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
 
                -'  |
 
                '---'
 
 
   
 
   
  The Angstrom Distribution beaglebone ttyO0
+
  Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
 
   
 
   
  Angstrom v2012.05 - Kernel 3.2.25
+
  default username:password is [debian:temppwd]
 
   
 
   
  beaglebone login: '''root'''
+
  The IP Address for usb0 is: 192.168.7.2
 +
yoder-debian-bone login:
  
== Looking on the FAT partition ==
+
== Kernel boot messages ==
The SD card you have been using has 2 partitions on it.  Partition 1 is a small FAT partition. These are the files you see appear when you first boot the bone. This contains the boot loaders.
 
 
 
The second partition is ext4 and contains the root file system. These are all the other files. 
 
 
 
You can see the FAT partition with:
 
beagle$ '''mkdir /media/fat'''
 
beagle$ '''ls /media/fat'''    # Hmm....  nothing there
 
beagle$ '''mount /dev/mmcblk0p1 /media/fat'''
 
beagle$ '''ls /media/fat'''    # and now there is
 
MLO  U-BOOT.BIN  UIMAGE  uEnv  uEnv.txt
 
 
 
; MLO
 
: This is the x-loader that the ROM-based loader loads.
 
; u-boot.bin
 
: This is is U-Boot!
 
; uImage
 
: The kernel
 
; uEnv.txt
 
: Kernel command line arguments
 
; uEnv
 
: a directory of uEnv.txt files for various screen sizes
 
 
 
 
 
Look in '''uEnv.txt'''
 
beagle$ '''cat uEnv.txt'''
 
optargs=run_hardware_tests quiet
 
  
These are the arguments that are passed to the kernel when it boots.  Try editing the file and removing '''quiet''', then reboot.  You should see many more boot messages.
+
You can see more details about booting if you edit '''/boot/uEnv.txt''' and find the line
  
== Kernel boot messages ==
+
cmdline=coherent_pool=1M '''quiet''' cape_universal=enable
  
 +
Remove '''quiet''' and reboot.
 
Here's what I got with '''quiet''' removed.
 
Here's what I got with '''quiet''' removed.
  
