Difference between revisions of "BeagleBoardUbuntu"

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(Added a section on useful software for a BB+Ubuntu set up)
(Adding new mirroe for Lucid prebuilt image: http://amitkarpe.com/download/ubuntu-10.04-minimal-armel.tar.7z)
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  wget http://ynezz.ibawizard.net/beagleboard/ubuntu-10.04-minimal-armel.tar.7z
 
  wget http://ynezz.ibawizard.net/beagleboard/ubuntu-10.04-minimal-armel.tar.7z
 
  wget http://vivaphp.net/beagle/ubuntu-10.04-minimal-armel.tar.7z
 
  wget http://vivaphp.net/beagle/ubuntu-10.04-minimal-armel.tar.7z
 +
wget http://amitkarpe.com/download/ubuntu-10.04-minimal-armel.tar.7z
  
 
Unpack it:
 
Unpack it:

Revision as of 04:28, 14 May 2010

This page is about running a (ARM EABI) Ubuntu distribution at BeagleBoard. BeagleBoard will boot the (ARM EABI) Ubuntu distribution from SD card.

Note: for the best experience, make sure you have an LCD attached to the HDMI port, 2GB/4GB/8GB SD card, and a known good usb2.0 hub with mouse and keyboard.

Contents

Help

If you need any help:

  • Ubuntu related help:
    • #ubuntu-arm: Ubuntu's arm irc on freenode (logs -> year -> month -> day -> #ubuntu-arm.html)
  • When asking for help, please provide some debugging information:
    • U-Boot Version installed on board
    • Kernel Version: uname -a
    • pastebin dmesg
      • Copy from serial port or use "dmesg | pastebinit" (sudo apt-get install pastebinit)

Recommended Beagle Software

Demo Image

Karmic 9.10

Built with: 

sudo ./rootstock --fqdn beagleboard --login ubuntu --password temppwd --imagesize 2G \
--seed wget,nano,linux-firmware,wireless-tools,usbutils --dist karmic --serial ttyS2 \
--kernel-image http://rcn-ee.net/deb/kernel/beagle/karmic/v2.6.32.11-x13/linux-image-2.6.32.11-x13_1.0karmic_armel.deb

Get prebuilt image: 

wget http://rcn-ee.net/deb/rootfs/ubuntu-9.10.2-minimal-armel.tar.7z
mirrors:
wget http://ynezz.ibawizard.net/beagleboard/ubuntu-9.10.2-minimal-armel.tar.7z
wget http://vivaphp.net/beagle/ubuntu-9.10.2-minimal-armel.tar.7z

Unpack it: 

7za x ubuntu-9.10.2-minimal-armel.tar.7z
tar xf ubuntu-9.10.2-minimal-armel.tar
cd ubuntu-9.10.2-minimal-armel

Quick Install script 

./setup_sdcard.sh --mmc /dev/sdX --ignore_md5sum
  • Bug: --ignore_md5sum is needed
  • Additional Options
    • --rootfs <ext3 default>
    • --swap_file <swap file size in MB's>

md5sum: 0bf198beac0a0358bc2c0097c6dddec7 ubuntu-9.10.2-minimal-armel.tar.7z

Lucid 10.04

Lucid Bug Tracker

Built with: 

sudo ./rootstock --fqdn beagleboard --login ubuntu --password temppwd --imagesize 2G \
--seed wget,nano,linux-firmware,wireless-tools,usbutils --dist lucid --serial ttyS2 \
--script fixup.sh --components "main universe multiverse" \
--kernel-image http://rcn-ee.net/deb/kernel/beagle/lucid/v2.6.32.11-l13/linux-image-2.6.32.11-l13_1.0lucid_armel.deb

