Difference between revisions of "Flameman/sgi"

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(dmesg)
(last working kernel 2.6.17-r14)
Line 111: Line 111:
 
==== dmesg ====
 
==== dmesg ====
 
* [[Flameman/sgi/octane-dmesg#kernel-2.6.29]]
 
* [[Flameman/sgi/octane-dmesg#kernel-2.6.29]]
 +
  
 
=== last working kernel 2.6.17-r14 ===
 
=== last working kernel 2.6.17-r14 ===
 +
kernel 2.6.17-r14, we are stopped at the year 2006, running a 2008 stage3 rootfs
  
kernel 2.6.17-r14, we are stopped at the year 2006, running a 2008 stage3 rootfs, and this is the kernel support status
+
==== status ====
 
<table>
 
<table>
 
<tr><td rowspan="4" bgcolor="#a0ffa0">CPU and memory</td><td bgcolor="#a0ffa0">64-bit kernel support</td><td bgcolor="#a0ffa0">Yes</td><td bgcolor="#a0ffa0"></td></tr>
 
<tr><td rowspan="4" bgcolor="#a0ffa0">CPU and memory</td><td bgcolor="#a0ffa0">64-bit kernel support</td><td bgcolor="#a0ffa0">Yes</td><td bgcolor="#a0ffa0"></td></tr>
Line 170: Line 172:
 
</table>
 
</table>
  
 +
==== Things to keep in mind when building kernel for an SGI Octane ====
  
* Things to keep in mind when building a kernel for an SGI Octane:
+
* Impact (MGRAS) console and X driver work, please report any bugs.
* - Impact (MGRAS) console and X driver work, please report any bugs.
+
* VPro (Odyssey) console works, but no X driver exists yet.
* - VPro (Odyssey) console works, but no X driver exists yet.
+
* PCI Card Cages should work for many devices, except certain types like
* - PCI Card Cages should work for many devices, except certain types like
+
* PCI-to-PCI bridges (USB hubs, USB flash card readers for example).
*   PCI-to-PCI bridges (USB hubs, USB flash card readers for example).
+
* Do not use OHCI-based USB cards in Octane.  They're broke on this machine.
* - Do not use OHCI-based USB cards in Octane.  They're broke on this machine.
+
* Patches are welcome to fix the issue.
*   Patches are welcome to fix the issue.
+
* Equally, UHCI Cards are showing issues in this release, but should still function somewhat.  This issue manifests itself when using pl2303 USB->Serial adapters.
* - Equally, UHCI Cards are showing issues in this release, but should still
+
* Other XIO-based devices like MENET and various Impact addons remain
*   function somewhat.  This issue manifests itself when using pl2303 USB->Serial
+
* untested and are not guaranteed to work.  This applies to various digital video conversion boards as well.
*   adapters.
+
* - Other XIO-based devices like MENET and various Impact addons remain
+
*   untested and are not guaranteed to work.  This applies to various
+
*   digital video conversion boards as well.
+
 
+
 
+
* Applying patch-2.6.29.1.patch (-p1) ...                                                                                                                          [ ok ]
+
* Applying mipsgit-2.6.29-20090324.diff.patch (-p1) ...                                                                                                            [ ok ]
+
 