 
=== Starting kernel ===
 
=== Starting kernel ===
<pre>
+
Starting kernel ...
Starting kernel ...
+
 +
[    0.000000] Booting Linux on physical CPU 0x0
 +
[    0.000000] Initializing cgroup subsys cpuset
 +
[    0.000000] Initializing cgroup subsys cpu
 +
[    0.000000] Initializing cgroup subsys cpuacct
 +
[    0.000000] Linux version 4.4.19-ti-r41 (root@a5-imx6q-wandboard-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Wed Aug 24 16:09:37 UTC 2016
 +
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
 +
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
 +
[    0.000000] Machine model: TI AM335x BeagleBone Black
 +
[    0.000000] cma: Reserved 24 MiB at 0x9e000000
 +
[    0.000000] Memory policy: Data cache writeback
 +
[    0.000000] CPU: All CPU(s) started in SVC mode.
 +
[    0.000000] AM335X ES2.0 (sgx neon )
 +
[    0.000000] PERCPU: Embedded 13 pages/cpu @df923000 s24320 r8192 d20736 u53248
 +
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 129408
 +
[    0.000000] Kernel command line: console=tty0 console=ttyO0,115200n8 root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M cape_universal=enable
 +
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
 +
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
 +
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
 +
[    0.000000] Memory: 473844K/522240K available (7304K kernel code, 902K rwdata, 3684K rodata, 600K init, 907K bss, 23820K reserved, 24576K cma-reserved, 0K highmem)
 +
[    0.000000] Virtual kernel memory layout:
 +
[    0.000000]    vector  : 0xffff0000 - 0xffff1000  (  4 kB)
 +
[    0.000000]    fixmap  : 0xffc00000 - 0xfff00000  (3072 kB)
 +
[    0.000000]    vmalloc : 0xe0800000 - 0xff800000  ( 496 MB)
 +
[    0.000000]    lowmem  : 0xc0000000 - 0xe0000000  ( 512 MB)
 +
[    0.000000]    pkmap  : 0xbfe00000 - 0xc0000000  (  2 MB)
 +
[    0.000000]    modules : 0xbf800000 - 0xbfe00000  (  6 MB)
 +
[    0.000000]      .text : 0xc0008000 - 0xc0ac3350  (10989 kB)
 +
[    0.000000]      .init : 0xc0ac4000 - 0xc0b5a000  ( 600 kB)
 +
[    0.000000]      .data : 0xc0b5a000 - 0xc0c3bbf0  ( 903 kB)
 +
[    0.000000]        .bss : 0xc0c3e000 - 0xc0d20e68  ( 908 kB)
 +
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
 +
[    0.000000] Hierarchical RCU implementation.
 +
[    0.000000] Build-time adjustment of leaf fanout to 32.
 +
[    0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
 +
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1
 +
[    0.000000] NR_IRQS:16 nr_irqs:16 16
 +
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
 +
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
 +
[    0.000012] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
 +
[    0.000032] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
 +
[    0.000043] OMAP clocksource: timer1 at 24000000 Hz
 +
[    0.001214] clocksource_probe: no matching clocksources found
 +
[    0.001402] Console: colour dummy device 80x30
 +
[    0.002177] console [tty0] enabled
 +
[    0.002213] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
 +
[    0.002239] This ensures that you still see kernel messages. Please
 +
[    0.002263] update your kernel commandline.
 +
[    0.002296] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
 +
[    0.046935] pid_max: default: 32768 minimum: 301
 +
[    0.047087] Security Framework initialized
 +
[    0.047116] Yama: becoming mindful.
 +
[    0.047161] AppArmor: AppArmor disabled by boot time parameter
 +
[    0.047334] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
 +
[    0.047367] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
 +
[    0.048166] Initializing cgroup subsys io
 +
[    0.048221] Initializing cgroup subsys memory
 +
[    0.048280] Initializing cgroup subsys devices
 +
[    0.048313] Initializing cgroup subsys freezer
 +
[    0.048344] Initializing cgroup subsys net_cls
 +
[    0.048374] Initializing cgroup subsys perf_event
 +
[    0.048403] Initializing cgroup subsys net_prio
 +
[    0.048440] Initializing cgroup subsys pids
 +
[    0.048506] CPU: Testing write buffer coherency: ok
 +
[    0.048576] ftrace: allocating 34016 entries in 67 pages
 +
[    0.133468] CPU0: thread -1, cpu 0, socket -1, mpidr 0
 +
[    0.133622] Setting up static identity map for 0x80008240 - 0x8000828c
 +
[    0.137064] Brought up 1 CPUs
 +
[    0.137118] SMP: Total of 1 processors activated (995.32 BogoMIPS).
 +
[    0.137140] CPU: All CPU(s) started in SVC mode.
 +
[    0.138570] devtmpfs: initialized
 +
[    0.158429] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
 +
[    0.176605] omap_hwmod: debugss: _wait_target_disable failed
 +
[    0.230414] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
 +
[    0.232593] xor: measuring software checksum speed
 +
[    0.270919]    arm4regs  :  1221.000 MB/sec
 +
[    0.310919]    8regs    :  1094.000 MB/sec
 +
[    0.350916]    32regs    :  1093.000 MB/sec
 +
[    0.390917]    neon      :  1755.000 MB/sec
 +
[    0.390937] xor: using function: neon (1755.000 MB/sec)
 +
[    0.391049] pinctrl core: initialized pinctrl subsystem
 +
[    0.393007] NET: Registered protocol family 16
 +
[    0.396529] DMA: preallocated 1024 KiB pool for atomic coherent allocations
 +
[    0.397763] cpuidle: using governor ladder
 +
[    0.397810] cpuidle: using governor menu
 +
[    0.402881] OMAP GPIO hardware version 0.1
 +
[    0.414683] No ATAGs?
 +
[    0.414725] hw-breakpoint: debug architecture 0x4 unsupported.
 +
[    0.415433] omap4_sram_init:Unable to allocate sram needed to handle errata I688
 +
[    0.415479] omap4_sram_init:Unable to get sram pool needed to handle errata I688
 +
[    0.490981] raid6: int32x1  gen()  263 MB/s
 +
[    0.559004] raid6: int32x1  xor()  240 MB/s
 +
[    0.627080] raid6: int32x2  gen()  375 MB/s
 +
[    0.694977] raid6: int32x2  xor()  280 MB/s
 +
[    0.763039] raid6: int32x4  gen()  391 MB/s
 +
[    0.830943] raid6: int32x4  xor()  264 MB/s
 +
[    0.898939] raid6: int32x8  gen()  358 MB/s
 +
[    0.967046] raid6: int32x8  xor()  232 MB/s
 +
[    1.034951] raid6: neonx1  gen()  1450 MB/s
 +
[    1.102946] raid6: neonx1  xor()  846 MB/s
 +
[    1.170918] raid6: neonx2  gen()  1880 MB/s
 +
[    1.238928] raid6: neonx2  xor()  1150 MB/s
 +
[    1.306921] raid6: neonx4  gen()  1982 MB/s
 +
[    1.374915] raid6: neonx4  xor()  1199 MB/s
 +
[    1.442929] raid6: neonx8  gen()  1209 MB/s
 +
[    1.510961] raid6: neonx8  xor()  670 MB/s
 +
[    1.510981] raid6: using algorithm neonx4 gen() 1982 MB/s
 +
[    1.511000] raid6: .... xor() 1199 MB/s, rmw enabled
 +
[    1.511019] raid6: using intx1 recovery algorithm
 +
[    1.519854] edma 49000000.edma: TI EDMA DMA engine driver
 +
[    1.524636] SCSI subsystem initialized
 +
[    1.525375] usbcore: registered new interface driver usbfs
 +
[    1.525472] usbcore: registered new interface driver hub
 +
[    1.525580] usbcore: registered new device driver usb
 +
[    1.526170] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
 +
[    1.526255] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring probe
 +
[    1.526402] media: Linux media interface: v0.10
 +
[    1.526477] Linux video capture interface: v2.00
 +
[    1.526587] pps_core: LinuxPPS API ver. 1 registered
 +
[    1.526610] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
 +
[    1.526659] PTP clock support registered
 +
[    1.527547] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
 +
[    1.528806] NetLabel: Initializing
 +
[    1.528847] NetLabel:  domain hash size = 128
 +
[    1.528864] NetLabel:  protocols = UNLABELED CIPSOv4
 +
[    1.528934] NetLabel:  unlabeled traffic allowed by default
 +
[    1.529281] clocksource: Switched to clocksource timer1
 +
[    1.636087] NET: Registered protocol family 2
 +
[    1.636882] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
 +
[    1.636955] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
 +
[    1.637027] TCP: Hash tables configured (established 4096 bind 4096)
 +
[    1.637113] UDP hash table entries: 256 (order: 1, 8192 bytes)
 +
[    1.637150] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
 +
[    1.637541] NET: Registered protocol family 1
 +
[    1.638079] RPC: Registered named UNIX socket transport module.
 +
[    1.638116] RPC: Registered udp transport module.
 +
[    1.638135] RPC: Registered tcp transport module.
 +
[    1.638153] RPC: Registered tcp NFSv4.1 backchannel transport module.
 +
[    1.638771] Unpacking initramfs...
 +
[    1.995660] Freeing initrd memory: 4960K (c8080000 - c8558000)
 +
[    1.996220] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
 +
[    1.998983] futex hash table entries: 256 (order: 2, 16384 bytes)
 +
[    1.999140] audit: initializing netlink subsys (disabled)
 +
[    1.999231] audit: type=2000 audit(1.936:1): initialized
 +
[    2.008864] zbud: loaded
 +
[    2.009659] VFS: Disk quotas dquot_6.6.0
 +
[    2.009935] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
 +
[    2.012494] NFS: Registering the id_resolver key type
 +
[    2.012582] Key type id_resolver registered
 +
[    2.012603] Key type id_legacy registered
 +
[    2.012644] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
 +
[    2.013003] fuse init (API version 7.23)
 +
[    2.013716] SGI XFS with ACLs, security attributes, realtime, no debug enabled
 +
[    2.021375] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
 +
[    2.021715] io scheduler noop registered
 +
[    2.021749] io scheduler deadline registered
 +
[    2.021828] io scheduler cfq registered (default)
 +
[    2.023174] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
 +
[    2.024851] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
 +
[    2.026344] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
 +
[    2.029166] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 158, base_baud = 3000000) is a 8250
 +
[    2.918750] console [ttyS0] enabled
 +
[    2.923717] [drm] Initialized drm 1.1.0 20060810
 +
[    2.981304] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
 +
[    2.987506] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
 +
[    2.994101] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]
 +
[    3.007809] libphy: 4a101000.mdio: probed
 +
[    3.011993] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
 +
[    3.022102] cpsw 4a100000.ethernet: Detected MACID = c8:a0:30:b7:f9:6f
 +
[    3.030630] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
 +
[    3.037407] ehci-platform: EHCI generic platform driver
 +
[    3.042908] ehci-omap: OMAP-EHCI Host Controller driver
 +
[    3.048610] usbcore: registered new interface driver usb-storage
 +
[    3.056624] 47401300.usb-phy supply vcc not found, using dummy regulator
 +
[    3.067332] 47401b00.usb-phy supply vcc not found, using dummy regulator
 +
[    3.076472] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
 +
[    3.082365] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
 +
[    3.090513] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
 +
[    3.097387] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
 +
[    3.104694] usb usb1: Product: MUSB HDRC host driver
 +
[    3.109713] usb usb1: Manufacturer: Linux 4.4.19-ti-r41 musb-hcd
 +
[    3.115773] usb usb1: SerialNumber: musb-hdrc.1.auto
 +
[    3.121785] hub 1-0:1.0: USB hub found
 +
[    3.125693] hub 1-0:1.0: 1 port detected
 +
[    3.138657] mousedev: PS/2 mouse device common for all mice
 +
[    3.146409] omap_rtc 44e3e000.rtc: already running
 +
[    3.151745] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
 +
[    3.159683] i2c /dev entries driver
 +
[    3.164777] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
 +
[    3.172143] cpuidle: enable-method property 'ti,am3352' found operations
 +
[    3.179605] omap_hsmmc 48060000.mmc: Got CD GPIO
 +
[    3.244437] mmc0: host does not support reading read-only switch, assuming write-enable
 +
[    3.254049] hidraw: raw HID events driver (C) Jiri Kosina
 +
[    3.260239] usbcore: registered new interface driver usbhid
 +
[    3.265937] usbhid: USB HID core driver
 +
[    3.270042] mmc0: new high speed SDHC card at address b368
 +
[    3.275966] ashmem: initialized
 +
[    3.280478]  remoteproc0: wkup_m3 is available
 +
[    3.285043]  remoteproc0: Note: remoteproc is still under development and considered experimental.
 +
[    3.294086]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
 +
[    3.304943] mmcblk0: mmc0:b368 G5334 7.46 GiB
 +
[    3.311023]  mmcblk0: p1
 +
[    3.317199] NET: Registered protocol family 10
 +
[    3.326661] mip6: Mobile IPv6
 +
[    3.329868] NET: Registered protocol family 17
 +
[    3.334555] Key type dns_resolver registered
 +
[    3.338948] mpls_gso: MPLS GSO support
 +
[    3.343029] omap_voltage_late_init: Voltage driver support not added
 +
[    3.353815] PM: Cannot get wkup_m3_ipc handle
 +
[    3.358384] ThumbEE CPU extension supported.
 +
[    3.362734] Registering SWP/SWPB emulation handler
 +
[    3.368534] registered taskstats version 1
 +
[    3.372906] zswap: loaded using pool lzo/zbud
 +
[    3.380662] Btrfs loaded
 +
[    3.390869] mmc1: MAN_BKOPS_EN bit is not set
 +
[    3.399395] mmc1: new high speed MMC card at address 0001
 +
[    3.410610] mmcblk1: mmc1:0001 MMC02G 1.79 GiB
 +
[    3.420997] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
 +
[    3.427389] Key type encrypted registered
 +
[    3.434687] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/input/input0
 +
[    3.444020] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
 +
[    3.451982]  mmcblk1: p1
 +
[    3.474639] tps65217 0-0024: TPS65217 ID 0xe version 1.2
 +
[    3.480588] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
 +
[    3.487799] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
 +
[    3.495055] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
 +
[    3.502480] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
 +
[    3.509797] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
 +
[    3.517107] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
 +
[    3.524090] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
 +
[    3.530741]  remoteproc0: powering up wkup_m3
 +
[    3.535250]  remoteproc0: Booting fw image am335x-pm-firmware.elf, size 219735
 +
[    3.542828]  remoteproc0: remote processor wkup_m3 is now up
 +
[    3.548538] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x191
 +
[    3.560056] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,0A5C,3513BBBK3281'
 +
[    3.567428] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4
 +
[    3.613289] bone_capemgr bone_capemgr: slot #0: No cape found
 +
[    3.657285] bone_capemgr bone_capemgr: slot #1: No cape found
 +
[    3.701285] bone_capemgr bone_capemgr: slot #2: No cape found
 +
[    3.745285] bone_capemgr bone_capemgr: slot #3: No cape found
 +
[    3.751174] bone_capemgr bone_capemgr: initialized OK.
 +
[    3.758351] PM: bootloader does not support rtc-only!
 +
[    3.764074] omap_rtc 44e3e000.rtc: setting system clock to 2016-09-22 13:34:17 UTC (1474551257)
 +
[    3.773005] of_cfs_init
 +
[    3.775639] of_cfs_init: OK
 +
[    3.784831] Freeing unused kernel memory: 600K (c0ac4000 - c0b5a000)
 +
Loading, please wait...
 +
starting version 230
 +
[    3.887157] random: systemd-udevd: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
 +
[    3.907924] random: udevadm: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
 +
[    3.918299] random: systemd-udevd: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
 +
[    3.928734] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.938312] random: systemd-udevd: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.948413] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.963192] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.973490] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.983446] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
[    3.993541] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
 +
Begin: Loading essential drivers ... done.
 +
Begin: Running /scripts/init-premount ... done.
 +
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
 +
Begin: Running /scripts/local-premount ... done.
 +
Begin: Will now check root file system ... fsck from util-linux 2.25.2
 +
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p1] fsck.ext4 -a -C0 /dev/mmcblk0p1
 +
rootfs: clean, 119279/217728 files, 640901/870144 blocks
 +
done.
 +
[    7.064838] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
 +
done.
 +
Begin: Running /scripts/local-bottom ... done.
 +
Begin: Running /scripts/init-bottom ... done.
 +
[    7.632895] systemd[1]: Failed to insert module 'kdbus': Function not implemented
 +
[    7.681963] systemd[1]: systemd 230 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
 +
[    7.700860] systemd[1]: Detected architecture arm.
 +
 +
Welcome to �[1mDebian GNU/Linux 8 (jessie)�[0m!
 +
 +
[    7.715064] systemd[1]: Set hostname to <yoder-debian-bone>.
 +
[    8.243335] systemd[1]: Reached target Encrypted Volumes.
 +
[OK] Reached target Encrypted Volumes.
 +
[    8.258765] systemd[1]: Created slice User and Session Slice.
 +
[OK] Created slice User and Session Slice.
 +
[    8.278603] systemd[1]: Listening on Journal Audit Socket.
 +
[OK] Listening on Journal Audit Socket.
 +
[    8.290348] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
 +
[OK] Started Dispatch Password Requests to Console Directory Watch.
 +
[    8.310181] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
 +
[OK] Listening on /dev/initctl Compatibility Named Pipe.
 +
[    8.331306] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
 +
[OK] Set up automount Arbitrary Executab...ats File System Automount Point.
 +
[    8.354264] systemd[1]: Listening on Journal Socket (/dev/log).
 +
[OK] Listening on Journal Socket (/dev/log).
 +
[    8.374124] systemd[1]: Listening on udev Kernel Socket.
 +
[OK] Listening on udev Kernel Socket.
 +
[    8.385908] systemd[1]: Reached target Remote File Systems (Pre).
 +
[OK] Reached target Remote File Systems (Pre).
 +
[    8.405892] systemd[1]: Reached target Remote File Systems.
 +
[OK] Reached target Remote File Systems.
 +
[    8.418237] systemd[1]: Listening on udev Control Socket.
 +
[OK] Listening on udev Control Socket.
 +
[    8.430123] systemd[1]: Listening on fsck to fsckd communication Socket.
 +
[OK] Listening on fsck to fsckd communication Socket.
 +
[    8.450256] systemd[1]: Listening on Journal Socket.
 +
[OK] Listening on Journal Socket.
 +
[    8.462411] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
 +
[OK] Started Forward Password Requests to Wall Directory Watch.
 +
[    8.481887] systemd[1]: Reached target Paths.
 +
[OK] Reached target Paths.
 +
[    8.494192] systemd[1]: Listening on Syslog Socket.
 +
[OK] Listening on Syslog Socket.
 +
[    8.506712] systemd[1]: Created slice System Slice.
 +
[OK] Created slice System Slice.
 +
[    8.522139] systemd[1]: Mounting POSIX Message Queue File System...
 +
          Mounting POSIX Message Queue File System...
 +
[    8.565986] systemd[1]: Starting Remount Root and Kernel File Systems...
 +
          Starting Remount Root and Kernel File Systems...
 +
[    8.618477] systemd[1]: Starting Journal Service...
 +
          Starting Journal Service...
 +
[    8.697064] systemd[1]: Starting Load Kernel Modules...
 +
[    8.705373] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
 +
          Starting Load Kernel Modules...
 +
[    8.752345] systemd[1]: Starting Create list of required static device nodes for the current kernel...
 +
          Starting Create list of required st... nodes for the current kernel...
 +
[    8.858357] systemd[1]: Mounting /sys/kernel/debug...
 +
          Mounting /sys/kernel/debug...
 +
[    8.930638] systemd[1]: Created slice system-getty.slice.
 +
[OK] Created slice system-getty.slice.
 +
[    8.973861] systemd[1]: Reached target Slices.
 +
[OK] Reached target Slices.
 +
[    8.999111] systemd[1]: Created slice system-serial\x2dgetty.slice.
 +
[OK] Created slice system-serial\x2dgetty.slice.
 +
[    9.021807] systemd[1]: Reached target Swap.
 +
[OK] Reached target Swap.
 +
[    9.054383] systemd[1]: Mounted POSIX Message Queue File System.
 +
[OK] Mounted POSIX Message Queue File System.
 +
[    9.086058] systemd[1]: Mounted /sys/kernel/debug.
 +
[OK] Mounted /sys/kernel/debug.
 +
[    9.098691] systemd[1]: Started Journal Service.
 +
[OK] Started Journal Service.
 +
[OK] Started Remount Root and Kernel File Systems.
 +
[OK] Started Load Kernel Modules.
 +
[OK] Started Create list of required sta...ce nodes for the current kernel.
 +
          Starting Create Static Device Nodes in /dev...
 +
          Starting Apply Kernel Variables...
 +
          Mounting FUSE Control File System...
 +
          Mounting Configuration File System...
 +
          Starting Load/Save Random Seed...
 +
          Starting udev Coldplug all Devices...
 +
          Starting Flush Journal to Persistent Storage...
 +
[OK] Mounted Configuration File System.
 +
[OK] Mounted FUSE Control File System.
 +
[OK] Started Create Static Device Nodes in /dev.
 +
[OK] Started Apply Kernel Variables.
 +
[OK] Started Load/Save Random Seed.
 +
[    9.718236] systemd-journald[537]: Received request to flush runtime journal from PID 1
 +
[OK] Reached target Local File Systems (Pre).
 +
[OK] Reached target Local File Systems.
 +
          Starting Raise network interfaces...
 +
          Starting udev Kernel Device Manager...
 +
[OK] Started Flush Journal to Persistent Storage.
 +
          Starting Create Volatile Files and Directories...
 +
[OK] Started udev Kernel Device Manager.
 +
          Starting LSB: Tune IDE hard disks...
 +
[OK] Started Create Volatile Files and Directories.
 +
          Starting Network Time Synchronization...
 +
          Starting Update UTMP about System Boot/Shutdown...
 +
[OK] Started Network Time Synchronization.
 +
[OK] Started Update UTMP about System Boot/Shutdown.
 +
[OK] Started LSB: Tune IDE hard disks.
 +
[OK] Reached target System Time Synchronized.
 +
[OK] Started udev Coldplug all Devices.
 +
[OK] Reached target System Initialization.
 +
          Starting Restore Sound Card State...
 +
[OK] Listening on cloud9.socket.
 +
[OK] Listening on bonescript.socket.
 +
[OK] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
 +
[OK] Started Daily Cleanup of Temporary Directories.
 +
[OK] Reached target Timers.
 +
[OK] Listening on node-red.socket.
 +
[OK] Listening on D-Bus System Message Bus Socket.
 +
[OK] Reached target Sockets.
 +
[OK] Reached target Basic System.
 +
          Starting Generic Board Startup...
 +
          Starting Avahi mDNS/DNS-SD Stack...
 +
          Starting Cape Manager Service...
 +
          Starting LSB: Start busybox udhcpd at boot time...
 +
[OK] Started Entropy daemon using the HAVEGE algorithm.
 +
          Starting LSB: Load kernel modules needed to enable cpufreq scaling...
 +
[OK] Started Bonescript autorun.
 +
          Starting Restore /etc/resolv.conf i...e the ppp link was shut down....
 +
[OK] Started Regular background program processing daemon.
 +
[  13.102614] random: nonblocking pool is initialized
 +
[OK] Started D-Bus System Message Bus.
 +
[OK] Started Avahi mDNS/DNS-SD Stack.
 +
          Starting Connection service...
 +
          Starting System Logging Service...
 +
[OK] Started BB WL18xx wlan0 Service.
 +
          Starting Login Service...
 +
[OK] Started System Logging Service.
 +
[OK] Started Restore Sound Card State.
 +
[OK] Started Cape Manager Service.
 +
[OK] Started Restore /etc/resolv.conf if...ore the ppp link was shut down..
 +
[  15.028289] using random self ethernet address
 +
[  15.032924] using random host ethernet address
 +
[  15.080200] using host ethernet address: C8:A0:30:B7:F9:70
 +
[  15.085685] using self ethernet address: C8:A0:30:B7:F9:71[  15.255829] Mass Storage Function, version: 2009/09/11
 +
[  15.282794] LUN: removable file: (no medium)
 +
[  15.338111] net eth0: initializing cpsw version 1.12 (0)
 +
[  15.343559] net eth0: initialized cpsw ale version 1.4
 +
[  15.348775] net eth0: ALE Table size 1024
 +
[  15.373739] LUN: removable read only file: /var/cache/doc-beaglebone-getting-started/beaglebone-getting-started-2015-12-04.img
 +
[  15.385325] Number of LUNs=1
 +
[OK] Started LSB: Start busybox udhcpd at boot time.
 +
[OK] Started Connection service.
 +
[  15.614361] net eth0: phy found : id is : 0x7c0f1
 +
[  15.683908] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
 +
[  15.692351] usb0: HOST MAC c8:a0:30:b7:f9:70
 +
[  15.721801] usb0: MAC c8:a0:30:b7:f9:71
 +
[  15.757527] g_multi gadget: Multifunction Composite Gadget
 +
[  15.763153] g_multi gadget: g_multi ready
 +
[OK] Started Login Service.
 +
[  16.375961] g_multi gadget: high-speed config #1: Multifunction with RNDIS
 +
[OK] Started LSB: Load kernel modules needed to enable cpufreq scaling.
 +
          Starting LSB: set CPUFreq kernel parameters...
 +
          Starting WPA supplicant...
 +
          Starting Hostname Service...
 +
[OK] Started Raise network interfaces.
 +
[OK] Started Hostname Service.
 +
          Stopping LSB: Start busybox udhcpd at boot time...
 +
[OK] Started LSB: set CPUFreq kernel parameters.
 +
[OK] Stopped LSB: Start busybox udhcpd at boot time.
 +
[OK] Started WPA supplicant.
 +
[OK] Reached target Network.
 +
[OK] Reached target Network is Online.
 +
          Starting LSB: Advanced IEEE 802.11 management daemon...
 +
          Starting /etc/rc.local Compatibility...
 +
          Starting Permit User Sessions...
 +
[OK] Started OpenBSD Secure Shell server.
 +
[OK] Started LSB: Advanced IEEE 802.11 management daemon.
 +
[OK] Started /etc/rc.local Compatibility.
 +
[OK] Started Permit User Sessions.
 +
[OK] Started Getty on tty1.
 +
          Starting LSB: Start busybox udhcpd at boot time...
 +
[OK] Started LSB: Start busybox udhcpd at boot time.
 +
[OK] Found device /dev/ttyS0.
 +
[OK] Started Serial Getty on ttyS0.
 +
[  24.512280] davinci-mcasp 4803c000.mcasp: invalid tdm slots: 0
 +
[  27.039099] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
 +
[  27.395051] tda998x 0-0070: found TDA19988
 +
[  27.494498] tilcdc 4830e000.lcdc: bound 0-0070 (ops tda998x_ops [tda998x])
 +
[  27.666538] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 +
[  27.673348] [drm] No driver support for vblank timestamp query.
 +
[  28.057739] tilcdc 4830e000.lcdc: No connectors reported connected with modes
 +
[  28.289846] [drm] Cannot find any crtc or sizes - going 1024x768
 +
 +
 +
Debian GNU/Linux 8 yoder-debian-bone ttyS0
 +
 +
BeagleBoard.org Debian Image 2016-08-28
 +
 +
Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
 +
 +
default username:password is [debian:temppwd]
 +
 +
The IP Address for usb0 is: 192.168.7.2
 +
yoder-debian-bone login: [  28.669804] Console: switching to colour frame buffer device 128x48
 +
[  28.977776] tilcdc 4830e000.lcdc: fb0:  frame buffer device
 +
[  29.129500] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
 +
[  29.368073] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
 +
[  29.685221] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
 +
[  33.668403] asoc-simple-card sound: i2s-hifi <-> 48038000.mcasp mapping ok
 +
[  33.972674] bone_capemgr bone_capemgr: part_number 'cape-universaln', version 'N/A'
 +
[  34.000640] bone_capemgr bone_capemgr: slot #4: override
 +
[  34.006262] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
 +
[  34.013438] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,cape-universaln'
 +
[  34.364580] gpio-of-helper ocp:cape-universal: Allocated GPIO id=0
 +
[  34.390274] gpio-of-helper ocp:cape-universal: Allocated GPIO id=1
 +
[  34.416541] gpio-of-helper ocp:cape-universal: Allocated GPIO id=2
 +
[  34.437073] gpio-of-helper ocp:cape-universal: Allocated GPIO id=3
 +
[  34.462417] gpio-of-helper ocp:cape-universal: Allocated GPIO id=4
 +
[  34.484217] gpio-of-helper ocp:cape-universal: Allocated GPIO id=5
 +
[  34.508607] gpio-of-helper ocp:cape-universal: Allocated GPIO id=6
 +
[  34.529743] gpio-of-helper ocp:cape-universal: Allocated GPIO id=7
 +
[  34.556563] gpio-of-helper ocp:cape-universal: Allocated GPIO id=8
 +
[  34.577798] gpio-of-helper ocp:cape-universal: Allocated GPIO id=9
 +
[  34.601853] gpio-of-helper ocp:cape-universal: Allocated GPIO id=10
 +
[  34.626168] gpio-of-helper ocp:cape-universal: Allocated GPIO id=11
 +
[  34.651351] gpio-of-helper ocp:cape-universal: Allocated GPIO id=12
 +
[  34.670323] gpio-of-helper ocp:cape-universal: Allocated GPIO id=13
 +
[  34.696061] gpio-of-helper ocp:cape-universal: Allocated GPIO id=14
 +
[  34.717090] gpio-of-helper ocp:cape-universal: Allocated GPIO id=15
 +
[  34.745719] gpio-of-helper ocp:cape-universal: Allocated GPIO id=16
 +
[  34.763771] gpio-of-helper ocp:cape-universal: Allocated GPIO id=17
 +
[  34.789134] gpio-of-helper ocp:cape-universal: Allocated GPIO id=18
 +
[  34.813830] gpio-of-helper ocp:cape-universal: Allocated GPIO id=19
 +
[  34.833908] gpio-of-helper ocp:cape-universal: Allocated GPIO id=20
 +
[  34.865054] gpio-of-helper ocp:cape-universal: Allocated GPIO id=21
 +
[  34.894656] gpio-of-helper ocp:cape-universal: Allocated GPIO id=22
 +
[  34.922150] gpio-of-helper ocp:cape-universal: Allocated GPIO id=23
 +
[  34.949775] gpio-of-helper ocp:cape-universal: Allocated GPIO id=24
 +
[  34.980587] gpio-of-helper ocp:cape-universal: Allocated GPIO id=25
 +
[  35.009752] gpio-of-helper ocp:cape-universal: Allocated GPIO id=26
 +
[  35.037774] gpio-of-helper ocp:cape-universal: Allocated GPIO id=27
 +
[  35.065842] gpio-of-helper ocp:cape-universal: Allocated GPIO id=28
 +
[  35.097765] gpio-of-helper ocp:cape-universal: Allocated GPIO id=29
 +
[  35.118941] gpio-of-helper ocp:cape-universal: Allocated GPIO id=30
 +
[  35.152175] gpio-of-helper ocp:cape-universal: Allocated GPIO id=31
 +
[  35.179848] gpio-of-helper ocp:cape-universal: Allocated GPIO id=32
 +
[  35.187844] gpio-of-helper ocp:cape-universal: ready
 +
[  35.233688] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 191, base_baud = 3000000) is a 8250
 +
[  35.274247] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 192, base_baud = 3000000) is a 8250
 +
[  35.313736] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 193, base_baud = 3000000) is a 8250
 +
[  35.351856] platform 48300180.eqep: Cannot lookup hwmod 'eqep0'
 +
[  35.387665] platform 48302180.eqep: Cannot lookup hwmod 'eqep1'
 +
[  35.419199] platform 48304180.eqep: Cannot lookup hwmod 'eqep2'
 +
[  35.461676] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
 +
[  35.492186] bone_capemgr bone_capemgr: slot #4: dtbo 'cape-universaln-00A0.dtbo' loaded; overlay id #0
 +
[  36.935231] eqep 48300180.eqep: ver. 1.0
 +
[  37.181480] eqep 48300180.eqep: failed to get clock
 +
[  37.266945] eqep: probe of 48300180.eqep failed with error -2
 +
[  37.489999] eqep 48302180.eqep: ver. 1.0
 +
[  37.507853] CAN device driver interface
 +
[  37.653641] eqep 48302180.eqep: failed to get clock
 +
[  37.669575] c_can_platform 481cc000.can: c_can_platform device registered (regs=fa1cc000, irq=200)
 +
[  37.801624] eqep: probe of 48302180.eqep failed with error -2
 +
[  37.927494] c_can_platform 481d0000.can: c_can_platform device registered (regs=fa1d0000, irq=201)
 +
[  37.954568] eqep 48304180.eqep: ver. 1.0
 +
[  37.982355] eqep 48304180.eqep: failed to get clock
 +
[  38.027724] eqep: probe of 48304180.eqep failed with error -2
 +
 +
 +
Debian GNU/Linux 8 yoder-debian-bone ttyS0
 +
 +
BeagleBoard.org Debian Image 2016-08-28
 +
 +
Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
 +
 +
default username:password is [debian:temppwd]
 +
 +
The IP Address for usb0 is: 192.168.7.2
 +
yoder-debian-bone login:
  