Get prebuilt image: 

wget http://rcn-ee.net/deb/rootfs/ubuntu-10.04-minimal-armel.tar.7z
mirrors (updating):
wget http://ynezz.ibawizard.net/beagleboard/ubuntu-10.04-minimal-armel.tar.7z
wget http://vivaphp.net/beagle/ubuntu-10.04-minimal-armel.tar.7z
wget http://amitkarpe.com/download/ubuntu-10.04-minimal-armel.tar.7z

Unpack it: 

7za x ubuntu-10.04-minimal-armel.tar.7z
tar xf ubuntu-10.04-minimal-armel.tar
cd ubuntu-10.04-minimal-armel

Quick Install script for Beagle Bx, C2 & C3 

./setup_sdcard.sh --mmc /dev/sdX --uboot beagle

Quick Install script for Beagle C4 (forces 720Mhz) 

./setup_sdcard.sh --mmc /dev/sdX --uboot beagle_c4
  • Additional Options
    • --rootfs <ext3 default>
    • --swap_file <swap file size in MB's>

md5sum: 71c9f2372283752a7f410075001c1d76 ubuntu-10.04-minimal-armel.tar.7z

NetInstall Method

This is a new section for Lucid, slated for release April 29th

Note: Rootstock in Lucid is broken.. Bug 532733 so the NetInstall is going to be the perfered method for anything over a minimal image.

Known Bugs:

Bug 566639: omap install ends up with security.ubuntu.com urls in sources.list after install

Official Ubuntu Kernel

Directions: BeagleNetInstall

Community Kernel

https://code.launchpad.net/~beagleboard-kernel/+junk/debian-di

bzr branch lp:~beagleboard-kernel/+junk/debian-di
cd debian-di
./mk_mmc.sh --mmc /dev/sdX --distro lucid --firmware
  • Options:
    • --distro : squeeze, lucid
    • --firmware : installs firmware
    • --serial-mode : debian-installer uses Serial Port

Note: The default options work for most people, but if you'd like to tweak boot settings, edit these before running the script. 

NetInstall boot Settings:
gedit ./debian-di/scripts/dvi.cmd
gedit ./debian-di/scripts/serial.cmd

Normal Boot Settings:
gedit ./debian-di/scripts/dvi-normal-lucid.cmd
gedit ./debian-di/scripts/serial-normal-lucid.cmd

Assumptions: 

Continue with out Kernel Modules <yes>
Partition <Guided - use the largest continuous free space>

Status: 

As of bzr revision 10: The install completes successfully and it'll reboot into your new image..

Todo: 

Limit the number of times nand erase is called...

(Currently when ubuntu's NetInstall see's "OMAP3 Beagle Board" thru /proc/cpuinfo it overwrites the nand flash, I've worked around that with this script... But I'd like to find a way to only erase nand right before reboot.. --RobertCNelson 01:25, 23 April 2010 (UTC))

RootStock: Build an Ubuntu root file system

Ubuntu Version's

This guide only covers the latest Ubuntu stable (lucid) release and notes for the testing (lucid+1) dists. Notes for older release's can be found here:

Install RootStock

This is based off Ubuntu's RootStock Project; RootStock script.

Debian Squeeze 

(unsupported as tested on 4/28/2010, qemu segfaults)

Karmic (9.10) 

sudo apt-get install (FIXME: rootstock minimum requirements)
bzr branch lp:project-rootstock
cd project-rootstock
bzr revert -r 94  (Commit 95, isn't supported by Karmic's QEMU)
  • qemu: unknown parameter 'aio' in 'file=/tmp/tmp.QxNNQAxEyv/qemu-armel-201004221701.img,aio=native,cache=none'

Lucid (10.04) 

sudo apt-get install rootstock

RootStock

RootStock: Useful seed Packages

Useful Packages: 

linux-firmware,wireless-tools :wifi adapters..
ntpdate :sync real time clock from network