+
>>> Unpacking mips-sources-2.6.29-patches-v3.tar.bz2 to /var/tmp/portage/sys-kernel/mips-sources-2.6.29.1/work
+
* Applying 1001_2.6.28-ip22-vino-64bit-ioctl-fixes.patch ...                                                                                                        [ ok ]
+
* Applying 2001_2.6.11-ip32-mace-is-always-eth0.patch ...                                                                                                          [ ok ]
+
* Applying 2002_2.6.24-ip32-rm7k-l3-support.patch ...                                                                                                              [ ok ]
+
* Applying 4001_2.6.28-ths-mips-tweaks.patch ...                                                                                                                    [ ok ]
+
* Applying 4002_2.6.23-seccomp-no-default.patch ...                                                                                                                [ ok ]
+
* Applying 4003_2.6.11-add-byteorder-to-proc.patch ...                                                                                                              [ ok ]
+
* Applying 4004_2.6.28-enable-old-rtc-drivers.patch ...                                                                                                            [ ok ]
+
* Applying 4005_2.6.28-disable-format-security.patch ...                                                                                                            [ ok ]
+
* Applying 4006_2.6.29-ext4-automatically-allocate-delay-allocated-blocks-on-rename.patch ...                                                                      [ ok ]
+
* Applying 4007_2.6.29-ext4-automatically-allocate-delay-allocated-blocks-on-close.patch ...                                                                        [ ok ]
+
* Applying 4008_2.6.29-ext4-add-EXT4_IOC_ALLOC_DA_BLKS-ioctl.patch ...                                                                                              [ ok ]
+
* Applying 4009_2.6.29-ext4-fix-discard-of-inode-prealloc-space-with-delayed-allocation.patch ...                                                                  [ ok ]
+
* Applying 5011_2.6.29-ioc3-metadriver-r27.patch ...                                                                                                                [ ok ]
+
* Applying 5012_2.6.22-ioc3-revert_commit_691cd0c.patch ...                                                                                                        [ ok ]
+
* Applying 5041_2.6.29-ip30-octane-support-r28.patch ...                                                                                                            [ ok ]
+
* Applying 8001_2.6.29-o32-fix-sys_llseek.patch ...                                                                                                            [ ok ]
+
  
 
==== dmesg ====
 
==== dmesg ====
<pre>
 
version 2.6.17.14-crazed-snow-weasel-sgi-octane-2xr12k
 
gcc version 4.1.2 (Gentoo 4.1.2 p1.0.1))
 
SMP Mon Jun 2 23:15:07 CEST 2008
 
 
ARCH: SGI-IP30
 
PROMLIB: ARC firmware Version 64 Revision 0
 
CPU revision is: 00000e35
 
FPU revision is: 00000900
 
Silicon Graphics Octane (IP30) support: (c) 2004, 2005 Stanislaw Skowronek.
 
Detected 2048 MB of physical memory.
 
Updating PROM memory size.
 
xtalk: Detected XBow (revision 2.0) at 0.
 
xtalk: Detected Heart (revision F) at 8.
 
xtalk: Detected HQ4 / ImpactSR (revision B) at 10.
 
xtalk: Detected Buzz / Odyssey (revision B) at 11.
 
xtalk: Detected Bridge (revision D) at 15.
 
BRIDGE chip at xtalk:15, initializing...
 
Determined physical RAM map:
 
memory: 0000000000004000 @ 0000000000000000 (reserved)
 
memory: 0000000000efc000 @ 0000000020004000 (usable)
 
memory: 0000000000100000 @ 0000000020f00000 (ROM data)
 
memory: 000000003eff0000 @ 0000000021000000 (usable)
 
memory: 0000000040010000 @ 000000005fff0000 (reserved)
 
memory: 0000000040000000 @ 0000000060000000 (usable)
 
SGI Octane system with >2GB physical memory, limiting DMA.
 
On node 0 totalpages: 655360
 
  DMA zone: 655360 pages, LIFO batch:31
 
Built 1 zonelists
 
Kernel command line: root=/dev/sda3 ro
 
Primary instruction cache 32kB, physically tagged, 2-way, linesize 64 bytes.
 
Primary data cache 32kB, 2-way, linesize 32 bytes.
 
Unified secondary cache 2048kB 2-way, linesize 128 bytes.
 
Synthesized TLB refill handler (41 instructions).
 
Synthesized TLB load handler fastpath (55 instructions).
 
Synthesized TLB store handler fastpath (55 instructions).
 
Synthesized TLB modify handler fastpath (54 instructions).
 
IP30: interrupt controller initialized.
 
PID hash table entries: 4096 (order: 12, 32768 bytes)
 
IP30: initializing timer.
 
400 MHz CPU detected
 
Using 200.490 MHz high precision timer.
 
Console: colour dummy device 80x25
 
Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
 
Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
 
Memory: 2048768k/2096048k available (3287k kernel code, 46788k reserved, 806k data, 228k init, 0k highmem)
 
Calibrating delay loop... 598.01 BogoMIPS (lpj=299008)
 
Mount-cache hash table entries: 256
 
Checking for 'wait' instruction...  unavailable.
 