Uncompressing Linux... done, booting the kernel.
+
=== Stopping kernel ===
[    0.000000] Initializing cgroup subsys cpuset
 
[    0.000000] Initializing cgroup subsys cpu
 
[    0.000000] Linux version 3.2.25 (koen@Angstrom-F16-vm-rpm) (gcc version 4.5.4 20120305 (prerelease) (GCC) ) #1 Fri Aug 10 10:33:12 CEST 2012
 
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c53c7d
 
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
 
[    0.000000] Machine: am335xevm
 
[    0.000000] Memory policy: ECC disabled, Data cache writeback
 
[    0.000000] AM335X ES1.0 (sgx neon )
 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024
 
[    0.000000] Kernel command line: console=ttyO0,115200n8 run_hardware_tests root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait ip=none
 
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
 
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
 
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
 
[    0.000000] allocated 1048576 bytes of page_cgroup
 
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
 
[    0.000000] Memory: 256MB = 256MB total
 
[    0.000000] Memory: 253240k/253240k available, 8904k reserved, 0K highmem
 
[    0.000000] Virtual kernel memory layout:
 
[    0.000000]    vector  : 0xffff0000 - 0xffff1000  (  4 kB)
 
[    0.000000]    fixmap  : 0xfff00000 - 0xfffe0000  ( 896 kB)
 
[    0.000000]    vmalloc : 0xd0800000 - 0xff000000  ( 744 MB)
 
[    0.000000]    lowmem  : 0xc0000000 - 0xd0000000  ( 256 MB)
 
[    0.000000]    modules : 0xbf800000 - 0xc0000000  (  8 MB)
 
[    0.000000]      .text : 0xc0008000 - 0xc047fa10  (4575 kB)
 
[    0.000000]      .init : 0xc0480000 - 0xc04b8000  ( 224 kB)
 
[    0.000000]      .data : 0xc04b8000 - 0xc050a168  ( 329 kB)
 
[    0.000000]        .bss : 0xc050a18c - 0xc0575894  ( 430 kB)
 
[    0.000000] NR_IRQS:410 nr_irqs:410 410
 
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
 
[    0.000000] Total of 128 interrupts on 1 active controller
 
[    0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
 
[    0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz
 
[    0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
 
[    0.000000] Console: colour dummy device 80x30
 
[    0.000183] Calibrating delay loop... 498.89 BogoMIPS (lpj=2494464)
 
[    0.058563] pid_max: default: 32768 minimum: 301
 
[    0.058746] Security Framework initialized
 
[    0.058807] Mount-cache hash table entries: 512
 
[    0.059234] Initializing cgroup subsys cpuacct
 
[    0.059295] Initializing cgroup subsys memory
 
[    0.059326] Initializing cgroup subsys devices
 
[    0.059356] Initializing cgroup subsys freezer
 
[    0.059356] Initializing cgroup subsys blkio
 
[    0.059387] Initializing cgroup subsys perf_event
 
[    0.059478] CPU: Testing write buffer coherency: ok
 
[    0.060729] devtmpfs: initialized
 
[    0.081268] omap_hwmod: gfx: failed to hardreset
 
[    0.097991] omap_hwmod: pruss: failed to hardreset
 
[    0.098571] print_constraints: dummy:
 
[    0.098876] NET: Registered protocol family 16
 
[    0.100128] OMAP GPIO hardware version 0.1
 
[    0.101409] omap_mux_init: Add partition: #1: core, flags: 0
 
[    0.102935]  omap_i2c.1: alias fck already exists
 
[    0.103363] hw-breakpoint: debug architecture 0x4 unsupported.
 
[    0.103546]  omap2_mcspi.1: alias fck already exists
 
[    0.103698]  omap2_mcspi.2: alias fck already exists
 
[    0.103881]  edma.0: alias fck already exists
 
[    0.103881]  edma.0: alias fck already exists
 
[    0.103912]  edma.0: alias fck already exists
 
[    0.104003] cape: pcm register
 
[    0.114349] bio: create slab <bio-0> at 0
 
[    0.115661] SCSI subsystem initialized
 
[    0.116607] usbcore: registered new interface driver usbfs
 
[    0.116760] usbcore: registered new interface driver hub
 
[    0.116943] usbcore: registered new device driver usb
 
[    0.117095] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
 
[    0.117248] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
 
[    0.117797] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
 
[    0.119110] Advanced Linux Sound Architecture Driver Version 1.0.24.
 
[    0.119720] Switching to clocksource gp timer
 
[    0.147979] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
 
[    0.148193] musb-hdrc musb-hdrc.0: dma type: pio
 
[    0.148406] MUSB0 controller's USBSS revision = 4ea20800
 
[    0.148895] musb-hdrc musb-hdrc.0: USB OTG mode controller at d081c000 using PIO, IRQ 18
 
[    0.149230] musb-hdrc musb-hdrc.1: dma type: pio
 
[    0.149383] MUSB1 controller's USBSS revision = 4ea20800
 
[    0.149536] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
 
[    0.149627] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
 
[    0.149871] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
 
[    0.149871] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
 
[    0.149902] usb usb1: Product: MUSB HDRC host driver
 
[    0.149932] usb usb1: Manufacturer: Linux 3.2.25 musb-hcd
 
[    0.149932] usb usb1: SerialNumber: musb-hdrc.1
 
[    0.150695] hub 1-0:1.0: USB hub found
 
[    0.150726] hub 1-0:1.0: 1 port detected
 
[    0.151275] musb-hdrc musb-hdrc.1: USB Host mode controller at d081e800 using PIO, IRQ 19
 
[    0.151702] NET: Registered protocol family 2
 
[    0.151947] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
 
[    0.152404] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
 
[    0.152648] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
 
[    0.152770] TCP: Hash tables configured (established 8192 bind 8192)
 
[    0.152801] TCP reno registered
 
[    0.152801] UDP hash table entries: 256 (order: 0, 4096 bytes)
 
[    0.152832] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
 
[    0.153137] NET: Registered protocol family 1
 
[    0.153533] RPC: Registered named UNIX socket transport module.
 
[    0.153533] RPC: Registered udp transport module.
 
[    0.153564] RPC: Registered tcp transport module.
 
[    0.153564] RPC: Registered tcp NFSv4.1 backchannel transport module.
 
[    0.155517] audit: initializing netlink socket (disabled)
 
[    0.155578] type=2000 audit(0.150:1): initialized
 
[    0.157165] VFS: Disk quotas dquot_6.5.2
 
[    0.157226] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
 
[    0.158416] msgmni has been set to 494
 
[    0.159545] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
 
[    0.159667] io scheduler noop registered
 
[    0.159667] io scheduler deadline registered
 
[    0.159759] io scheduler cfq registered (default)
 
[    0.160858] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
 
[    0.162414] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
 
[    0.792907] console [ttyO0] enabled
 
[    0.797210] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
 
[    0.805175] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
 
[    0.813049] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
 
[    0.820953] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
 
[    0.828826] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
 
[    0.838073] brd: module loaded
 
[    0.846069] loop: module loaded
 
[    0.849487] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    0.910339] No daughter card found
 
[    0.913970] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    0.929260] Board name: A335BONE
 
[    0.932678] Board version: 00A3
 
[    0.936004] The board is a AM335x Beaglebone.
 
[    0.941284] tps65217 1-0024: TPS65217 ID 0x7 version 1.0
 
[    0.948760] print_constraints: DCDC1: 900 <--> 1800 mV at 1800 mV
 
[    0.957275] print_constraints: DCDC2: 900 <--> 3300 mV at 1275 mV
 
[    0.965728] print_constraints: DCDC3: 900 <--> 1500 mV at 1100 mV
 
[    0.974151] print_constraints: LDO1: 1000 <--> 3300 mV at 1800 mV
 
[    0.982604] print_constraints: LDO2: 900 <--> 3300 mV at 3300 mV
 
[    0.990936] print_constraints: LDO3: 1800 <--> 3300 mV at 3300 mV
 
[    0.999359] print_constraints: LDO4: 1800 <--> 3300 mV at 3300 mV
 
[    1.006408] Maximum current provided by the USB port is 500mA which is not sufficient when operating @OPP120 and OPPTURBO. The current requirement for some use-cases using OPP100 might also exceed the maximum current that the USB port can provide. Unless you are fully confident that the current requirements for OPP100 use-case don't exceed the USB limits, switching to AC power is recommended.
 
[    1.043487]  omap_i2c.3: alias fck already exists
 
[    1.048706] omap_i2c omap_i2c.3: bus 3 rev2.4.0 at 100 kHz
 
[    1.059112] at24 3-0054: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    1.120361] BeagleBone cape EEPROM: could not read eeprom at address 0x54
 
[    1.127563] at24 3-0055: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    1.190368] BeagleBone cape EEPROM: could not read eeprom at address 0x55
 
[    1.197570] at24 3-0056: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    1.260375] BeagleBone cape EEPROM: could not read eeprom at address 0x56
 
[    1.267578] at24 3-0057: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
 
[    1.330383] BeagleBone cape EEPROM: could not read eeprom at address 0x57
 
[    1.337707]  omap_hsmmc.0: alias fck already exists
 
[    1.343017] BeagleBone cape: exporting ADC pins to sysfs
 
[    1.348876] Beaglebone: initializing onboard LEDs
 
[    1.353881] BeagleBone cape: exporting SPI pins as spidev
 
[    1.360107] BeagleBone cape: initializing w1-gpio
 
[    1.365234] w1-gpio connected to P8_6
 
[    1.369781] SCSI Media Changer driver v0.25
 
[    1.374694] CAN device driver interface
 
[    1.378753] CAN bus driver for Bosch D_CAN controller 1.0
 
[    1.430419] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
 
[    1.436920] davinci_mdio davinci_mdio.0: detected phy mask fffffffe
 
[    1.444580] davinci_mdio.0: probed
 
[    1.448181] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
 
[    1.457061] usbcore: registered new interface driver cdc_acm
 
[    1.463073] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
 
[    1.471618] usbcore: registered new interface driver usblp
 
[    1.477478] usbcore: registered new interface driver cdc_wdm
 
[    1.483520] usbcore: registered new interface driver uas
 
[    1.489135] Initializing USB Mass Storage driver...
 
[    1.494445] usbcore: registered new interface driver usb-storage
 
[    1.500793] USB Mass Storage support registered.
 
[    1.505767] usbcore: registered new interface driver libusual
 
[    1.512329] mousedev: PS/2 mouse device common for all mice
 
[    1.518829] dev addr = cfa08608
 
[    1.522186] pdev addr = cfa08600
 
[    1.526397] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
 
[    1.533142] omap_rtc: already running
 
[    1.537170] i2c /dev entries driver
 
[    1.541351] Linux media interface: v0.10
 
[    1.545593] Linux video capture interface: v2.00
 
[    1.550811] Driver for 1-wire Dallas network protocol.
 
[    1.557617] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
 
[    1.565521] cpuidle: using governor ladder
 
[    1.570037] cpuidle: using governor menu
 
[    1.577178] usbcore: registered new interface driver usbhid
 
[    1.583099] usbhid: USB HID core driver
 
[    1.588195] usbcore: registered new interface driver snd-usb-audio
 
[    1.595794] ALSA device list:
 
[    1.598907]  No soundcards found.
 
[    1.602966] TCP cubic registered
 
[    1.606353] Initializing XFRM netlink socket
 
[    1.610931] NET: Registered protocol family 17
 
[    1.615661] NET: Registered protocol family 15
 
[    1.620361] can: controller area network core (rev 20090105 abi 8)
 
[    1.626983] NET: Registered protocol family 29
 
[    1.631713] can: raw protocol (rev 20090105)
 
[    1.636230] Registering the dns_resolver key type
 
[    1.641296] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
 
[    1.649383] ThumbEE CPU extension supported.
 
[    1.653961] mux: Failed to setup hwmod io irq -22
 
[    1.659759] Power Management for AM33XX family
 
[    1.664672] Trying to load am335x-pm-firmware.bin (60 secs timeout)
 
[    1.671417] Copied the M3 firmware to UMEM
 
[    1.681396] registered taskstats version 1
 
[    1.686035] Detected MACID=d4:94:a1:39:ed:c
 
[    1.691589] omap_rtc omap_rtc: setting system clock to 2000-01-01 01:35:27 UTC (946690527)
 
[    1.701171] Waiting for root device /dev/mmcblk0p2...
 
[    1.741912] mmc0: host does not support reading read-only switch. assuming write-enable.
 
[    1.753051] mmc0: new high speed SDHC card at address 1234
 
[    1.759460] mmcblk0: mmc0:1234 SA04G 3.67 GiB
 
[    1.766632]  mmcblk0: p1 p2
 
[    1.830230] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
 
[    1.838897] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
 
[    1.856109] devtmpfs: mounted
 
[    1.859680] Freeing init memory: 224K
 
 
 
Welcome to �[1;35mThe Ångström Distribution�[0m!
 