GUI's (broken bug: FIXME) 

xfce4:  xfce4,gdm,xubuntu-gdm-theme,xubuntu-artwork

RootStock: Running

Rootstock Command line: 

sudo ./rootstock --fqdn <hostname> --login <rootuser> --password <rootuserpasswd> --imagesize <qemu image size> \
--seed <packages> --dist <jaunty/karmic> --serial <ttySx>  --kernel-image <http>

Basic Lucid (10.04) Beagleboard minimal image: 

sudo ./rootstock --fqdn beagleboard --login ubuntu --password temppwd --imagesize 2G \
--seed wget,nano,linux-firmware,wireless-tools,usbutils --dist lucid --serial ttyS2 \
--components "main universe multiverse" \
--kernel-image http://rcn-ee.net/deb/kernel/beagle/lucid/v2.6.32.11-l13/linux-image-2.6.32.11-l13_1.0lucid_armel.deb

Upon Completion, you should have: 

armel-rootfs-<date>.tgz  -> Root file System, dump to ext2/3 partition of SD card
vmlinuz-2.6.<version>    -> Boot Image, use mkimage to create uImage and dump to the first fat16 partition of SD card
initrd.img-2.6.<version> -> Boot initramfs, use mkimage to create uInitrd and dump to the first fat16 partition of SD card

Partition SD Card

You will need a 1GB SD card or greater. 

Standard Console System : ~286MB
+ Desktop environment (lxde,gdm) : ~479MB

Starting with an empty SD card and using gparted, create: 

50 MiB Primary Partition, fat16/fat32
Rest as ext2/ext3/ext4/btrfs

Gparted Example: http://nishanthmenon.blogspot.com/2008/08/how-to-boot-beagle.html

For Reference: 

Disk /dev/sdd: 2038 MB, 2038431744 bytes
255 heads, 63 sectors/track, 247 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0008e471

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1           6       48163+   6  FAT16
/dev/sdd2               7         247     1935832+  83  Linux

Copy Root File System to SD Card

Mount your SD card's larger root file system partition (assuming /dev/sdX2) and 'untar' the rootfs into it. 

mkdir -p ./tmp
sudo mount /dev/sdX2 ./tmp
sudo tar xfp armel-rootfs-*.tgz -C ./tmp
sudo umount ./tmp

Boot Partition

Requirements: 

sudo apt-get install uboot-mkimage

U-Boot uImage

U-Boot needs a compatible kernel image to boot. To do this, we are using mkimage from (uboot-mkimage) to create an image from the vmlinuz kernel file. 

mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "Linux" -d ./vmlinuz-* ./uImage

U-Boot uInitrd

This step is Optional, but it helps with the lucid experience. 

mkimage -A arm -O linux -T ramdisk -C none -a 0 -e 0 -n initramfs -d ./initrd.img-* ./uInitrd

Boot Scripts

The version of U-Boot installed or recommended to install uses boot scripts by default. This allows users to easily switch between multiple SD cards with different OS's with different parameters installed. Ubuntu/Debian requires a slight modification to the bootargs line vs. Angstrom, 'ro' vs 'rw'.

add/create ubuntu.cmd 

setenv bootcmd 'mmc init; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000'
setenv bootargs 'console=tty0 console=ttyS2,115200n8 root=/dev/mmcblk0p2 rootwait rootfstype=ext3 ro vram=12M omapfb.mode=dvi:1280x720MR-16@60'
boot

FIXME: rootfstype shouldn't be needed anymore...

With Optional uInitrd: create ubuntu.cmd: 

setenv bootcmd 'mmc init; fatload mmc 0:1 0x80000000 uImage; fatload mmc 0:1 0x81600000 uInitrd; bootm 0x80000000 0x81600000'
setenv bootargs 'console=tty0 console=ttyS2,115200n8 root=/dev/mmcblk0p2 rootwait ro vram=12M omapfb.mode=dvi:1280x720MR-16@60'
boot

Use mkimage create to actual *.scr file for U-Boot: 

mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Ubuntu 10.04" -d ./ubuntu.cmd ./ubuntu.scr