Checking for the multiply/shift bug... no.
 
Checking for the daddi bug... no.
 
Checking for the daddiu bug... no.
 
CPU revision is: 00000e35
 
FPU revision is: 00000900
 
Primary instruction cache 32kB, physically tagged, 2-way, linesize 64 bytes.
 
Primary data cache 32kB, 2-way, linesize 32 bytes.
 
Unified secondary cache 2048kB 2-way, linesize 128 bytes.
 
Synthesized TLB refill handler (41 instructions).
 
Calibrating delay loop... 600.06 BogoMIPS (lpj=300032)
 
Brought up 2 CPUs
 
migration_cost=2000
 
NET: Registered protocol family 16
 
SCSI subsystem initialized
 
usbcore: registered new driver usbfs
 
usbcore: registered new driver hub
 
PCI: Scanning bus 0000:00
 
PCI: Found 0000:00:00.0 [1077/1020] 000100 00
 
PCI: Calling quirk a8000000201b2bc8 for 0000:00:00.0
 
PCI: Found 0000:00:01.0 [1077/1020] 000100 00
 
PCI: Calling quirk a8000000201b2bc8 for 0000:00:01.0
 
PCI: Found 0000:00:02.0 [10a9/0003] 00ff00 00
 
PCI: Calling quirk a8000000201b2bc8 for 0000:00:02.0
 
PCI: Found 0000:00:03.0 [10a9/0005] 000000 00
 
PCI: Calling quirk a8000000201b2bc8 for 0000:00:03.0
 
IP30: HEART ATTACK! Caught errors: 0x1040!
 
    interrupt #63
 
    interrupt #57
 
PCI: Fixups for bus 0000:00
 
PCI: Bus scan for 0000:00 returning with max=00
 
  got res [1f200000:1f2fffff] bus [200000:2fffff] flags 200 for BAR 0 of 0000:00:02.0
 
PCI: moved device 0000:00:02.0 resource 0 (200) to 200000
 
  got res [1f300000:1f30ffff] bus [300000:30ffff] flags 7200 for BAR 6 of 0000:00:00.0
 
  got res [1f310000:1f31ffff] bus [310000:31ffff] flags 7200 for BAR 6 of 0000:00:01.0
 
  got res [1f320000:1f320fff] bus [320000:320fff] flags 200 for BAR 1 of 0000:00:00.0
 
PCI: moved device 0000:00:00.0 resource 1 (200) to 320000
 
  got res [1f321000:1f321fff] bus [321000:321fff] flags 200 for BAR 1 of 0000:00:01.0
 
PCI: moved device 0000:00:01.0 resource 1 (200) to 321000
 
  got res [1fa00000:1fa000ff] bus [a00000:a000ff] flags 101 for BAR 0 of 0000:00:00.0
 
PCI: moved device 0000:00:00.0 resource 0 (101) to a00000
 
  got res [1fa00400:1fa004ff] bus [a00400:a004ff] flags 101 for BAR 0 of 0000:00:01.0
 
PCI: moved device 0000:00:01.0 resource 0 (101) to a00400
 
PCI: fixup irq: (0000:00:00.0) got 8
 
PCI: fixup irq: (0000:00:01.0) got 9
 
PCI: fixup irq: (0000:00:02.0) got 10
 
PCI: fixup irq: (0000:00:03.0) got 11
 
NET: Registered protocol family 2
 
IP route cache hash table entries: 131072 (order: 8, 1048576 bytes)
 
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
 
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
 
TCP: Hash tables configured (established 262144 bind 65536)
 
TCP reno registered
 
EFS: 1.0a - http://aeschi.ch.eu.org/efs/
 
fuse init (API version 7.6)
 