 
 
[    2.390228] NET: Registered protocol family 10
 
Starting udev Coldplug all Devices...                                         
 
Starting Remount API VFS...                                                   
 
Starting Temporary Directory...                                               
 
Started Set Up Additional Binary Formats                              [�[1;32m  OK  �[0m]
 
Started Huge Pages File System                                        [�[1;32m  OK  �[0m]
 
Starting Debug File System...                                                 
 
Starting POSIX Message Queue File System...                                   
 
Starting Apply Kernel Variables...                                           
 
Starting Journal Service...                                                   
 
Started Journal Service                                                [�[1;32m  OK  �[0m]
 
Starting Load Kernel Modules...                                               
 
Starting udev Kernel Device Manager...                                       
 
Starting File System Check on Root Device...                                 
 
Started Remount API VFS                                                [�[1;32m  OK  �[0m]
 
Started Temporary Directory                                            [�[1;32m  OK  �[0m]
 
Started Debug File System                                      [    3.278259] udevd[64]: starting version 182
 
      [�[1;32m  OK  �[0m]
 
Started udev Kernel Device Manager                                    [�[1;32m  OK  �[0m]
 
Started POSIX Message Queue File System                                [�[1;32m  OK  �[0m]
 
Started Apply Kernel Variables          [    3.322021] Bluetooth: Core ver 2.16
 
                [    3.326080] NET: Registered protocol family 31
 
              [[    3.332092] Bluetooth: HCI device and connection manager initialized
 
�[1;32m  OK  �[0[    3.340179] Bluetooth: HCI socket layer initialized
 
m]
 
[    3.346710] Bluetooth: L2CAP socket layer initialized
 
[    3.352416] Bluetooth: SCO socket layer initialized
 
[    3.416198] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
 
Started udev Coldplug all Devices                                      [�[1;32m  OK  �[0m]
 
[    3.529388] NET: Registered protocol family 23
 
[    3.573181] IrCOMM protocol (Dag Brattli)
 
[    3.664764] Bluetooth: RFCOMM TTY layer initialized
 
[    3.669982] Bluetooth: RFCOMM socket layer initialized
 
[    3.675476] Bluetooth: RFCOMM ver 1.11
 
Started Load Kernel Modules                                            [�[1;32m  OK  �[0m]
 
Started Configuration File System                                      [�[1;32m  OK  �[0m]
 
Started FUSE Control File System                                      [�[1;32m  OK  �[0m]
 
systemd-fsck[65]: Angstrom-Cloud9: clean, 51905/218592 files, 304442/873534 blocks
 
Started File System Check on Root Device                              [�[1;32m  OK  �[0m]
 
Starting Remount Root FS...                                                   
 
[    4.846923] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
 
Started Remount Root FS                                                [�[1;32m  OK  �[0m]
 
Started Run pending postinsts                                          [�[1;32m  OK  �[0m]
 
Starting Load Random Seed...                                                 
 
Starting Recreate Volatile Files and Directories...                           
 
Started Machine ID first boot configure                                [�[1;32m  OK  �[0m]
 
Started Load Random Seed                                              [�[1;32m  OK  �[0m]
 
Started Recreate Volatile Files and Directories                        [�[1;32m  OK  �[0m]
 
Starting Console System Startup Logging...                                   
 
Starting Restore Sound Card State...                                         
 
Starting xinetd.service...                                                   
 
Starting Periodic Command Scheduler...                                       
 
Started Periodic Command Scheduler                                    [�[1;32m  OK  �[0m]
 
Starting Avahi mDNS/DNS-SD Stack...                                           
 
Starting Connection service...                                               
 
Starting Timestamping service...                                             
 
Started Timestamping service                                          [�[1;32m  OK  �[0m]
 
Starting Angstrom LED config...                                               
 
Started Angstrom LED config                                            [�[1;32m  OK  �[0m]
 
Starting Beaglebone cape support...                                           
 
Starting Start usb mass storage gadget...                                     
 
Started Start usb mass storage gadget                                  [�[1;32m  OK  �[0m]
 
Starting Beaglebone 101 presentation...                                       
 
Started Beaglebone 101 presentation                                    [�[1;32m  OK  �[0m]
 
Starting Cloud9 IDE...                                                       
 
Started Cloud9 IDE                                                    [�[1;32m  OK  �[0m]
 
Starting GateOne daemon...                                                   
 
Started GateOne daemon                                                [�[1;32m  OK  �[0m]
 
[    5.884307]  gadget: Mass Storage Function, version: 2009/09/11
 
[    5.890625]  gadget: Number of LUNs=1
 
[    5.894561]  lun0: LUN: removable file: /dev/mmcblk0p1
 
[    5.900024]  gadget: Mass Storage Gadget, version: 2009/09/11
 
[    5.906127]  gadget: userspace failed to provide iSerialNumber
 
[    5.912322]  gadget: g_mass_storage ready
 
[    5.916564] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
 
[    5.922241] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 2
 
[    5.930175] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
 
[    5.937377] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
 
[    5.945007] usb usb2: Product: MUSB HDRC host driver
 
 
 
[    5.950256] usb usb2: Manufacturer: Linux 3.2.25 musb-hcd
 
 
 
[    5.955963] usb usb2: SerialNumber: musb-hdrc.0
 
[    5.979034] hub 2-0:1.0: USB hub found
 
[    5.983123] hub 2-0:1.0: 1 port detected
 
[    5.987304] musb_g_ep0_irq 720: SetupEnd came in a wrong ep0stage setup
 
Started SSH Key Generation                                            [�[1;32m  OK  �[0m]
 
Starting Login Service...                                                     
 
Starting BeagleBone Tester...                                                 
 
Started BeagleBone Tester                                              [�[1;32m  OK  �[0m]
 
Starting Permit User Sessions...                                             
 
Starting D-Bus System Message Bus...                                         
 
Started Console System Startup Logging                                [�[1;32m  OK  �[0m]
 
Started Restore Sound Card State                                      [�[1;32m  OK  �[0m]
 
Started Permit User Sessions    [    6.350128]  gadget: high-speed config #1: Linux File-Backed Storage
 
                                      [�[1;32m  OK  �[0m]
 
Starting Getty on tty1...                                                     
 
Started Getty on tty1                                                  [�[1;32m  OK  �[0m]
 
Starting Serial Getty on ttyO0...                                             
 
Started Serial Getty on ttyO0  Started D-Bus System Message Bus                                      [�[1;32m  OK  �[0m]
 
xinetd[215]: Starting internet superserver: xinetd.
 
Started xinetd.service                                                [�[1;32m  OK  �[0m]
 
Starting pvr-init.service...                                                 
 
Started Beaglebone cape support                                        [�[1;32m  OK  �[0m]
 
Started pvr-init.service                                              [�[1;32m  OK  �[0m]
 
Started Avahi mDNS/DNS-SD Stack                                        [�[1;32m  OK  �[0m]
 
Started Connection service                                            [�[1;32m  OK  �[0m]
 
Started Login Service                                                  [�[1;32m  OK  �[0m]
 
[    7.832397] ip_tables: (C) 2000-2006 Netfilter Core Team
 
[    8.227478]
 
[    8.227478] CPSW phy found : id is : 0x7c0f1
 
[    8.234436] PHY 0:01 not found
 
[    8.262908] ADDRCONF(NETDEV_UP): eth0: link is not ready
 
Starting Gnome Display Manager...                                             
 
Started Gnome Display Manager                                          [�[1;32m  OK  �[0m]
 
[  12.222229] PHY: 0:00 - Link is Up - 100/Full
 
[  12.227050] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 
 
 
.---O---.                                         
 
|      |                  .-.          o o       
 
|  |  |-----.-----.-----.| |  .----..-----.-----.
 
|      |    | __  |  ---'| '--.|  .-'|    |    |
 
|  |  |  |  |    |---  ||  --'|  |  |  '  | | | |
 
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
 
                -'  |
 
                '---'
 
 
 
The Angstrom Distribution beaglebone ttyO0
 
 
 
Angstrom v2012.05 - Kernel 3.2.25
 
  
beaglebone login: root
 
Last login: Tue Aug 14 10:24:19 UTC 2012 on ttyO0
 
root@beaglebone:~#
 
</pre>
 
 
=== Stopping kernel ===
 
  
<pre>
+
bone$ '''halt'''
shutdown -r now
+
reboot
beagle$
+
          Stopping Entropy daemon using the HAVEGE algorithm...
Stopping /etc/machine-id...                                                  
+
[OK] Stopped target Sound Card.
Stopping Timestamping service...                                              
+
[OK] Stopped target Timers.
Stopping Angstrom LED config...                                              
+
[OK] Reached target Unmount All Filesystems.
Stopping Beaglebone cape support...                                          
+
          Starting Store Sound Card State...
Stopping Start usb mass storage gadget...                                    
+
[OK] Stopped Daily Cleanup of Temporary Directories.
Stopping Gnome Display Manager...                                            
+
[OK] Stopped target System Time Synchronized.
Stopping Periodic Command Scheduler...                                        
+
[OK] Stopped target Graphical Interface.
Stopping Avahi mDNS/DNS-SD Stack...                                          
+
[OK] Stopped target Multi-User System.
Stopping Connection service...                                                
+
          Stopping Regular background program processing daemon...
Stopping BeagleStopping pvr-init.service...                                                  
+
          Stopping Avahi mDNS/DNS-SD Stack...
Starting Store Sound Card State...                                            
+
          Stopping OpenBSD Secure Shell server...
Starting Save Random Seed...                                                  
+
[OK] Stopped target Login Prompts.
Stopped Periodic Command Scheduler                                    [�[1;32m  OK  [0m]
+
          Stopping Serial Getty on ttyGS0...
Stopped Cloud9 IDE                                                    [�[1;32m  OK  [0m]
+
          Stopping Getty on tty1...         Stopping Serial Getty on ttyS0...
Stopped Login Service                                                 [[1;32m OK  [0m]
+
          Stopping System Logging Service...
Stopped Serial Getty on ttyO0                                          [�[1;32m  OK �[0m]
+
          Stopping Login Service...
Stopped Getty on tty1                                                  [�[1;32m  OK  [0m]
+
          Stopping Bonescript autorun...
Stopped GateOne daemon                                                 [�[1;32m  OK  [0m]
+
          Stopping LSB: Start busybox udhcpd at boot time...
Stopped Beaglebone 101 presentation                                    [�[1;32m  OK �[0m]
+
          Stopping LSB: Advanced IEEE 802.11 management daemon...
Stopped Gnome Display Manager                                          [�[1;32m  OK �[0m]
+
          Stopping LSB: set CPUFreq kernel parameters...
Stopped /etc/mac[  832.455993] musb-hdrc musb-hdrc.0: remove, state 1
+
[OK] Stopped Avahi mDNS/DNS-SD Stack.
hine-id        [ 832.461822] usb usb2: USB disconnect, device number 1
+
[OK] Stopped Entropy daemon using the HAVEGE algorithm.
                                      [�[1;32m  OK �[0m]
+
  [OK] Stopped Bonescript autorun.
Stopping Permit User Sessions...                                              
+
[OK] Stopped Regular background program processing daemon.
Started Save Random Seed                                              [[1;32m OK  [0m]
+
  [OK] Stopped Login Service.
Stopped D-Bus Sy[ 832.563262] musb-hdrc musb-hdrc.0: USB bus 2 deregistered
+
[OK] Stopped OpenBSD Secure Shell server.
stem Message Bus                                      [�[1;32m  OK  [0m]
+
[OK] Stopped Getty on tty1.
Failed to start Store Sound Card State                                [�[1;31mFAILED�[0m]
+
  [OK] Stopped System Logging Service.
See 'systemctl status alsa-store.service' for details.                        
+
  [OK] Stopped Serial Getty on ttyS0.
Stopped Start usb mass storage gadget                                  [�[1;32m  OK �[0m]
+
[OK] Stopped Serial Getty on ttyGS0.
Stopped pvr-init.service                                              [�[1;32m  OK  [0m]
+
[OK] Started Store Sound Card State.
Stopped Permit User Sessions                                          [�[1;32m  OK  [0m]
+
  [OK] Stopped LSB: Advanced IEEE 802.11 management daemon.
Stopping xinetd.service...                                                   
+
[OK] Stopped LSB: Start busybox udhcpd at boot time.
Stopped Avahi mDNS/DNS-SD Stack                                       [�[1;32m  OK  [0m]
+
  [OK] Stopped LSB: set CPUFreq kernel parameters.
Stopped xinetd.service                                                [�[1;32m  OK  [0m]
+
          Stopping LSB: Load kernel modules needed to enable cpufreq scaling...
Stopped Timestamping service                                          [�[1;32m  OK �[0m]
+
[OK] Removed slice system-serial\x2dgetty.slice.
Stopped Beaglebone cape support                                        [�[1;32m  OK �[0m]
+
[OK] Stopped /etc/rc.local Compatibility.
Stopped Angstrom LED config                                            [�[1;32m  OK �[0m]
+
  [OK] Stopped target Network is Online.
xinetd[360]: Stopping internet superserver: xinetd.
+
          Stopping Permit User Sessions...
[ 833.796325] Bridge firewalling registered
+
[OK] Removed slice system-getty.slice.
Stopped Connection service                                            [�[1;32m  OK �[0m]
+
[OK] Stopped Permit User Sessions.
Starting Console System Reboot Logging...                                    
+
  [OK] Stopped LSB: Load kernel modules needed to enable cpufreq scaling.
Stopping Apply Kernel Variables...                                            
+
  [OK] Stopped target Remote File Systems.
Stopped Apply Kernel Variables                                        [�[1;32m  OK �[0m]
+
[OK] Stopped target Remote File Systems (Pre).
Stopping Load Kernel Modules...                                              
+
[OK] Stopped target Network.
Stopped Load Kernel Modules                                            [[1;32m  OK  [0m]
+
          Stopping Connection service...
Starting Notify Audit System and Update UTMP about System Shutdown...         
+
          Stopping Raise network interfaces...
Stopping Remount API VFS...                                                   
+
          Stopping WPA supplicant...
Stopped Remount API VFS                                                [�[1;32m  OK  [0m]
+
  [OK] Stopped WPA supplicant.
Stopping Temporary Directory...                                              
+
[OK] Stopped Connection service.
Stopping Remount Root FS...                                                  
+
          Stopping D-Bus System Message Bus...
Stopped Remount Root FS                                                [�[1;32m  OK  [0m]
+
[OK] Stopped D-Bus System Message Bus.
Started Console System Reboot Logging                                  [�[1;32m  OK  [0m]
+
[OK] Stopped target Basic System.
Stopped Temporary Directory                                            [[1;32m  OK  �[0m]
+
  [OK] Stopped target Slices.
Sending SIGTERM to remaining processes...
+
[OK] Removed slice User and Session Slice.
Sending SIGKILL to remaining processes...
+
  [OK] Stopped target Sockets.
Unmounting file systems.
+
[OK] Closed Avahi mDNS/DNS-SD Stack Activation Socket.
Unmounted /dev/mqueue.
+
[OK] Closed Syslog Socket.
Unmounted /sys/kernel/debug.
+
  [OK] Closed cloud9.socket.
[ 873.316955] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
+
[OK] Closed bonescript.socket.
Disabling swaps.
+
  [OK] Closed node-red.socket.
Detaching loop devices.
+
[OK] Stopped target Paths.
Detaching DM devices.
+
[OK] Stopped Dispatch Password Requests to Console Directory Watch.
873.362060] musb-hdrc musb-hdrc.1: remove, state 1
+
[OK] Stopped Forward Password Requests to Wall Directory Watch.
[ 873.367248] usb usb1: USB disconnect, device number 1
+
[OK] Closed D-Bus System Message Bus Socket.
[ 873.373565] musb-hdrc musb-hdrc.1: USB bus 1 deregistered
+
  [OK] Stopped target System Initialization.
[ 873.379669] Restarting system.
+
          Stopping Update UTMP about System Boot/Shutdown...
</pre>
+
          Stopping Load/Save Random Seed...
 +
[OK] Stopped target Encrypted Volumes.
 +
          Stopping Network Time Synchronization...
 +
[OK] Stopped target Swap.
 +
[OK] Stopped Network Time Synchronization.
 +
[OK] Stopped Load/Save Random Seed.
 +
  [OK] Stopped Update UTMP about System Boot/Shutdown.
 +
[OK] Stopped Create Volatile Files and Directories.
 +
[OK] Stopped Raise network interfaces.
 +
[OK] Stopped target Local File Systems.
 +
  [OK] Stopped target Local File Systems (Pre).
 +
[OK] Stopped Remount Root and Kernel File Systems.
 +
[OK] Stopped Create Static Device Nodes in /dev.
 +
[OK] Stopped Apply Kernel Variables.
 +
  [OK] Stopped Load Kernel Modules.
 +
[OK] Reached target Shutdown.
 +
  [   88.816418] watchdog watchdog0: watchdog did not stop!
 +
[   88.858414] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
 +
[  88.887621] systemd-journald[537]: Received SIGTERM from PID 1 (systemd-shutdow).
 +
[  88.911831] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
 +
[  88.936982] systemd-shutdown[1]: Hardware watchdog 'OMAP Watchdog', version 0
 +
[  88.946448] systemd-shutdown[1]: Unmounting file systems.
 +
[  88.953475] systemd-shutdown[1]: Remounting '/' read-only with options 'errors=remount-ro,data=ordered'.
 +
[  94.188368] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro,data=ordered
 +
[  94.226688] systemd-shutdown[1]: Remounting '/' read-only with options 'errors=remount-ro,data=ordered'.
 +
[   94.240075] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro,data=ordered
 +
[  94.248286] systemd-shutdown[1]: All filesystems unmounted.
 +
[  94.254287] systemd-shutdown[1]: Deactivating swaps.
 +
[  94.260309] systemd-shutdown[1]: All swaps deactivated.
 +
[  94.266144] systemd-shutdown[1]: Detaching loop devices.
 +
[  94.278454] systemd-shutdown[1]: All loop devices detached.
 +
[  94.284704] systemd-shutdown[1]: Detaching DM devices.
 +
[  94.291876] systemd-shutdown[1]: All DM devices detached.
 +
  [  94.319684] systemd-shutdown[1]: Failed to read reboot parameter file: No such file or directory
 +
[  94.329474] systemd-shutdown[1]: Rebooting.
 +
[  94.338711] musb-hdrc musb-hdrc.1.auto: remove, state 4
 +
[   94.344523] usb usb1: USB disconnect, device number 1
 +
[   94.351943] musb-hdrc musb-hdrc.1.auto: USB bus 1 deregistered
 +
[   94.382034] reboot: Restarting system
  