Copy to Boot Partition

Mount your SD card fat16/fat32 partition (assuming /dev/sdX1) and copy the uImage, boot.scr, and optional uInitrd to the first partition. 

mkdir -p ./tmp
sudo mount /dev/sdX1 ./tmp
sudo cp ./uImage ./tmp/uImage
sudo cp ./uInitrd ./tmp/uImage

Beagle:
sudo cp ./ubuntu.scr ./tmp/boot.scr

IGEPv2:
sudo cp ./ubuntu.scr ./tmp/boot.ini

sudo umount ./tmp

Ubuntu Bugs & Tweaks

Ubuntu Rootfs Install

This section describes how you create a Ubuntu root file system for your BeagleBoard.

Note:

  • Jaunty, aka Ubuntu 9.04, is the old-stable version (armv5 optimized)
  • Karmic, aka Ubuntu 9.10, is the recent stable version (armv6 optimized)
  • Lucid, aka Ubuntu 10.04 is the upcoming Ubuntu version, not released yet (in Feb 2010). Therefore it is listed here as 'testing'. (armv7 optimized)

Development PC: Root File System

Build Image

rootstock is Ubuntu's new name for Oliver's <ogra> depreciated build-arm-rootfs script.

Note: Lucid & Proxy Support is currently in bzr trunk and will release with lucid...

rootstock installation

Note: Use latest debootstrap, if the one posted here is no longer available.

Building Jaunty or Karmic rootfs

Jaunty (9.04) and Debian: 

sudo apt-get install qemu
wget http://ports.ubuntu.com/pool/main/d/debootstrap/debootstrap_1.0.20~jaunty1_all.deb
sudo dpkg -i debootstrap_1.0.20~jaunty1_all.deb
wget http://launchpad.net/project-rootstock/trunk/0.1/+download/rootstock-0.1.3.tar.gz
tar xf rootstock-0.1.3.tar.gz
cd rootstock-0.1.3

Karmic (9.10) and Lucid (10.04): 

sudo apt-get install rootstock
Building Lucid rootfs

Karmic (9.10) 

bzr branch lp:project-rootstock
cd project-rootstock
bzr revert -r 94  (Commit 95, isn't supported by Karmic's QEMU)
  • qemu: unknown parameter 'aio' in 'file=/tmp/tmp.QxNNQAxEyv/qemu-armel-201004221701.img,aio=native,cache=none'

Lucid (10.04) 

sudo apt-get install rootstock

rootstock seed package hints

Useful Packages: 

linux-firmware,wireless-tools :wifi adapters..
ntpdate :sync real time clock from network

GUI's 

xfce4:  xfce4,gdm,xubuntu-gdm-theme,xubuntu-artwork

WiFi Hints: http://elinux.org/BeagleBoardUbuntuNetwork

running rootstock

Rootstock Command line: 

sudo ./rootstock --fqdn <hostname> --login <rootuser> --password <rootuserpasswd> --imagesize <qemu image size> \
--seed <packages> --dist <jaunty/karmic> --serial <ttySx>  --kernel-image <http>

Basic Karmic (9.10) Beagleboard xfce4 image: 

sudo ./rootstock --fqdn beagleboard --login ubuntu --password temppwd --imagesize 2G --dist karmic \
--serial ttyS2 --seed xfce4,gdm,xubuntu-gdm-theme,xubuntu-artwork \
--kernel-image http://rcn-ee.net/deb/kernel/beagle/karmic/v2.6.32.7-x7.1/linux-image-2.6.32.7-x7.1_1.0karmic_armel.deb

Upon Completion, you should have: 

armel-rootfs-<date>.tgz  -> Root file System, dump to ext2/3 partition of SD card
vmlinuz-2.6.<version>    -> Boot Image, use mkimage to create uImage and dump to the first fat16 partition of SD card

Lucid (10.04) Testing:

Major Changes: 

gcc-4.4: https://launchpad.net/ubuntu/lucid/+source/gcc-4.4
 gcc -v: --with-arch=armv7-a --with-tune=cortex-a8 --with-float=softfp --with-fpu=vfpv3-d16

Basic Lucid (10.04) Beagleboard image: 

sudo ./rootstock --fqdn beagleboard --login ubuntu --password temppwd --imagesize 2G --dist lucid \
--script fixup.sh --serial ttyS2 \
--kernel-image http://rcn-ee.net/deb/kernel/beagle/lucid/v2.6.32.7-l7.1/linux-image-2.6.32.7-l7.1_1.0lucid_armel.deb

Development PC: Format SD Card

You will need a 1GB SD card or greater. 

Standard Console System : ~286MB
+ Desktop environment (lxde,gdm) : ~479MB

Starting with an empty SD card and using gparted, create: 

50 MiB Primary Partition, fat16/fat32
Rest as ext2/ext3

Gparted Example: http://nishanthmenon.blogspot.com/2008/08/how-to-boot-beagle.html

For Reference: 

Disk /dev/sdd: 2038 MB, 2038431744 bytes
255 heads, 63 sectors/track, 247 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0008e471

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1           6       48163+   6  FAT16
/dev/sdd2               7         247     1935832+  83  Linux

Development PC: Setup SD Partition's

Requirements: 

sudo apt-get install uboot-mkimage

Create uImage for U-Boot

U-Boot needs a compatible kernel image to boot. To do this, we are using mkimage from (uboot-mkimage) to create an image from the vmlinuz kernel file. 

mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "Linux" -d ./vmlinuz-* ./uImage

Create U-Boot boot image

The version of U-Boot installed or recommended to install uses boot scripts by default. This allows users to easily switch between multiple SD cards with different OS's with different parameters installed. Ubuntu/Debian requires a slight modification to the bootargs line vs. Angstrom, 'ro' vs 'rw'.

Add/Edit ubuntu.cmd 

setenv bootcmd 'mmc init; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000'
setenv bootargs 'console=ttyS2,115200n8 console=tty0 root=/dev/mmcblk0p2 rootwait rootfstype=ext3 ro vram=12M omapfb.mode=dvi:1280x720MR-16@60'
boot

Note: If you created an ext2 root filesystem then change "ext3" above to "ext2"

Use mkimage create to actual *.scr file for U-Boot: 

mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Ubuntu 9.10" -d ./ubuntu.cmd ./ubuntu.scr

Copy uImage and boot.scr

Mount your SD card fat32 partition (assuming /dev/sdX1) and copy the uImage and boot.scr to the first partition.

Note: if your system automounts the mmc card, just issue "sudo umount /dev/sdX1 && sudo umount /dev/sdX2" 

mkdir -p ./tmp
sudo mount /dev/sdX1 ./tmp
sudo cp ./uImage ./tmp/uImage

Beagle:
sudo cp ./ubuntu.scr ./tmp/boot.scr

IGEPv2:
sudo cp ./ubuntu.scr ./tmp/boot.ini

sudo umount ./tmp

Copy the Ubuntu rootfs

Mount your SD card's ext3 partition (assuming /dev/sdX2) and 'untar' the rootfs into it. 

mkdir -p ./tmp
sudo mount /dev/sdX2 ./tmp
sudo tar xfp armel-rootfs-*.tgz -C ./tmp
sudo umount ./tmp

Karmic: (9.10) boot fixup

util-linux-ng 2.16 causes this

Edit /etc/fstab 

mkdir -p ./tmp
sudo mount /dev/sdX2 ./tmp
sudo gedit ./tmp/etc/fstab
add:
/dev/mmcblk0p2   /   ext3   errors=remount-ro   0   1

Note change the above "ext3" to "ext2" if the root filesystem is ext2

Add/Edit /etc/e2fsck.conf 

sudo gedit ./tmp/etc/e2fsck.conf

[problems]