BeFS version: 0.9.3
 
io scheduler noop registered
 
io scheduler anticipatory registered (default)
 
io scheduler deadline registered
 
io scheduler cfq registered
 
PCI: Calling quirk a8000000201b3de0 for 0000:00:00.0
 
PCI: Calling quirk a8000000202547d8 for 0000:00:00.0
 
PCI: Calling quirk a8000000201b3de0 for 0000:00:01.0
 
PCI: Calling quirk a8000000202547d8 for 0000:00:01.0
 
PCI: Calling quirk a8000000201b3de0 for 0000:00:02.0
 
PCI: Calling quirk a8000000202547d8 for 0000:00:02.0
 
PCI: Calling quirk a8000000202acbe8 for 0000:00:02.0
 
PCI: Calling quirk a8000000201b3de0 for 0000:00:03.0
 
PCI: Calling quirk a8000000202547d8 for 0000:00:03.0
 
PCI: Calling quirk a8000000202acbe8 for 0000:00:03.0
 
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
 
fakephp: Fake PCI Hot Plug Controller Driver
 
Console: switching to colour frame buffer device 160x64
 
fb0: ImpactSR 1RSS frame buffer device
 
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
 
loop: loaded (max 8 devices)
 
qla1280: QLA1040 found on PCI bus 0, dev 0
 
BRIDGE: IO #0, size 0x100 for little-endian 0000:00:00.0 --> direct I/O at bus 0x01000000 vma 0x000000f101000000
 
BRIDGE: Memory #1, size 0x1000 for little-endian 0000:00:00.0 --> direct 32-bit at bus 0x01000000 vma 0x000000f041000000
 
BRIDGE: Memory #6, size 0x10000 for little-endian 0000:00:00.0 --> direct 32-bit at bus 0x01010000 vma 0x000000f041010000
 
PCI: Enabling device 0000:00:00.0 (0006 -> 0007)
 
scsi(0:0): Resetting SCSI BUS
 
scsi0 : QLogic QLA1040 PCI to SCSI Host Adapter
 
      Firmware version:  7.65.06, Driver version 3.26
 
  Vendor: FUJITSU  Model: MAH3091MC        Rev: 0115
 
  Type:  Direct-Access                      ANSI SCSI revision: 04
 
scsi(0:0:1:0): Sync: period 10, offset 12
 
  Vendor: FUJITSU  Model: MAH3091MC        Rev: 0115
 
  Type:  Direct-Access                      ANSI SCSI revision: 04
 
scsi(0:0:2:0): Sync: period 10, offset 12
 
qla1280: QLA1040 found on PCI bus 0, dev 1
 
BRIDGE: IO #0, size 0x100 for little-endian 0000:00:01.0 --> direct I/O at bus 0x01000100 vma 0x000000f101000100
 
BRIDGE: Memory #1, size 0x1000 for little-endian 0000:00:01.0 --> direct 32-bit at bus 0x01020000 vma 0x000000f041020000
 
BRIDGE: Memory #6, size 0x10000 for little-endian 0000:00:01.0 --> direct 32-bit at bus 0x01030000 vma 0x000000f041030000
 
PCI: Enabling device 0000:00:01.0 (0006 -> 0007)
 
scsi(1:0): Resetting SCSI BUS
 
scsi1 : QLogic QLA1040 PCI to SCSI Host Adapter
 
      Firmware version:  7.65.06, Driver version 3.26
 
st: Version 20050830, fixed bufsize 32768, s/g segs 256
 
SCSI device sda: 17850264 512-byte hdwr sectors (9139 MB)
 
sda: Write Protect is off
 
sda: Mode Sense: ab 00 10 08
 
SCSI device sda: drive cache: write back w/ FUA
 
SCSI device sda: 17850264 512-byte hdwr sectors (9139 MB)
 
sda: Write Protect is off
 
sda: Mode Sense: ab 00 10 08
 
SCSI device sda: drive cache: write back w/ FUA
 
sda: sda1 sda2 sda3 sda9 sda11
 
sd 0:0:1:0: Attached scsi disk sda
 
SCSI device sdb: 17850264 512-byte hdwr sectors (9139 MB)
 
sdb: Write Protect is off
 
sdb: Mode Sense: ab 00 10 08
 
SCSI device sdb: drive cache: write back w/ FUA
 
SCSI device sdb: 17850264 512-byte hdwr sectors (9139 MB)
 
sdb: Write Protect is off
 
sdb: Mode Sense: ab 00 10 08
 
SCSI device sdb: drive cache: write back w/ FUA
 
sdb: sdb1
 
sd 0:0:2:0: Attached scsi disk sdb
 
usbmon: debugfs is not available
 
ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
 
USB Universal Host Controller Interface driver v3.0
 
Initializing USB Mass Storage driver...
 
usbcore: registered new driver usb-storage
 
USB Mass Storage support registered.
 
usbcore: registered new driver usbhid
 
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
 
mice: PS/2 mouse device common for all mice
 
Advanced Linux Sound Architecture Driver Version 1.0.11rc4 (Wed Mar 22 10:27:24 2006 UTC).
 