 
== systemd ==
 
== systemd ==

Latest revision as of 12:04, 1 September 2020

thumb‎ Embedded Linux Class by Mark A. Yoder


Up to this point we've always booted the Beagle into Linux and worked from there. Now it's time to learn what has to happen before we can run Linux. To do this you need to look at the output of the serial port so see the boot sequence.

Booting Up

Bootloader.jpg

You need to attach a 3.3V FTDI cable to see the boot sequence.

FTDI cable

BeagleBone Black

FTDI connector FTDI connector

Look for the black lead which is marked with a little triangle. This connects to the pin with the white dot next to it.

BeagleBone Blue

FTDI to JST cable Blue UT0 connector

On the FDTI connector look for the black lead which is marked with a little triangle. This connects to black lead on the JST cable. Then plug the JST cable into UT0 on the Blue.

Both

Boot up your bone and connect to the serial port using the screen command. Hit return and log in. You may need to give yourself access to /dev/ttyUSB0 before running screen.

host$ ls -ls /dev/ttyUSB0 
0 crw-rw---- 1 root dialout 188, 0 Sep 22 09:36 /dev/ttyUSB0
host$ sudo adduser $USER dialout
host$ screen /dev/ttyUSB0 115200

Debian GNU/Linux 8 yoder-debian-bone ttyS0
BeagleBoard.org Debian Image 2016-08-28
Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian
default username:password is [debian:temppwd]
The IP Address for usb0 is: 192.168.7.2

debian-bone login: debian
debian@beaglebone:~# 

Run the following on your host to learn how to log data with screen

host$ man screen

Turn on logging and capture the boot and shutdown data that is presented on this page. Keep it in a file where you can refer to it later.

Shutdown

Now shutdown and be ready to hit return when you get the u-boot prompt.

bone$ reboot
[   94.382034] reboot: Restarting system

Only one message when the kernel shuts down in quiet mode.

U-Boot Starting

U-Boot SPL 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00)
Trying to boot from MMC
bad magic
U-Boot 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00 -0500), Build: jenkins-github_Bootloader-Builder-394
      Watchdog enabled
I2C:   ready
DRAM:  512 MiB
Reset Source: Global warm SW reset has occurred.
Reset Source: Power-on reset has occurred.
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment
Net:   <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether

Press SPACE to abort autoboot in 2 seconds
=>

U-Boot help

You are now in the u-boot boot loader. Try help

=> help
?       - alias for 'help'
askenv  - get environment variables from stdin
base    - print or set address offset
bdinfo  - print Board Info structure
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm   - boot application image from memory
bootp   - boot image via network using BOOTP/TFTP protocol
bootvx  - Boot vxWorks from an ELF image
bootz   - boot Linux zImage image from memory
cmp     - memory compare
coninfo - print console devices and information
cp      - memory copy
crc32   - checksum calculation
dfu     - Device Firmware Upgrade
dhcp    - boot image via network using DHCP/TFTP protocol
dm      - Driver model low level access
echo    - echo args to console
editenv - edit environment variable
eeprom  - EEPROM sub-system
env     - environment handling commands
exit    - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls  - list files in a directory (default /)
ext4load- load binary file from a Ext4 filesystem
ext4ls  - list files in a directory (default /)
ext4size- determine a file's size
ext4write- create a file in the root directory
false   - do nothing, unsuccessfully
fastboot- use USB Fastboot protocol
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
fatsize - determine a file's size
fatwrite- write file into a dos filesystem
fdt     - flattened device tree utility commands
fstype  - Look up a filesystem type
go      - start application at address 'addr'
gpio    - query and control gpio pins
gpt     - GUID Partition Table
help    - print command description/usage
i2c     - I2C sub-system
iminfo  - print header information for application image
imxtract- extract a part of a multi-image
itest   - return true/false on integer compare
load    - load binary file from a filesystem
loadb   - load binary file over serial line (kermit mode)
loads   - load S-Record file over serial line
loadx   - load binary file over serial line (xmodem mode)
loady   - load binary file over serial line (ymodem mode)
loop    - infinite loop on address range
ls      - list files in a directory (default /)
md      - memory display
mdio    - MDIO utility commands
mii     - MII utility commands
mm      - memory modify (auto-incrementing address)
mmc     - MMC sub system
mmcinfo - display MMC info
mw      - memory write (fill)
nfs     - boot image via network using NFS protocol
nm      - memory modify (constant address)
part    - disk partition related commands
ping    - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
pxe     - commands to get and boot from pxe files
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
save    - save file to a filesystem
setenv  - set environment variables
sf      - SPI flash sub-system
showvar - print local hushshell variables
size    - determine a file's size
sleep   - delay execution for some time
source  - run script from memory
spl     - SPL configuration
sspi    - SPI utility command
sysboot - command to get and boot from syslinux files
test    - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true    - do nothing, successfully
usb     - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version

Discovering what boot does

Your goal is to discover what happens when the boot command is run.

U-Boot# help boot
boot - boot default, i.e., run 'bootcmd'
U-boot# print bootcmd
bootcmd=run findfdt; run distro_bootcmd

Figure out what's happening above by printing findfdt and distro_bootcmd

U-Boot print

It might be helpful to print the contents of all the variables and save it for future reference.

=> print
arch=arm
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=PARTUUID=${uuid} ro rootfstype=${mmcrootfstype} ${cmdline}
args_mmc_old=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=${oldroot} ro rootfstype=${mmcrootfstype} ${cmdline}
args_mmc_uuid=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=UUID=${uuid} ro rootfstype=${mmcrootfstype} ${cmdline}
args_netinstall=setenv bootargs ${netinstall_bootargs} ${optargs} ${cape_disable} ${cape_enable} root=/dev/ram rw ${cmdline}
args_uenv_root=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=${uenv_root} ro rootfstype=${mmcrootfstype} ${cmdline}
autoconf=off
baudrate=115200
board=am335x
board_name=A335BNLT
board_rev=0A5C
boot=${interface} dev ${mmcdev}; if ${interface} rescan; then gpio set 54;setenv bootpart ${mmcdev}:1; if test -e ${interface} ${bootpart} /etc/fstab; then setenv mmcpart 1;fi; echo Checking for: /uEnv.txt ...;if test -e ${interface} ${bootpart} /uEnv.txt; then if run loadbootenv; then gpio set 55;echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n ${cape}; then if test -e ${interface} ${bootpart} ${fdtdir}/${fdtbase}-${cape}.dtb; then setenv fdtfile ${fdtbase}-${cape}.dtb; fi; echo using: $fdtfile...; fi; echo Checking if uenvcmd is set ...;if test -n ${uenvcmd}; then gpio set 56; echo Running uenvcmd ...;run uenvcmd;fi;echo Checking if client_ip is set ...;if test -n ${client_ip}; then if test -n ${dtb}; then setenv fdtfile ${dtb};echo using ${fdtfile} ...;fi;gpio set 56; if test -n ${uname_r}; then echo Running nfsboot_uname_r ...;run nfsboot_uname_r;fi;echo Running nfsboot ...;run nfsboot;fi;fi; echo Checking for: /${script} ...;if test -e ${interface} ${bootpart} /${script}; then gpio set 55;setenv scriptfile ${script};run loadbootscript;echo Loaded script from ${scriptfile};gpio set 56; run bootscript;fi; echo Checking for: /boot/${script} ...;if test -e ${interface} ${bootpart} /boot/${script}; then gpio set 55;setenv scriptfile /boot/${script};run loadbootscript;echo Loaded script from ${scriptfile};gpio set 56; run bootscript;fi; echo Checking for: /boot/uEnv.txt ...;for i in 1 2 3 4 5 6 7 ; do setenv mmcpart ${i};setenv bootpart ${mmcdev}:${mmcpart};if test -e ${interface} ${bootpart} /boot/uEnv.txt; then gpio set 55;load ${interface} ${bootpart} ${loadaddr} /boot/uEnv.txt;env import -t ${loadaddr} ${filesize};echo Loaded environment from /boot/uEnv.txt;if test -n ${cape}; then echo debug: [cape=${cape}] ... ;setenv fdtfile ${fdtbase}-${cape}.dtb; echo Using: dtb=${fdtfile} ...;fi; if test -n ${dtb}; then echo debug: [dtb=${dtb}] ... ;setenv fdtfile ${dtb};echo Using: dtb=${fdtfile} ...;fi;echo Checking if uname_r is set in /boot/uEnv.txt...;if test -n ${uname_r}; then gpio set 56; setenv oldroot /dev/mmcblk${mmcdev}p${mmcpart};echo Running uname_boot ...;run uname_boot;fi;fi;done;fi;
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}extlinux/extlinux.conf
boot_fdt=try
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_targets=mmc0 legacy_mmc0 mmc1 legacy_mmc1 nand0 pxe dhcp 
bootcmd=run findfdt; run distro_bootcmd
bootcmd_dhcp=if dhcp ${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi
bootcmd_legacy_mmc0=gpio clear 56; gpio clear 55; gpio clear 54; gpio set 53; setenv interface mmc; setenv mmcdev 0; setenv bootpart 0:1 ; run boot
bootcmd_legacy_mmc1=gpio clear 56; gpio clear 55; gpio clear 54; gpio set 53; setenv interface mmc; setenv mmcdev 1; setenv bootpart 1:1 ; run boot
bootcmd_mmc0=setenv devnum 0; run mmc_boot
bootcmd_mmc1=setenv devnum 1; run mmc_boot
bootcmd_nand=run nandboot
bootcmd_pxe=dhcp; if pxe get; then pxe boot; fi
bootcount=8
bootdelay=2
bootdir=/boot
bootenv=uEnv.txt
bootfile=zImage
bootm_size=0x10000000
bootpart=0:2
bootscript=echo Running bootscript from mmc${bootpart} ...; source ${loadaddr}
console=ttyO0,115200n8
cpu=armv7
device=eth0
dfu_alt_info_emmc=rawemmc raw 0 3751936
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;MLO.raw raw 0x100 0x100;u-boot.img.raw raw 0x300 0x400;spl-os-args.raw raw 0x80 0x80;spl-os-image.raw raw 0x900 0x2000;spl-os-args fat 0 1;spl-os-image fat 0 1;u-boot.img fat 0 1;uEnv.txt fat 0 1
dfu_alt_info_ram=kernel ram 0x80200000 0xD80000;fdt ram 0x80F80000 0x80000;ramdisk ram 0x81000000 0x4000000
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
eth1addr=c8:a0:30:b7:f9:71
ethact=cpsw
ethaddr=c8:a0:30:b7:f9:6f
failumsboot=echo; echo FAILSAFE: U-Boot UMS (USB Mass Storage) enabled, media now available over the usb slave port ...; ums 0 ${interface} 1;
fdt_addr_r=0x88000000
fdtaddr=0x88000000
fdtfile=undefined
findfdt=if test $board_name = A335BONE; then setenv fdtfile am335x-bone.dtb; setenv fdtbase am335x-bone; fi; if test $board_name = A335BNLT; then if test $board_rev = BLA0; then setenv fdtfile am335x-boneblue.dtb; setenv fdtbase am335x-boneblue; elif test $board_rev = BBG1; then setenv fdtfile am335x-bonegreen.dtb; setenv fdtbase am335x-bonegreen; elif test $board_rev = GW1A; then setenv fdtfile am335x-bonegreen-wireless.dtb; setenv fdtbase am335x-bonegreen-wireless; elif test $board_rev = AIA0; then setenv fdtfile am335x-abbbi.dtb; setenv fdtbase am335x-abbbi; elif test $board_rev = EIA0; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; elif test $board_rev = SE0A; then setenv fdtfile am335x-sancloud-bbe.dtb; setenv fdtbase am335x-sancloud-bbe; elif test $board_rev = ME06; then setenv fdtfile am335x-bonegreen.dtb; setenv fdtbase am335x-bonegreen; elif test $board_rev = M10A; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; elif test $board_rev = GH01; then setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; else setenv fdtfile am335x-boneblack.dtb; setenv fdtbase am335x-boneblack; fi; fi; if test $board_name = A33515BB; then setenv fdtfile am335x-evm.dtb; fi; if test $board_name = A335X_SK; then setenv fdtfile am335x-evmsk.dtb; fi; if test $fdtfile = undefined; then echo WARNING: Could not determine device tree to use; fi; 
finduuid=part uuid ${interface} ${bootpart} uuid
gw_ip=192.168.1.1
importbootenv=echo Importing environment from ${interface} ...; env import -t -r $loadaddr $filesize
kernel_addr_r=0x82000000
loadaddr=0x82000000
loadbootenv=load ${interface} ${bootpart} ${loadaddr} ${bootenv}
loadbootscript=load ${interface} ${bootpart} ${loadaddr} ${scriptfile};
loadfdt=echo loading ${fdtdir}/${fdtfile} ...; load ${interface} ${bootpart} ${fdtaddr} ${fdtdir}/${fdtfile}
loadimage=load ${interface} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
loadramdisk=load ${interface} ${mmcdev} ${rdaddr} ramdisk.gz
loadrd=load ${interface} ${bootpart} ${rdaddr} ${bootdir}/${rdfile}; setenv rdsize ${filesize}
mmc_boot=if mmc dev ${devnum}; then setenv devtype mmc; run scan_dev_for_boot_part; fi
mmcboot=${interface} dev ${mmcdev}; if ${interface} rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootscript; then run bootscript;else if run loadbootenv; then echo Loaded environment from ${bootenv};run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;if run loadimage; then run mmcloados;fi;fi ;fi;
mmcdev=0
mmcloados=run args_mmc; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loadaddr} - ${fdtaddr}; else if test ${boot_fdt} = try; then bootz; else echo WARN: Cannot load the DT; fi; fi; else bootz; fi;
mmcrootfstype=ext4 rootwait
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
netboot=echo Booting from network ...; setenv autoload no; dhcp; run netloadimage; run netloadfdt; run netargs; bootz ${loadaddr} - ${fdtaddr}
netloadfdt=tftp ${fdtaddr} ${fdtfile}
netloadimage=tftp ${loadaddr} ${bootfile}
netmask=255.255.255.0
nfs_options=,vers=3
nfsargs=setenv bootargs console=${console} ${optargs} ${cape_disable} ${cape_enable} root=/dev/nfs rw rootfstype=${nfsrootfstype} nfsroot=${nfsroot} ip=${ip} ${cmdline}
nfsboot=echo Booting from ${server_ip} ...; setenv nfsroot ${server_ip}:${root_dir}${nfs_options}; setenv ip ${client_ip}:${server_ip}:${gw_ip}:${netmask}:${hostname}:${device}:${autoconf}; setenv autoload no; setenv serverip ${server_ip}; setenv ipaddr ${client_ip}; tftp ${loadaddr} ${tftp_dir}${bootfile}; tftp ${fdtaddr} ${tftp_dir}dtbs/${fdtfile}; run nfsargs; bootz ${loadaddr} - ${fdtaddr}
nfsboot_uname_r=echo Booting from ${server_ip} ...; setenv nfsroot ${server_ip}:${root_dir}${nfs_options}; setenv ip ${client_ip}:${server_ip}:${gw_ip}:${netmask}:${hostname}:${device}:${autoconf}; setenv autoload no; setenv serverip ${server_ip}; setenv ipaddr ${client_ip}; tftp ${loadaddr} ${tftp_dir}vmlinuz-${uname_r}; tftp ${fdtaddr} ${tftp_dir}dtbs/${uname_r}/${fdtfile}; run nfsargs; bootz ${loadaddr} - ${fdtaddr}
nfsopts=nolock
nfsrootfstype=ext4 rootwait fixrtc
partitions=uuid_disk=${uuid_gpt_disk};name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}
pxefile_addr_r=0x80100000
ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot} rootfstype=${ramrootfstype}
ramboot=echo Booting from ramdisk ...; run ramargs; bootz ${loadaddr} ${rdaddr} ${fdtaddr}
ramdisk_addr_r=0x88080000
ramroot=/dev/ram0 rw
ramrootfstype=ext2
rdaddr=0x88080000
root_dir=/home/userid/targetNFS
rootpath=/export/rootfs
scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done
scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}extlinux/extlinux.conf; then echo Found ${prefix}extlinux/extlinux.conf; run boot_extlinux; echo SCRIPT FAILED: continuing...; fi
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi; done
script=boot.scr
scriptaddr=0x80000000
scriptfile=${script}
server_ip=192.168.1.100
soc=am33xx
spiargs=setenv bootargs console=${console} ${optargs} root=${spiroot} rootfstype=${spirootfstype}
spiboot=echo Booting from spi ...; run spiargs; sf probe ${spibusno}:0; sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; bootz ${loadaddr}
spibusno=0
spiimgsize=0x362000
spiroot=/dev/mtdblock4 rw
spirootfstype=jffs2
spisrcaddr=0xe0000
static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
stderr=ns16550_serial
stdin=ns16550_serial
stdout=ns16550_serial
uname_boot=setenv bootdir /boot; setenv bootfile vmlinuz-${uname_r}; if test -e ${interface} ${bootpart} ${bootdir}/${bootfile}; then echo loading ${bootdir}/${bootfile} ...; run loadimage;setenv fdtdir /boot/dtbs/${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /usr/lib/linux-image-${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /lib/firmware/${uname_r}/device-tree; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtb-${uname_r}; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtbs; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot/dtb; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else setenv fdtdir /boot; if test -e ${interface} ${bootpart} ${fdtdir}/${fdtfile}; then run loadfdt;else if test -e ${interface} ${bootpart} ${fdtfile}; then run loadfdt;else echo; echo unable to find [dtb=${fdtfile}] did you name it correctly? ...; run failumsboot;fi;fi;fi;fi;fi;fi;fi;fi; setenv rdfile initrd.img-${uname_r}; if test -e ${interface} ${bootpart} ${bootdir}/${rdfile}; then echo loading ${bootdir}/${rdfile} ...; run loadrd;if test -n ${netinstall_enable}; then run args_netinstall; run message;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;if test -n ${uenv_root}; then run args_uenv_root;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;if test -n ${uuid}; then run args_mmc_uuid;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; fi;run args_mmc_old;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}] ... ;bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr}; else if test -n ${uenv_root}; then run args_uenv_root;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} - ${fdtaddr}] ... ;bootz ${loadaddr} - ${fdtaddr}; fi;run args_mmc_old;echo debug: [${bootargs}] ... ;echo debug: [bootz ${loadaddr} - ${fdtaddr}] ... ;bootz ${loadaddr} - ${fdtaddr}; fi;fi;
usbnet_devaddr=c8:a0:30:b7:f9:71
vendor=ti
ver=U-Boot 2016.03-00001-g9a81f4a (May 27 2016 - 12:25:00 -0500)