# Superblock last mount time is in the future (PR_0_FUTURE_SB_LAST_MOUNT).
0x000031 = {
    preen_ok = true
    preen_nomessage = true
} 

# Superblock last write time is in the future (PR_0_FUTURE_SB_LAST_WRITE).
0x000032 = {
    preen_ok = true
    preen_nomessage = true
}

Add karmic updates to /etc/apt/sources.list 

sudo gedit ./tmp/etc/apt/sources.list

deb http://ports.ubuntu.com/ubuntu-ports karmic-updates main universe

Finally 

cd ./tmp
sync 
cd ..
sudo umount ./tmp

You can now place the SD card into the BeagleBoard and start up the BeagleBoard.

Please be patient as the first boot can take a couple of minutes.

You should be presented with a x-window login screen. If you logged into X windows but do not get a full desktop with window management then execute the command "x-session-manager" at the terminal.

Development PC or Beagleboard: System Setup on the (ext2/ext3) Partition

Enable Network Access

Modify /etc/network/interfaces 

auto eth0
iface eth0 inet dhcp

Manual: From the Command line 

sudo ifconfig eth0 up
sudo dhclient eth0

or: 

sudo ifconfig -a
sudo dhclient ethX

Additional Network Setup Information can be found HERE

Advanced

Install Kernel Image

Script File

Every Kernel upload going further on rcn-ee.net will now have an 'install-me.sh' file in the same directory.. 

example: http://www.rcn-ee.net/deb/kernel/beagle/karmic/v2.6.32.7-x7.1/

wget http://rcn-ee.net/deb/kernel/beagle/karmic/v2.6.32.7-x7.1/install-me.sh
sudo /bin/bash install-me.sh

Note: vmlinuz symbolic link (yes <or> no)...

Reboot with your new uImage

Upgrade X-loader and U-boot

Compatible with Bx,C2/3/4

Requires MMC card.. 

bzr branch lp:~beagleboard-kernel/+junk/omap-flasher
cd omap-flasher
./mk_mmc.sh --mmc /dev/sdX

1: Place MMC card in Beagle
2: Push/Hold User Button
3: Apply Power
4: After U-boot loads, let off User Button
5: Wait for Flashing to end
6: Power down, remove/edit boot.scr from MMC card

Depending on what's in NAND, you might still have to stop and do this: 

nand erase 260000 20000
reset

What the script does: 

fatload mmc 0:1 0x80200000 x-load.bin.ift
nandecc hw
nand erase 0 80000
nand write 0x80200000 0 20000
nand write 0x80200000 20000 20000
nand write 0x80200000 40000 20000
nand write 0x80200000 60000 20000
		
fatload mmc 0:1 0x80300000 u-boot.bin
nandecc sw
nand erase 80000 160000
nand write 0x80300000 80000 160000
nand erase 260000 20000
reset

SGX Video Acceleration

Use a "corporate email" and download the latest (3.01.00.02): 

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/gfxsdk/latest/index_FDS.html

Kernel Modules

An older version of these instructions was adapted for the IGEPv2 platform - if you are following this tutorial and have an IGEPv2, consider using http://wiki.jmaustin.org/wiki/IgepSGXUbuntu instead

Use the "build_sgx_module.sh" script in 2.6-stable, module source is now in the *.bin 

https://code.launchpad.net/~beagleboard-kernel/+junk/2.6-stable

Directions: 

bzr branch lp:~beagleboard-kernel/+junk/2.6-stable
cd 2.6-stable
. build_kernel.sh
. build_sgx_modules.sh

Copy the *.uImage and extract the matching *.modules.tar.gz from the deploy directory to your SD card.

Copy the GFX_Linux_SDK.tar.gz examples to either your SD card or another media (large file) then boot your omap board.