BRIDGE: Memory #0, size 0x2000 for little-endian 0000:00:03.0 --> direct 32-bit at bus 0x01040000 vma 0x000000f041040000
 
ALSA device list:
 
  #0: SGI RAD Audio at 0xf041040000
 
BRIDGE: Memory #0, size 0x100000 for little-endian 0000:00:02.0 --> direct 32-bit at bus 0x01100000 vma 0x000000f041100000
 
IOC3 part: [030-0891-003], serial: [KZG030] => class IP30 system
 
0000:00:02.0: ttyS0 at IOC3 0xf041120178 (irq = 64) is a 16550A
 
0000:00:02.0: ttyS1 at IOC3 0xf041120170 (irq = 64) is a 16550A
 
Ethernet address is 08:00:69:13:66:d4.
 
eth0: link up, 100Mbps, full-duplex, lpa 0x05E1
 
eth0: Using PHY 1, vendor 0x15f42, model 2, rev 3.
 
eth0: IOC3 SSRAM has 128 kbyte.
 
IOC3 Master Driver loaded for 0000:00:02.0
 
IPv4 over IPv4 tunneling driver
 
TCP bic registered
 
NET: Registered protocol family 1
 
NET: Registered protocol family 17
 
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
 
All bugs added by David S. Miller <davem@redhat.com>
 
atkbd.c: keyboard reset failed on ioc3/serio0kbd
 
kjournald starting.  Commit interval 5 seconds
 
EXT3-fs: mounted filesystem with ordered data mode.
 
VFS: Mounted root (ext3 filesystem) readonly.
 
Freeing prom memory: 1024kb freed
 
Freeing firmware memory: 1048576k freed
 
Freeing unused kernel memory: 228k freed
 
atkbd.c: keyboard reset failed on ioc3/serio0aux
 
EXT3 FS on sda3, internal journal
 
Adding 506036k swap on /dev/sda2.  Priority:-1 extents:1 across:506036k
 
kjournald starting.  Commit interval 5 seconds
 
EXT3-fs warning: checktime reached, running e2fsck is recommended
 
EXT3 FS on sdb1, internal journal
 
EXT3-fs: mounted filesystem with ordered data mode.</pre>
 
  
 
==== add on board support ====
 
==== add on board support ====

Revision as of 07:30, 26 July 2013

For more interesting projects done by Flameman, be sure to check out his project index

machine

indy

8 PinMini DIN (SGI) DB25 Plug Name
4 7 GND
5 2 TD
3 3 RD
1 8 CD
7 4 DTR

add on board support

board over gio32 kernel support
scsi add on dunno
phobos g130 dunno


note: if you inclide the gfx framebuffer support in the kernel, then you CAN NOT boot with missing gfx hw board! The kernel is expecting to find it, if it is missing it will panic!

Suggestion: do not include the framebuffer, use uart console only

o2

add on board support

board over pci kernel support
_ dunno


about sgi o2

impact

add on board support

board over gio64 / eisa kernel support
_ dunno


fuel

linux is not running yet, but OpenBSD is going to run

octane2

kernel status

kernel note
2.6.17 pretty stable, used in production
2.6.29 bugs in the scheduler, not booting on 2xR12K

last kernel 2.6.29

Option? 5 Command Monitor. Type "exit" to return to the menu. >> bootp(): Setting $netaddr to 192.168.1.3 (from server ) Obtaining from server 13597184+304112 entry: 0xa800000020009cd0 - dead -