Environment size: 13813/131068 bytes

Based on your investigation above, predict what will happen at boot time, then boot and check yourself.

U-boot boot

=> boot
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
gpio: pin 56 (gpio 56) value is 0
gpio: pin 55 (gpio 55) value is 0
gpio: pin 54 (gpio 54) value is 0
gpio: pin 53 (gpio 53) value is 1

switch to partitions #0, OK
mmc0 is current device

gpio: pin 54 (gpio 54) value is 1
Checking for: /uEnv.txt ...
1179 bytes read in 9 ms (127.9 KiB/s)

gpio: pin 55 (gpio 55) value is 1
Loaded environment from uEnv.txt
Importing environment from mmc ...
Checking if uenvcmd is set ...

gpio: pin 56 (gpio 56) value is 1
Running uenvcmd ...
1198 bytes read in 29 ms (40 KiB/s)
debug: [/boot/vmlinuz-4.4.19-ti-r41] ...
7792440 bytes read in 453 ms (16.4 MiB/s)
debug: [/boot/initrd.img-4.4.19-ti-r41] ...
5076716 bytes read in 299 ms (16.2 MiB/s)
debug: [/boot/dtbs/4.4.19-ti-r41/am335x-boneblack.dtb] ...
61581 bytes read in 108 ms (556.6 KiB/s)
debug: [console=tty0 console=ttyO0,115200n8 root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M quiet cape_universal=enable] ...
debug: [bootz 0x82000000 0x88080000:4d76ec 0x88000000] ...

Kernel image @ 0x82000000 [ 0x000000 - 0x76e738 ]

## Flattened Device Tree blob at 88000000
   Booting using the fdt blob at 0x88000000
   Using Device Tree in place at 88000000, end 8801208c

Starting kernel ...

[    0.001215] clocksource_probe: no matching clocksources found
[    2.023663] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[    2.202865] omap_voltage_late_init: Voltage driver support not added
[    2.214827] PM: Cannot get wkup_m3_ipc handle
[    2.324848] bone_capemgr bone_capemgr: slot #0: No cape found
[    2.368844] bone_capemgr bone_capemgr: slot #1: No cape found
[    2.412841] bone_capemgr bone_capemgr: slot #2: No cape found
[    2.456839] bone_capemgr bone_capemgr: slot #3: No cape found
Loading, please wait...
rootfs: clean, 119150/217728 files, 640230/870144 blocks
[   23.137182] davinci-mcasp 4803c000.mcasp: invalid tdm slots: 0


Debian GNU/Linux 8 yoder-debian-bone ttyS0

BeagleBoard.org Debian Image 2016-08-28

Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

default username:password is [debian:temppwd]

The IP Address for usb0 is: 192.168.7.2
yoder-debian-bone login:

Kernel boot messages

You can see more details about booting if you edit /boot/uEnv.txt and find the line

cmdline=coherent_pool=1M quiet cape_universal=enable

Remove quiet and reboot. Here's what I got with quiet removed.

Starting kernel

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.19-ti-r41 (root@a5-imx6q-wandboard-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Wed Aug 24 16:09:37 UTC 2016
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: TI AM335x BeagleBone Black
[    0.000000] cma: Reserved 24 MiB at 0x9e000000
[    0.000000] Memory policy: Data cache writeback
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.0 (sgx neon )
[    0.000000] PERCPU: Embedded 13 pages/cpu @df923000 s24320 r8192 d20736 u53248
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 129408
[    0.000000] Kernel command line: console=tty0 console=ttyO0,115200n8 root=/dev/mmcblk0p1 rootfstype=ext4 rootwait coherent_pool=1M cape_universal=enable
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 473844K/522240K available (7304K kernel code, 902K rwdata, 3684K rodata, 600K init, 907K bss, 23820K reserved, 24576K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xe0800000 - 0xff800000   ( 496 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf800000 - 0xbfe00000   (   6 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0ac3350   (10989 kB)
[    0.000000]       .init : 0xc0ac4000 - 0xc0b5a000   ( 600 kB)
[    0.000000]       .data : 0xc0b5a000 - 0xc0c3bbf0   ( 903 kB)
[    0.000000]        .bss : 0xc0c3e000 - 0xc0d20e68   ( 908 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	Build-time adjustment of leaf fanout to 32.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000012] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000032] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000043] OMAP clocksource: timer1 at 24000000 Hz
[    0.001214] clocksource_probe: no matching clocksources found
[    0.001402] Console: colour dummy device 80x30
[    0.002177] console [tty0] enabled
[    0.002213] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[    0.002239] This ensures that you still see kernel messages. Please
[    0.002263] update your kernel commandline.
[    0.002296] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[    0.046935] pid_max: default: 32768 minimum: 301
[    0.047087] Security Framework initialized
[    0.047116] Yama: becoming mindful.
[    0.047161] AppArmor: AppArmor disabled by boot time parameter
[    0.047334] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.047367] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.048166] Initializing cgroup subsys io
[    0.048221] Initializing cgroup subsys memory
[    0.048280] Initializing cgroup subsys devices
[    0.048313] Initializing cgroup subsys freezer
[    0.048344] Initializing cgroup subsys net_cls
[    0.048374] Initializing cgroup subsys perf_event
[    0.048403] Initializing cgroup subsys net_prio
[    0.048440] Initializing cgroup subsys pids
[    0.048506] CPU: Testing write buffer coherency: ok
[    0.048576] ftrace: allocating 34016 entries in 67 pages
[    0.133468] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[    0.133622] Setting up static identity map for 0x80008240 - 0x8000828c
[    0.137064] Brought up 1 CPUs
[    0.137118] SMP: Total of 1 processors activated (995.32 BogoMIPS).
[    0.137140] CPU: All CPU(s) started in SVC mode.
[    0.138570] devtmpfs: initialized
[    0.158429] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    0.176605] omap_hwmod: debugss: _wait_target_disable failed
[    0.230414] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.232593] xor: measuring software checksum speed
[    0.270919]    arm4regs  :  1221.000 MB/sec
[    0.310919]    8regs     :  1094.000 MB/sec
[    0.350916]    32regs    :  1093.000 MB/sec
[    0.390917]    neon      :  1755.000 MB/sec
[    0.390937] xor: using function: neon (1755.000 MB/sec)
[    0.391049] pinctrl core: initialized pinctrl subsystem
[    0.393007] NET: Registered protocol family 16
[    0.396529] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.397763] cpuidle: using governor ladder
[    0.397810] cpuidle: using governor menu
[    0.402881] OMAP GPIO hardware version 0.1
[    0.414683] No ATAGs?
[    0.414725] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.415433] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[    0.415479] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[    0.490981] raid6: int32x1  gen()   263 MB/s
[    0.559004] raid6: int32x1  xor()   240 MB/s
[    0.627080] raid6: int32x2  gen()   375 MB/s
[    0.694977] raid6: int32x2  xor()   280 MB/s
[    0.763039] raid6: int32x4  gen()   391 MB/s
[    0.830943] raid6: int32x4  xor()   264 MB/s
[    0.898939] raid6: int32x8  gen()   358 MB/s
[    0.967046] raid6: int32x8  xor()   232 MB/s
[    1.034951] raid6: neonx1   gen()  1450 MB/s
[    1.102946] raid6: neonx1   xor()   846 MB/s
[    1.170918] raid6: neonx2   gen()  1880 MB/s
[    1.238928] raid6: neonx2   xor()  1150 MB/s
[    1.306921] raid6: neonx4   gen()  1982 MB/s
[    1.374915] raid6: neonx4   xor()  1199 MB/s
[    1.442929] raid6: neonx8   gen()  1209 MB/s
[    1.510961] raid6: neonx8   xor()   670 MB/s
[    1.510981] raid6: using algorithm neonx4 gen() 1982 MB/s
[    1.511000] raid6: .... xor() 1199 MB/s, rmw enabled
[    1.511019] raid6: using intx1 recovery algorithm
[    1.519854] edma 49000000.edma: TI EDMA DMA engine driver
[    1.524636] SCSI subsystem initialized
[    1.525375] usbcore: registered new interface driver usbfs
[    1.525472] usbcore: registered new interface driver hub
[    1.525580] usbcore: registered new device driver usb
[    1.526170] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[    1.526255] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring probe
[    1.526402] media: Linux media interface: v0.10
[    1.526477] Linux video capture interface: v2.00
[    1.526587] pps_core: LinuxPPS API ver. 1 registered
[    1.526610] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.526659] PTP clock support registered
[    1.527547] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    1.528806] NetLabel: Initializing
[    1.528847] NetLabel:  domain hash size = 128
[    1.528864] NetLabel:  protocols = UNLABELED CIPSOv4
[    1.528934] NetLabel:  unlabeled traffic allowed by default
[    1.529281] clocksource: Switched to clocksource timer1
[    1.636087] NET: Registered protocol family 2
[    1.636882] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    1.636955] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    1.637027] TCP: Hash tables configured (established 4096 bind 4096)
[    1.637113] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    1.637150] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    1.637541] NET: Registered protocol family 1
[    1.638079] RPC: Registered named UNIX socket transport module.
[    1.638116] RPC: Registered udp transport module.
[    1.638135] RPC: Registered tcp transport module.
[    1.638153] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.638771] Unpacking initramfs...
[    1.995660] Freeing initrd memory: 4960K (c8080000 - c8558000)
[    1.996220] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[    1.998983] futex hash table entries: 256 (order: 2, 16384 bytes)
[    1.999140] audit: initializing netlink subsys (disabled)
[    1.999231] audit: type=2000 audit(1.936:1): initialized
[    2.008864] zbud: loaded
[    2.009659] VFS: Disk quotas dquot_6.6.0
[    2.009935] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    2.012494] NFS: Registering the id_resolver key type
[    2.012582] Key type id_resolver registered
[    2.012603] Key type id_legacy registered
[    2.012644] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    2.013003] fuse init (API version 7.23)
[    2.013716] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[    2.021375] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    2.021715] io scheduler noop registered
[    2.021749] io scheduler deadline registered
[    2.021828] io scheduler cfq registered (default)
[    2.023174] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[    2.024851] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[    2.026344] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[    2.029166] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 158, base_baud = 3000000) is a 8250
[    2.918750] console [ttyS0] enabled
[    2.923717] [drm] Initialized drm 1.1.0 20060810
[    2.981304] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[    2.987506] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[    2.994101] davinci_mdio: dt: updated phy_id[0] from phy_mask[fffffffe]
[    3.007809] libphy: 4a101000.mdio: probed
[    3.011993] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[    3.022102] cpsw 4a100000.ethernet: Detected MACID = c8:a0:30:b7:f9:6f
[    3.030630] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.037407] ehci-platform: EHCI generic platform driver
[    3.042908] ehci-omap: OMAP-EHCI Host Controller driver
[    3.048610] usbcore: registered new interface driver usb-storage
[    3.056624] 47401300.usb-phy supply vcc not found, using dummy regulator
[    3.067332] 47401b00.usb-phy supply vcc not found, using dummy regulator
[    3.076472] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[    3.082365] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[    3.090513] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    3.097387] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    3.104694] usb usb1: Product: MUSB HDRC host driver
[    3.109713] usb usb1: Manufacturer: Linux 4.4.19-ti-r41 musb-hcd
[    3.115773] usb usb1: SerialNumber: musb-hdrc.1.auto
[    3.121785] hub 1-0:1.0: USB hub found
[    3.125693] hub 1-0:1.0: 1 port detected
[    3.138657] mousedev: PS/2 mouse device common for all mice
[    3.146409] omap_rtc 44e3e000.rtc: already running
[    3.151745] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[    3.159683] i2c /dev entries driver
[    3.164777] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    3.172143] cpuidle: enable-method property 'ti,am3352' found operations
[    3.179605] omap_hsmmc 48060000.mmc: Got CD GPIO
[    3.244437] mmc0: host does not support reading read-only switch, assuming write-enable
[    3.254049] hidraw: raw HID events driver (C) Jiri Kosina
[    3.260239] usbcore: registered new interface driver usbhid
[    3.265937] usbhid: USB HID core driver
[    3.270042] mmc0: new high speed SDHC card at address b368
[    3.275966] ashmem: initialized
[    3.280478]  remoteproc0: wkup_m3 is available
[    3.285043]  remoteproc0: Note: remoteproc is still under development and considered experimental.
[    3.294086]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    3.304943] mmcblk0: mmc0:b368 G5334 7.46 GiB 
[    3.311023]  mmcblk0: p1
[    3.317199] NET: Registered protocol family 10
[    3.326661] mip6: Mobile IPv6
[    3.329868] NET: Registered protocol family 17
[    3.334555] Key type dns_resolver registered
[    3.338948] mpls_gso: MPLS GSO support
[    3.343029] omap_voltage_late_init: Voltage driver support not added
[    3.353815] PM: Cannot get wkup_m3_ipc handle
[    3.358384] ThumbEE CPU extension supported.
[    3.362734] Registering SWP/SWPB emulation handler
[    3.368534] registered taskstats version 1
[    3.372906] zswap: loaded using pool lzo/zbud
[    3.380662] Btrfs loaded
[    3.390869] mmc1: MAN_BKOPS_EN bit is not set
[    3.399395] mmc1: new high speed MMC card at address 0001
[    3.410610] mmcblk1: mmc1:0001 MMC02G 1.79 GiB 
[    3.420997] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
[    3.427389] Key type encrypted registered
[    3.434687] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/input/input0
[    3.444020] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
[    3.451982]  mmcblk1: p1
[    3.474639] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[    3.480588] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    3.487799] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    3.495055] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    3.502480] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    3.509797] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    3.517107] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    3.524090] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[    3.530741]  remoteproc0: powering up wkup_m3
[    3.535250]  remoteproc0: Booting fw image am335x-pm-firmware.elf, size 219735
[    3.542828]  remoteproc0: remote processor wkup_m3 is now up
[    3.548538] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x191
[    3.560056] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,0A5C,3513BBBK3281'
[    3.567428] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4
[    3.613289] bone_capemgr bone_capemgr: slot #0: No cape found
[    3.657285] bone_capemgr bone_capemgr: slot #1: No cape found
[    3.701285] bone_capemgr bone_capemgr: slot #2: No cape found
[    3.745285] bone_capemgr bone_capemgr: slot #3: No cape found
[    3.751174] bone_capemgr bone_capemgr: initialized OK.
[    3.758351] PM: bootloader does not support rtc-only!
[    3.764074] omap_rtc 44e3e000.rtc: setting system clock to 2016-09-22 13:34:17 UTC (1474551257)
[    3.773005] of_cfs_init
[    3.775639] of_cfs_init: OK
[    3.784831] Freeing unused kernel memory: 600K (c0ac4000 - c0b5a000)
Loading, please wait...
starting version 230
[    3.887157] random: systemd-udevd: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
[    3.907924] random: udevadm: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
[    3.918299] random: systemd-udevd: uninitialized urandom read (16 bytes read, 16 bits of entropy available)
[    3.928734] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.938312] random: systemd-udevd: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.948413] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.963192] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.973490] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.983446] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
[    3.993541] random: udevadm: uninitialized urandom read (16 bytes read, 17 bits of entropy available)
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
Begin: Will now check root file system ... fsck from util-linux 2.25.2
[/sbin/fsck.ext4 (1) -- /dev/mmcblk0p1] fsck.ext4 -a -C0 /dev/mmcblk0p1 
rootfs: clean, 119279/217728 files, 640901/870144 blocks
done.
[    7.064838] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
[    7.632895] systemd[1]: Failed to insert module 'kdbus': Function not implemented
[    7.681963] systemd[1]: systemd 230 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[    7.700860] systemd[1]: Detected architecture arm.