Run depmod: 

sudo depmod -a omaplfb

Tweak System Libraries: 

sudo ln -sf /usr/lib/libXdmcp.so.6.0.0 /usr/lib/libXdmcp.so.0
sudo ln -sf /usr/lib/libXau.so.6.0.0 /usr/lib/libXau.so.0

Startup Script

For 3.01.00.02

Copy /opt/pvr/pvr script:

Jaunty: 

sudo cp /opt/pvr/pvr /etc/rcS.d/S60pvr.sh
sudo chmod +x /etc/rcS.d/S60pvr.sh

Karmic/Lucid: 

sudo cp /opt/pvr/pvr /etc/init.d/pvr
sudo chmod +x /etc/init.d/pvr
sudo update-rc.d pvr defaults

Note, if your updating.. 

cat /opt/pvr/pvr | sudo tee /etc/init.d/pvr > /dev/null

Test SGX with a DEMO

In GFX_Linux_SDK: 

cd OGLES/SDKPackage/Binaries/CommonX11/Demos/ChameleonMan
./OGLESChameleonMan

Trouble Shooting

sudo rm /etc/powervr-esrev
sudo depmod -a omaplfb
sudo /etc/init.d/pvr restart

DSP

This is still a major work in progress...

Xorg omapfb Drivers

By default Ubuntu will try to use the FBDEV video driver, however for the beagleboard we can take advantage of a more software optimized driver (still not using the sgx video hardware) using the NEON extensions of the Cortex-A8 core.

cat /var/log/Xorg.0.log | grep FBDEV 

(II) FBDEV: driver for framebuffer: fbdev
(II) FBDEV(0): using default device
(II) FBDEV(0): Creating default Display subsection in Screen section
(==) FBDEV(0): Depth 16, (==) framebuffer bpp 16
(==) FBDEV(0): RGB weight 565

Login into Ubuntu and open a new terminal, xorg has to be running..

xvinfo -display :0.0 

X-Video Extension version 2.2
screen #0
 no adaptors present

Drivers

Note: Backport from Karmic

Note: These are built with neon optimizations: http://git.debian.org/?p=collab-maint/xf86-video-omapfb.git;a=blob;f=debian/rules;h=c2f0d5391c96c5abb60b1e691ad86bb27e0c17d8;hb=HEAD (line 48/49)

Jaunty: 

wget -c http://rcn-ee.homeip.net:81/dl/deb-sbuild/jaunty/xorg-drivers/xserver-xorg-video-omap3_0.1.1-2_armel.deb
sudo dpkg -i xserver-xorg-video-omap3_0.1.1-2_armel.deb

Karmic: 

sudo apt-get install xserver-xorg-video-omap3

xorg.conf

Only Jaunty and Karmic:

/etc/X11/xorg.conf 

Section "Monitor"
    Identifier "Configured Monitor"
EndSection

Section "Screen"
    Identifier "Default Screen"
    Device "Configured Video Device"
    #Limited by SGX?
    DefaultDepth 16
EndSection

Section "Device"
    Identifier "Configured Video Device"
    Driver "omapfb"
    Option "fb" "/dev/fb0"
EndSection

To verify it was correctly installed, reboot and:

cat /var/log/Xorg.0.log | grep omapfb 

(II) LoadModule: "omapfb"
(II) Loading /usr/lib/xorg/modules/drivers//omapfb_drv.so
(II) Module omapfb: vendor="X.Org Foundation"
(II) omapfb: Driver for OMAP framebuffer (omapfb) and external LCD controllers:
(WW) Error opening /sys/devices/platform/omapfb/ctrl/name: No such file or directory
(II) omapfb(0): VideoRAM: 1800KiB (SDRAM)
(II) omapfb(0): Creating default Display subsection in Screen section
(**) omapfb(0): Depth 16, (--) framebuffer bpp 16
(==) omapfb(0): RGB weight 565
(==) omapfb(0): Default visual is TrueColor
(--) omapfb(0): Virtual size is 1280x720 (pitch 1280)
(**) omapfb(0):  Built-in mode "current"
(==) omapfb(0): DPI set to (96, 96)
(II) omapfb(0): DPMS enabled
(II) omapfb(0): Video plane capabilities:
(II) omapfb(0): Video plane supports the following image formats:
(II) omapfb(0): XVideo extension initialized