It does not work on 2xR12K@400Mhz, it boots on 1xR12K system

dmesg


last working kernel 2.6.17-r14

kernel 2.6.17-r14, we are stopped at the year 2006, running a 2008 stage3 rootfs

status

CPU and memory64-bit kernel supportYes
Memory controller supportYessupport for >1GB added in 2.6.12-R22
Interrupt supportYes
SMP supportYes
XIO supportBasic mapping WPwork in progress - XIO API
Device discovery WPit basically works, but waits for XIO API
Flow control WPsoon to come in the new XIO API
PCI supportBasic mappingYes
Device discoveryYes
64-bit DMAYes
32-bit DMAYes
System bridgeYes
Additional bridgesYes
IOC3 supportEthernetYesalso for IP27
SuperIO meta-deviceYesalso for IP27
Serial portsYesalso for IP27
RS232/RS422 mode switchNo =(low priority task, but no real problems
Parallel portNo =(unavailability of non-standard cable for testing
Real Time ClockYes
Software power downYes
Voltage monitorNo =(low priority task, not enough information
LEDsYes
PS/2 portsYes
SCSI supportInternal devicesYes
External devicesYes
RAD1 supportData DMA supportYes
Status DMA supportYes
Analog outputYes
Analog inputYes
AES outputYes
AES inputYes
ADAT outputNo =(no test equipment
ADAT inputNo =(no test equipment
ALSA PCM supportYesplease report bugs!
ALSA mixer supportYes
ImpactSR supportLinux console supportYes
MPlayer output supportYes
X Window supportYesshadowfb driver
24-bit depth setupYes
Video mode changeNo =(not enough information
Image DMAYes
Hardware cursorYes
2D accelerationYes
3D accelerationNo =(not enough information
Flow controlNo =(not enough information, lack of XIO flow control
Multiple cardsNo =(lack of test hardware
VPro supportLinux console supportYes
X Window supportNo =(complexity of accelerated X drivers
24-bit depth setupYes
2D accelerationYes
3D accelerationYes
Image DMANo =(it's not really easy

Things to keep in mind when building kernel for an SGI Octane

  • Impact (MGRAS) console and X driver work, please report any bugs.
  • VPro (Odyssey) console works, but no X driver exists yet.
  • PCI Card Cages should work for many devices, except certain types like
  • PCI-to-PCI bridges (USB hubs, USB flash card readers for example).
  • Do not use OHCI-based USB cards in Octane. They're broke on this machine.
  • Patches are welcome to fix the issue.
  • Equally, UHCI Cards are showing issues in this release, but should still function somewhat. This issue manifests itself when using pl2303 USB->Serial adapters.
  • Other XIO-based devices like MENET and various Impact addons remain
  • untested and are not guaranteed to work. This applies to various digital video conversion boards as well.

dmesg

add on board support

board over xio24 / pci cartridge kernel support
v6 over xio24 2.6.17: no X11 support, pretty text console
impactSR over xio24 2.6.17: pretty X11 support, pretty text console

What is the state of hardware support on this machine?

  • V6, V8 gfx: X11 support doesn't exist, and likely won't for a very long while. Stan (the IP30 Port Author) recently got console mode running on this card, but from what I understand, this is a rather complex piece of video hardware. Remote X works, however.
  • Impact gfx: X11 is working
  • Onboard sound works well enough from what I hear. I tested several MP3s from console via mpg123, and they worked well. A new patch coming out next week (Jul 23-24) will enable support for the optical inputs/outputs for AES (ADAT capabilities will not be supported).
  • Onboard Scsi works like a charm. It wasn't entirely usable about 3 weeks ago due to reliance on the old qlogicisp driver, but with some very recent fixes to qla1280, it has replaced qlogicisp. I now run a RAID5 array using 3 50G seagate drives on my Octane, and so far, everything works great (and hdparm reports ~17.4MB/s throughput).
  • Onboard Ethernet works fine too. The IOC3 driver was recently re-written to make IOC3 more of a Bus device with peripherals hanging off of it, which makes IOC3 less of a nightmare device from a coder's standpoint (but not by much).

boot examples

XFS support by SGI

dual boot, idea

It should be possible if you set up IRIX as per normal and leave space on the drive for Linux. Install Linux as per the guide except when you get to set up the PROM. you'll want to leave that as is. Then you'd set up arcload to boot up Linux on demand.

  • To boot IRIX, just switch the machine on.
  • To boot Linux, drop to the monitor prompt and run boot -f arcload.


interesting url