Welcome to �[1mDebian GNU/Linux 8 (jessie)�[0m!

[    7.715064] systemd[1]: Set hostname to <yoder-debian-bone>.
[    8.243335] systemd[1]: Reached target Encrypted Volumes.
[OK] Reached target Encrypted Volumes.
[    8.258765] systemd[1]: Created slice User and Session Slice.
[OK] Created slice User and Session Slice.
[    8.278603] systemd[1]: Listening on Journal Audit Socket.
[OK] Listening on Journal Audit Socket.
[    8.290348] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[OK] Started Dispatch Password Requests to Console Directory Watch.
[    8.310181] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[OK] Listening on /dev/initctl Compatibility Named Pipe.
[    8.331306] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[OK] Set up automount Arbitrary Executab...ats File System Automount Point.
[    8.354264] systemd[1]: Listening on Journal Socket (/dev/log).
[OK] Listening on Journal Socket (/dev/log).
[    8.374124] systemd[1]: Listening on udev Kernel Socket.
[OK] Listening on udev Kernel Socket.
[    8.385908] systemd[1]: Reached target Remote File Systems (Pre).
[OK] Reached target Remote File Systems (Pre).
[    8.405892] systemd[1]: Reached target Remote File Systems.
[OK] Reached target Remote File Systems.
[    8.418237] systemd[1]: Listening on udev Control Socket.
[OK] Listening on udev Control Socket.
[    8.430123] systemd[1]: Listening on fsck to fsckd communication Socket.
[OK] Listening on fsck to fsckd communication Socket.
[    8.450256] systemd[1]: Listening on Journal Socket.
[OK] Listening on Journal Socket.
[    8.462411] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[OK] Started Forward Password Requests to Wall Directory Watch.
[    8.481887] systemd[1]: Reached target Paths.
[OK] Reached target Paths.
[    8.494192] systemd[1]: Listening on Syslog Socket.
[OK] Listening on Syslog Socket.
[    8.506712] systemd[1]: Created slice System Slice.
[OK] Created slice System Slice.
[    8.522139] systemd[1]: Mounting POSIX Message Queue File System...
         Mounting POSIX Message Queue File System...
[    8.565986] systemd[1]: Starting Remount Root and Kernel File Systems...
         Starting Remount Root and Kernel File Systems...
[    8.618477] systemd[1]: Starting Journal Service...
         Starting Journal Service...
[    8.697064] systemd[1]: Starting Load Kernel Modules...
[    8.705373] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
         Starting Load Kernel Modules...
[    8.752345] systemd[1]: Starting Create list of required static device nodes for the current kernel...
         Starting Create list of required st... nodes for the current kernel...
[    8.858357] systemd[1]: Mounting /sys/kernel/debug...
         Mounting /sys/kernel/debug...
[    8.930638] systemd[1]: Created slice system-getty.slice.
[OK] Created slice system-getty.slice.
[    8.973861] systemd[1]: Reached target Slices.
[OK] Reached target Slices.
[    8.999111] systemd[1]: Created slice system-serial\x2dgetty.slice.
[OK] Created slice system-serial\x2dgetty.slice.
[    9.021807] systemd[1]: Reached target Swap.
[OK] Reached target Swap.
[    9.054383] systemd[1]: Mounted POSIX Message Queue File System.
[OK] Mounted POSIX Message Queue File System.
[    9.086058] systemd[1]: Mounted /sys/kernel/debug.
[OK] Mounted /sys/kernel/debug.
[    9.098691] systemd[1]: Started Journal Service.
[OK] Started Journal Service.
[OK] Started Remount Root and Kernel File Systems.
[OK] Started Load Kernel Modules.
[OK] Started Create list of required sta...ce nodes for the current kernel.
         Starting Create Static Device Nodes in /dev...
         Starting Apply Kernel Variables...
         Mounting FUSE Control File System...
         Mounting Configuration File System...
         Starting Load/Save Random Seed...
         Starting udev Coldplug all Devices...
         Starting Flush Journal to Persistent Storage...
[OK] Mounted Configuration File System.
[OK] Mounted FUSE Control File System.
[OK] Started Create Static Device Nodes in /dev.
[OK] Started Apply Kernel Variables.
[OK] Started Load/Save Random Seed.
[    9.718236] systemd-journald[537]: Received request to flush runtime journal from PID 1
[OK] Reached target Local File Systems (Pre).
[OK] Reached target Local File Systems.
         Starting Raise network interfaces...
         Starting udev Kernel Device Manager...
[OK] Started Flush Journal to Persistent Storage.
         Starting Create Volatile Files and Directories...
[OK] Started udev Kernel Device Manager.
         Starting LSB: Tune IDE hard disks...
[OK] Started Create Volatile Files and Directories.
         Starting Network Time Synchronization...
         Starting Update UTMP about System Boot/Shutdown...
[OK] Started Network Time Synchronization.
[OK] Started Update UTMP about System Boot/Shutdown.
[OK] Started LSB: Tune IDE hard disks.
[OK] Reached target System Time Synchronized.
[OK] Started udev Coldplug all Devices.
[OK] Reached target System Initialization.
         Starting Restore Sound Card State...
[OK] Listening on cloud9.socket.
[OK] Listening on bonescript.socket.
[OK] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
[OK] Started Daily Cleanup of Temporary Directories.
[OK] Reached target Timers.
[OK] Listening on node-red.socket.
[OK] Listening on D-Bus System Message Bus Socket.
[OK] Reached target Sockets.
[OK] Reached target Basic System.
         Starting Generic Board Startup...
         Starting Avahi mDNS/DNS-SD Stack...
         Starting Cape Manager Service...
         Starting LSB: Start busybox udhcpd at boot time...
[OK] Started Entropy daemon using the HAVEGE algorithm.
         Starting LSB: Load kernel modules needed to enable cpufreq scaling...
[OK] Started Bonescript autorun.
         Starting Restore /etc/resolv.conf i...e the ppp link was shut down....
[OK] Started Regular background program processing daemon.
[   13.102614] random: nonblocking pool is initialized
[OK] Started D-Bus System Message Bus.
[OK] Started Avahi mDNS/DNS-SD Stack.
         Starting Connection service...
         Starting System Logging Service...
[OK] Started BB WL18xx wlan0 Service.
         Starting Login Service...
[OK] Started System Logging Service.
[OK] Started Restore Sound Card State.
[OK] Started Cape Manager Service.
[OK] Started Restore /etc/resolv.conf if...ore the ppp link was shut down..
[   15.028289] using random self ethernet address
[   15.032924] using random host ethernet address
[   15.080200] using host ethernet address: C8:A0:30:B7:F9:70
[   15.085685] using self ethernet address: C8:A0:30:B7:F9:71[   15.255829] Mass Storage Function, version: 2009/09/11
[   15.282794] LUN: removable file: (no medium)
[   15.338111] net eth0: initializing cpsw version 1.12 (0)
[   15.343559] net eth0: initialized cpsw ale version 1.4
[   15.348775] net eth0: ALE Table size 1024
[   15.373739] LUN: removable read only file: /var/cache/doc-beaglebone-getting-started/beaglebone-getting-started-2015-12-04.img
[   15.385325] Number of LUNs=1
[OK] Started LSB: Start busybox udhcpd at boot time.
[OK] Started Connection service.
[   15.614361] net eth0: phy found : id is : 0x7c0f1
[   15.683908] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   15.692351] usb0: HOST MAC c8:a0:30:b7:f9:70
[   15.721801] usb0: MAC c8:a0:30:b7:f9:71
[   15.757527] g_multi gadget: Multifunction Composite Gadget
[   15.763153] g_multi gadget: g_multi ready
[OK] Started Login Service.
[   16.375961] g_multi gadget: high-speed config #1: Multifunction with RNDIS
[OK] Started LSB: Load kernel modules needed to enable cpufreq scaling.
         Starting LSB: set CPUFreq kernel parameters...
         Starting WPA supplicant...
         Starting Hostname Service...
[OK] Started Raise network interfaces.
[OK] Started Hostname Service.
         Stopping LSB: Start busybox udhcpd at boot time...
[OK] Started LSB: set CPUFreq kernel parameters.
[OK] Stopped LSB: Start busybox udhcpd at boot time.
[OK] Started WPA supplicant.
[OK] Reached target Network.
[OK] Reached target Network is Online.
         Starting LSB: Advanced IEEE 802.11 management daemon...
         Starting /etc/rc.local Compatibility...
         Starting Permit User Sessions...
[OK] Started OpenBSD Secure Shell server.
[OK] Started LSB: Advanced IEEE 802.11 management daemon.
[OK] Started /etc/rc.local Compatibility.
[OK] Started Permit User Sessions.
[OK] Started Getty on tty1.
         Starting LSB: Start busybox udhcpd at boot time...
[OK] Started LSB: Start busybox udhcpd at boot time.
[OK] Found device /dev/ttyS0.
[OK] Started Serial Getty on ttyS0.
[   24.512280] davinci-mcasp 4803c000.mcasp: invalid tdm slots: 0
[   27.039099] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[   27.395051] tda998x 0-0070: found TDA19988
[   27.494498] tilcdc 4830e000.lcdc: bound 0-0070 (ops tda998x_ops [tda998x])
[   27.666538] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   27.673348] [drm] No driver support for vblank timestamp query.
[   28.057739] tilcdc 4830e000.lcdc: No connectors reported connected with modes
[   28.289846] [drm] Cannot find any crtc or sizes - going 1024x768


Debian GNU/Linux 8 yoder-debian-bone ttyS0

BeagleBoard.org Debian Image 2016-08-28

Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

default username:password is [debian:temppwd]