Login into Ubuntu and open a new terminal, xorg has to be running..

xvinfo -display :0.0 

X-Video Extension version 2.2
screen #0
  Adaptor #0: "OMAP XV adaptor"
    number of ports: 1
    port base: 56
    operations supported: PutImage 
    supported visuals:
      depth 16, visualID 0x21
    number of attributes: 1
    etc..

S-Video

Sorry I don't have an S-Video TV, and this is documented in the source, so it would be really great if someone could fill this section in... --RobertCNelson 21:32, 13 July 2009 (UTC)

NTSC

Please use v2.6.29-oer44.1:

PAL

Please use v2.6.29-oer44.1:

Building Kernel

https://launchpad.net/~beagleboard-kernel

Register on launchpad.net, install bzr 

sudo apt-get install bzr

Download SRC 

bzr branch lp:~beagleboard-kernel/+junk/2.6-stable (2.6.32)
bzr branch lp:~beagleboard-kernel/+junk/2.6-dev (2.6.32)

Build Kernel 

. build_kernel.sh

Build SGX Modules 

. build_sgx_modules.sh

Build Deb File 

. build_deb.sh

Bugs & Workarounds

Karmic

Root on external USB, fsck always errors's on boot, fsck.ext3 never fixes it, and no real time clock on board (Rev Bx and C2 (C3 has backup battery hookup)) 

mount -o remount,rw /

Script found here:

nano /etc/e2fsck.conf 

[problems]

# Superblock last mount time is in the future (PR_0_FUTURE_SB_LAST_MOUNT).
0x000031 = {
    preen_ok = true
    preen_nomessage = true
}

# Superblock last write time is in the future (PR_0_FUTURE_SB_LAST_WRITE).
0x000032 = {
    preen_ok = true
    preen_nomessage = true
}

Ubuntu Software

Web Apps

Midori

Given that the BeagleBoard has fewer resources than a desktop a light weight browser is more responsive. Midori is a light weight browser that still supports flash etc It is available from the standard repositories. http://en.wikipedia.org/wiki/Midori_%28web_browser%29

Surveillance

Motion

If you have a video source (webcam, IP cam etc) which appears as /dev/video0 etc then you can use the Linux Surveillance software "motion" to monitor the video stream and record periods of activity.

Motion is also available from the standard repositories. http://www.debian-administration.org/article/An_Introduction_to_Video_Surveillance_with_%27Motion%27 Using a 960x720 resolution webcam with 15 fps rate under the UVC driver the Rev C BeagleBoard under Xubuntu reports ~60% CPU utilisation.

To make the BeagleBoard automatically start recording on boot do the following:

  • Auto Login - run "gdmsetup" from a terminal and select a user to automatically login
  • Sessions - make sure you don't save any previous xwindows sessions so that it doesn't prompt you for which one you want
  • motion.conf - amend /etc/motion/motion.conf to the settings you want (ie video output directory, record only video, record in mpeg4, set frame rate etc). Do this with "sudo medit /etc/motion/motion.conf" at a prompt.
  • Boot script - create a new script in /etc/rc2.d called "S65motion_client" and set permissions appropriately ("sudo chmod 777 /etc/rc2.d/S65motion_client"). Then edit the file so it has the following text in it:
#! /bin/sh
/usr/bin/motion -c /etc/motion/motion.conf

This will now launch the motion client as root when you boot up.

Also note that unless your BeagleBoard can remember the time (battery backed up clock installed) the timestamps will not be correct until you update the time. If your BeagleBoard has an Internet Connection this can be achieved with the ntpdate app.

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