The IP Address for usb0 is: 192.168.7.2
yoder-debian-bone login: [   28.669804] Console: switching to colour frame buffer device 128x48
[   28.977776] tilcdc 4830e000.lcdc: fb0:  frame buffer device
[   29.129500] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
[   29.368073] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[   29.685221] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[   33.668403] asoc-simple-card sound: i2s-hifi <-> 48038000.mcasp mapping ok
[   33.972674] bone_capemgr bone_capemgr: part_number 'cape-universaln', version 'N/A'
[   34.000640] bone_capemgr bone_capemgr: slot #4: override
[   34.006262] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[   34.013438] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,cape-universaln'
[   34.364580] gpio-of-helper ocp:cape-universal: Allocated GPIO id=0
[   34.390274] gpio-of-helper ocp:cape-universal: Allocated GPIO id=1
[   34.416541] gpio-of-helper ocp:cape-universal: Allocated GPIO id=2
[   34.437073] gpio-of-helper ocp:cape-universal: Allocated GPIO id=3
[   34.462417] gpio-of-helper ocp:cape-universal: Allocated GPIO id=4
[   34.484217] gpio-of-helper ocp:cape-universal: Allocated GPIO id=5
[   34.508607] gpio-of-helper ocp:cape-universal: Allocated GPIO id=6
[   34.529743] gpio-of-helper ocp:cape-universal: Allocated GPIO id=7
[   34.556563] gpio-of-helper ocp:cape-universal: Allocated GPIO id=8
[   34.577798] gpio-of-helper ocp:cape-universal: Allocated GPIO id=9
[   34.601853] gpio-of-helper ocp:cape-universal: Allocated GPIO id=10
[   34.626168] gpio-of-helper ocp:cape-universal: Allocated GPIO id=11
[   34.651351] gpio-of-helper ocp:cape-universal: Allocated GPIO id=12
[   34.670323] gpio-of-helper ocp:cape-universal: Allocated GPIO id=13
[   34.696061] gpio-of-helper ocp:cape-universal: Allocated GPIO id=14
[   34.717090] gpio-of-helper ocp:cape-universal: Allocated GPIO id=15
[   34.745719] gpio-of-helper ocp:cape-universal: Allocated GPIO id=16
[   34.763771] gpio-of-helper ocp:cape-universal: Allocated GPIO id=17
[   34.789134] gpio-of-helper ocp:cape-universal: Allocated GPIO id=18
[   34.813830] gpio-of-helper ocp:cape-universal: Allocated GPIO id=19
[   34.833908] gpio-of-helper ocp:cape-universal: Allocated GPIO id=20
[   34.865054] gpio-of-helper ocp:cape-universal: Allocated GPIO id=21
[   34.894656] gpio-of-helper ocp:cape-universal: Allocated GPIO id=22
[   34.922150] gpio-of-helper ocp:cape-universal: Allocated GPIO id=23
[   34.949775] gpio-of-helper ocp:cape-universal: Allocated GPIO id=24
[   34.980587] gpio-of-helper ocp:cape-universal: Allocated GPIO id=25
[   35.009752] gpio-of-helper ocp:cape-universal: Allocated GPIO id=26
[   35.037774] gpio-of-helper ocp:cape-universal: Allocated GPIO id=27
[   35.065842] gpio-of-helper ocp:cape-universal: Allocated GPIO id=28
[   35.097765] gpio-of-helper ocp:cape-universal: Allocated GPIO id=29
[   35.118941] gpio-of-helper ocp:cape-universal: Allocated GPIO id=30
[   35.152175] gpio-of-helper ocp:cape-universal: Allocated GPIO id=31
[   35.179848] gpio-of-helper ocp:cape-universal: Allocated GPIO id=32
[   35.187844] gpio-of-helper ocp:cape-universal: ready
[   35.233688] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 191, base_baud = 3000000) is a 8250
[   35.274247] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 192, base_baud = 3000000) is a 8250
[   35.313736] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 193, base_baud = 3000000) is a 8250
[   35.351856] platform 48300180.eqep: Cannot lookup hwmod 'eqep0'
[   35.387665] platform 48302180.eqep: Cannot lookup hwmod 'eqep1'
[   35.419199] platform 48304180.eqep: Cannot lookup hwmod 'eqep2'
[   35.461676] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[   35.492186] bone_capemgr bone_capemgr: slot #4: dtbo 'cape-universaln-00A0.dtbo' loaded; overlay id #0
[   36.935231] eqep 48300180.eqep: ver. 1.0
[   37.181480] eqep 48300180.eqep: failed to get clock
[   37.266945] eqep: probe of 48300180.eqep failed with error -2
[   37.489999] eqep 48302180.eqep: ver. 1.0
[   37.507853] CAN device driver interface
[   37.653641] eqep 48302180.eqep: failed to get clock
[   37.669575] c_can_platform 481cc000.can: c_can_platform device registered (regs=fa1cc000, irq=200)
[   37.801624] eqep: probe of 48302180.eqep failed with error -2
[   37.927494] c_can_platform 481d0000.can: c_can_platform device registered (regs=fa1d0000, irq=201)
[   37.954568] eqep 48304180.eqep: ver. 1.0
[   37.982355] eqep 48304180.eqep: failed to get clock
[   38.027724] eqep: probe of 48304180.eqep failed with error -2


Debian GNU/Linux 8 yoder-debian-bone ttyS0

BeagleBoard.org Debian Image 2016-08-28

Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

default username:password is [debian:temppwd]

The IP Address for usb0 is: 192.168.7.2
yoder-debian-bone login:

Stopping kernel

bone$ halt
reboot
         Stopping Entropy daemon using the HAVEGE algorithm...
[OK] Stopped target Sound Card.
[OK] Stopped target Timers.
[OK] Reached target Unmount All Filesystems.
         Starting Store Sound Card State...
[OK] Stopped Daily Cleanup of Temporary Directories.
[OK] Stopped target System Time Synchronized.
[OK] Stopped target Graphical Interface.
[OK] Stopped target Multi-User System.
         Stopping Regular background program processing daemon...
         Stopping Avahi mDNS/DNS-SD Stack...
         Stopping OpenBSD Secure Shell server...
[OK] Stopped target Login Prompts.
         Stopping Serial Getty on ttyGS0...
         Stopping Getty on tty1...         Stopping Serial Getty on ttyS0...
         Stopping System Logging Service...
         Stopping Login Service...
         Stopping Bonescript autorun...
         Stopping LSB: Start busybox udhcpd at boot time...
         Stopping LSB: Advanced IEEE 802.11 management daemon...
         Stopping LSB: set CPUFreq kernel parameters...
[OK] Stopped Avahi mDNS/DNS-SD Stack.
[OK] Stopped Entropy daemon using the HAVEGE algorithm.
[OK] Stopped Bonescript autorun.
[OK] Stopped Regular background program processing daemon.
[OK] Stopped Login Service.
[OK] Stopped OpenBSD Secure Shell server.
[OK] Stopped Getty on tty1.
[OK] Stopped System Logging Service.
[OK] Stopped Serial Getty on ttyS0.
[OK] Stopped Serial Getty on ttyGS0.
[OK] Started Store Sound Card State.
[OK] Stopped LSB: Advanced IEEE 802.11 management daemon.
[OK] Stopped LSB: Start busybox udhcpd at boot time.
[OK] Stopped LSB: set CPUFreq kernel parameters.
         Stopping LSB: Load kernel modules needed to enable cpufreq scaling...
[OK] Removed slice system-serial\x2dgetty.slice.
[OK] Stopped /etc/rc.local Compatibility.
[OK] Stopped target Network is Online.
         Stopping Permit User Sessions...
[OK] Removed slice system-getty.slice.
[OK] Stopped Permit User Sessions.
[OK] Stopped LSB: Load kernel modules needed to enable cpufreq scaling.
[OK] Stopped target Remote File Systems.
[OK] Stopped target Remote File Systems (Pre).
[OK] Stopped target Network.
         Stopping Connection service...
         Stopping Raise network interfaces...
         Stopping WPA supplicant...
[OK] Stopped WPA supplicant.
[OK] Stopped Connection service.
         Stopping D-Bus System Message Bus...
[OK] Stopped D-Bus System Message Bus.
[OK] Stopped target Basic System.
[OK] Stopped target Slices.
[OK] Removed slice User and Session Slice.
[OK] Stopped target Sockets.
[OK] Closed Avahi mDNS/DNS-SD Stack Activation Socket.
[OK] Closed Syslog Socket.
[OK] Closed cloud9.socket.
[OK] Closed bonescript.socket.
[OK] Closed node-red.socket.
[OK] Stopped target Paths.
[OK] Stopped Dispatch Password Requests to Console Directory Watch.
[OK] Stopped Forward Password Requests to Wall Directory Watch.
[OK] Closed D-Bus System Message Bus Socket.
[OK] Stopped target System Initialization.
         Stopping Update UTMP about System Boot/Shutdown...
         Stopping Load/Save Random Seed...
[OK] Stopped target Encrypted Volumes.
         Stopping Network Time Synchronization...
[OK] Stopped target Swap.
[OK] Stopped Network Time Synchronization.
[OK] Stopped Load/Save Random Seed.
[OK] Stopped Update UTMP about System Boot/Shutdown.
[OK] Stopped Create Volatile Files and Directories.
[OK] Stopped Raise network interfaces.
[OK] Stopped target Local File Systems.
[OK] Stopped target Local File Systems (Pre).
[OK] Stopped Remount Root and Kernel File Systems.
[OK] Stopped Create Static Device Nodes in /dev.
[OK] Stopped Apply Kernel Variables.
[OK] Stopped Load Kernel Modules.
[OK] Reached target Shutdown.
[   88.816418] watchdog watchdog0: watchdog did not stop!
[   88.858414] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[   88.887621] systemd-journald[537]: Received SIGTERM from PID 1 (systemd-shutdow).
[   88.911831] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[   88.936982] systemd-shutdown[1]: Hardware watchdog 'OMAP Watchdog', version 0
[   88.946448] systemd-shutdown[1]: Unmounting file systems.
[   88.953475] systemd-shutdown[1]: Remounting '/' read-only with options 'errors=remount-ro,data=ordered'.
[   94.188368] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro,data=ordered
[   94.226688] systemd-shutdown[1]: Remounting '/' read-only with options 'errors=remount-ro,data=ordered'.
[   94.240075] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro,data=ordered
[   94.248286] systemd-shutdown[1]: All filesystems unmounted.
[   94.254287] systemd-shutdown[1]: Deactivating swaps.
[   94.260309] systemd-shutdown[1]: All swaps deactivated.
[   94.266144] systemd-shutdown[1]: Detaching loop devices.
[   94.278454] systemd-shutdown[1]: All loop devices detached.
[   94.284704] systemd-shutdown[1]: Detaching DM devices.
[   94.291876] systemd-shutdown[1]: All DM devices detached.
[   94.319684] systemd-shutdown[1]: Failed to read reboot parameter file: No such file or directory
[   94.329474] systemd-shutdown[1]: Rebooting.
[   94.338711] musb-hdrc musb-hdrc.1.auto: remove, state 4
[   94.344523] usb usb1: USB disconnect, device number 1
[   94.351943] musb-hdrc musb-hdrc.1.auto: USB bus 1 deregistered
[   94.382034] reboot: Restarting system

systemd

beagle$ systemctl
UNIT                      LOAD   ACTIVE SUB       JOB DESCRIPTION
proc-sys...misc.automount loaded active running       Arbitrary Executable File Formats File System Automount Point
sys-devi...et-eth0.device loaded active plugged       /sys/devices/platform/cpsw.0/net/eth0
sys-devi...et-usb0.device loaded active plugged       /sys/devices/platform/omap/musb-ti81xx/musb-hdrc.0/gadget/net/usb0
sys-devi...cblk0p1.device loaded active plugged       /sys/devices/platform/omap/omap_hsmmc.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p
sys-devi...cblk0p2.device loaded active plugged       /sys/devices/platform/omap/omap_hsmmc.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p
sys-devi...mmcblk0.device loaded active plugged       /sys/devices/platform/omap/omap_hsmmc.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0
sys-devi...y-ttyO0.device loaded active plugged       /sys/devices/platform/omap/omap_uart.0/tty/ttyO0
sys-devi...y-ttyO1.device loaded active plugged       /sys/devices/platform/omap/omap_uart.1/tty/ttyO1
sys-devi...y-ttyO2.device loaded active plugged       /sys/devices/platform/omap/omap_uart.2/tty/ttyO2
sys-devi...y-ttyO3.device loaded active plugged       /sys/devices/platform/omap/omap_uart.3/tty/ttyO3
sys-devi...y-ttyO4.device loaded active plugged       /sys/devices/platform/omap/omap_uart.4/tty/ttyO4
sys-devi...y-ttyO5.device loaded active plugged       /sys/devices/platform/omap/omap_uart.5/tty/ttyO5
sys-devi...y-ttyS0.device loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS0
sys-devi...y-ttyS1.device loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS1
sys-devi...y-ttyS2.device loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS2
sys-devi...y-ttyS3.device loaded active plugged       /sys/devices/platform/serial8250/tty/ttyS3
sys-devi...et-sit0.device loaded active plugged       /sys/devices/virtual/net/sit0
sys-devi...ty-tty0.device loaded active plugged       /sys/devices/virtual/tty/tty0
sys-devi...ty-tty1.device loaded active plugged       /sys/devices/virtual/tty/tty1
sys-devi...y-tty10.device loaded active plugged       /sys/devices/virtual/tty/tty10
sys-devi...y-tty11.device loaded active plugged       /sys/devices/virtual/tty/tty11
sys-devi...y-tty12.device loaded active plugged       /sys/devices/virtual/tty/tty12
sys-devi...ty-tty2.device loaded active plugged       /sys/devices/virtual/tty/tty2
sys-devi...ty-tty3.device loaded active plugged       /sys/devices/virtual/tty/tty3
sys-devi...ty-tty4.device loaded active plugged       /sys/devices/virtual/tty/tty4
sys-devi...ty-tty5.device loaded active plugged       /sys/devices/virtual/tty/tty5
sys-devi...ty-tty6.device loaded active plugged       /sys/devices/virtual/tty/tty6
sys-devi...ty-tty7.device loaded active plugged       /sys/devices/virtual/tty/tty7
sys-devi...ty-tty8.device loaded active plugged       /sys/devices/virtual/tty/tty8
sys-devi...ty-tty9.device loaded active plugged       /sys/devices/virtual/tty/tty9
-.mount                   loaded active mounted       /
dev-mqueue.mount          loaded active mounted       POSIX Message Queue File System
etc-machine\x2did.mount   loaded active mounted       /etc/machine-id
proc-sys...fmt_misc.mount loaded active mounted       Arbitrary Executable File Formats File System
sys-kernel-debug.mount    loaded active mounted       Debug File System
tmp.mount                 loaded active mounted       Temporary Directory
systemd-...d-console.path loaded active waiting       Dispatch Password Requests to Console Directory Watch
systemd-...word-wall.path loaded active waiting       Forward Password Requests to Wall Directory Watch
avahi-daemon.service      loaded active running       Avahi mDNS/DNS-SD Stack
bone101.service           loaded active running       Beaglebone 101 presentation
cape.service              loaded active exited        Beaglebone cape support
cloud9.service            loaded active running       Cloud9 IDE
connman.service           loaded active running       Connection service
console-...-start.service loaded active exited        Console System Startup Logging
crond.service             loaded active running       Periodic Command Scheduler
dbus.service              loaded active running       D-Bus System Message Bus
dropbear...:59238.service loaded active running       SSH Per-Connection Server
gateone.service           loaded active running       GateOne daemon
gdm.service               loaded active running       Gnome Display Manager
getty@tty1.service        loaded active running       Getty on tty1
leds.service              loaded active exited        Angstrom LED config
network-...t-init.service loaded active exited        Start USB Ethernet gadget
pvr-init.service          loaded active exited        pvr-init.service
remount-rootfs.service    loaded active exited        Remount Root FS
serial-g...@ttyO0.service loaded active running       Serial Getty on ttyO0
systemd-journald.service  loaded active running       Journal Service
systemd-logind.service    loaded active running       Login Service
systemd-...s-load.service loaded active exited        Load Kernel Modules
systemd-...pi-vfs.service loaded active exited        Remount API VFS
systemd-sysctl.service    loaded active exited        Apply Kernel Variables
systemd-...-setup.service loaded active exited        Recreate Volatile Files and Directories
systemd-...ssions.service loaded active exited        Permit User Sessions
timestamp.service         loaded active exited        Timestamping service
udev-trigger.service      loaded active exited        udev Coldplug all Devices
udev.service              loaded active running       udev Kernel Device Manager
udhcpd.service            loaded active running       DHCP server for USB0 network gadget
xinetd.service            loaded active exited        xinetd.service
avahi-daemon.socket       loaded active listening     Avahi mDNS/DNS-SD Stack Activation Socket
dbus.socket               loaded active running       D-Bus System Message Bus Socket
dropbear.socket           loaded active listening     dropbear.socket
systemd-initctl.socket    loaded active listening     /dev/initctl Compatibility Named Pipe
systemd-journald.socket   loaded active running       Journal Socket
systemd-shutdownd.socket  loaded active listening     Delayed Shutdown Socket
udev-control.socket       loaded active listening     udev Control Socket
udev-kernel.socket        loaded active running       udev Kernel Socket
basic.target              loaded active active        Basic System
getty.target              loaded active active        Login Prompts
graphical.target          loaded active active        Graphical Interface
local-fs-pre.target       loaded active active        Local File Systems (Pre)
local-fs.target           loaded active active        Local File Systems
multi-user.target         loaded active active        Multi-User
remote-fs.target          loaded active active        Remote File Systems
sockets.target            loaded active active        Sockets
swap.target               loaded active active        Swap
sysinit.target            loaded active active        System Initialization
systemd-...es-clean.timer loaded active waiting       Daily Cleanup of Temporary Directories

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
JOB    = Pending job for the unit.

86 units listed. Pass --all to see inactive units, too.




thumb‎ Embedded Linux Class by Mark A. Yoder