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PostPosted: Tue Jan 18, 2011 5:25 pm 
Total Newbie

Joined: Tue Jan 18, 2011 4:19 am
Posts: 2

Having a little problemette...

I have installed u-boot on my LS2 but if fails to find 0:1 boot/vmlinuz says its no a valid EFT image or some such. I followed the instructions in Impatient uboot install or so I thought but I probably screwed it. I obviously dont have direct access to the LS other than through netcat and the u-boot console. what do I need to do to get this booting from a valid Linux kernel.

From what I read on u-boot I should be able to load the image from the file-system, I unpacked it to /mnt/hda/temp or alternatively from a network resourse via TFTP. Can anyone give me instructions on how I might get a kernel image to boot so I can then fix the rest

I will try to connect again tonight and get some more info visa-a-vie file mounts etc via ext2ls. will update this post then.

OK Edit ====================

Right schoolboy error.... I created the boot directory on ide 0:3 not ide 0:1 therefor the vmlinuz image is in the wrong place.
How can I boot from that image?



PostPosted: Tue Jan 18, 2011 9:57 pm 
Total Newbie

Joined: Tue Jan 18, 2011 4:19 am
Posts: 2
Ok... Ive worked it out by looking at the command variables in printenv and substituting the area I placed my image in for the default one..

I managed to get the default kernel to boot and went for the substitution 2.6.22

This hasnt booted successfully just ended up with the slowly flashing power light.

Any Idea why this might be... happy to provide more detail

this is the output in nc

U-Boot 1.1.4 LiSt V2 (mips) 1.0.1 (Sep 20 2007 - 00:42:23)
stdin : nc
stdout: nc
stderr: nc
IDE: Bus 0: ..OK Bus 1: OK
Device 0: Model: WDC WD2500BB-00GUC0 Firm: 08.02D08 Ser#: W -DCWLA87820831
Type: Hard Disk
Supports 48-bit addressing
Capacity: 238475.1 MB = 232.8 GB (488397168 x 512)
Boot in 01 seconds ('s' to stop)...
Loading 0:1:boot/vmlinuz

1789270 bytes read
## Booting image at 82000000 ...
Found gzip-ed image at 0x82000000. Uncompressing ...done
Loading .text @ 0x80100000 (2841024 bytes)
Loading __ex_table @ 0x803b59c0 (6584 bytes)
Loading .rodata @ 0x803b8000 (223304 bytes)
Loading .pci_fixup @ 0x803ee848 (1320 bytes)
Loading __ksymtab @ 0x803eed70 (18448 bytes)
Loading __ksymtab_gpl @ 0x803f3580 (4664 bytes)
Loading __ksymtab_gpl_future @ 0x803f47b8 (24 bytes)
Loading __kcrctab @ 0x803f47d0 (9224 bytes)
Loading __kcrctab_gpl @ 0x803f6bd8 (2332 bytes)
Loading __kcrctab_gpl_future @ 0x803f74f4 (12 bytes)
Loading __ksymtab_strings @ 0x803f7500 (53616 bytes)
Loading __param @ 0x80404670 (860 bytes)
Loading .data @ 0x80406000 (123552 bytes)
Loading .data.cacheline_aligned @ 0x80425000 (192 bytes)
Loading .init.text @ 0x80426000 (141940 bytes)
Loading .init.data @ 0x80448a78 (12492 bytes)
Loading .init.setup @ 0x8044bb50 (744 bytes)
Loading .initcall.init @ 0x8044be38 (516 bytes)
Loading .con_initcall.init @ 0x8044c03c (8 bytes)
Loading .exit.text @ 0x8044c044 (3164 bytes)
Loading .init.ramfs @ 0x8044d000 (134 bytes)
Clearing .bss @ 0x8044e000 (119584 bytes)

Starting kernel @ 0x80426000...


PostPosted: Tue Feb 22, 2011 8:59 pm 

Joined: Wed Jan 19, 2011 8:00 pm
Posts: 10
Location: Germany

I've just seen your post. I dont understand much of all the things hier, but I'm just trying to understand u-boot. Have you forgotten this step:

After creating your kernel image use mkimage to add a tiny header containing the load and execute address for the image, like this (all on one line):

localhost:$ mkimage -A arm -O linux -T kernel -C none -a 0x8000 -e 0x8000 -n "Linux 2.6.6" -d linux.bin uImage.bin

see http://www.linuxfordevices.com/c/a/Linux-For-Devices-Articles/Introduction-to-Das-UBoot-the-universal-open-source-bootloader/

PostPosted: Wed Feb 23, 2011 12:38 am 
User avatar

Joined: Thu Jul 14, 2005 4:38 pm
Posts: 941
Location: England

I think you could tftp foonas-em in from uboot and go from there?


http://downloads.foonas.org/foonas-em/0 ... /lsmipsel/

PostPosted: Wed Feb 23, 2011 9:23 am 

Joined: Tue Aug 24, 2010 7:25 pm
Posts: 10

I am not sure if I ever got 2.6.22 to boot on my LS2.

I would go with davy gravy's It can be found under the 2.6 project pages I think. Your version of U-boot does not to my knowledge allow the use of uboot images. You can boot elf and vmlinuz.

The kernel substitution would probably entail transferring your hard drive to a desktop at this point.

Before you do that, however, you should make sure netconsole is set up correctly in the kernel options. You need to set up something like

setenv bootargs root=/dev/[sh]da[13] netconsole=6666@,@

Make sure the slashes get in there. You probably have to escape them with '\'.

Also, you should rule out any inode problems if you created 0:3 yourself. It should be created with -I 64 if I remember correctly.

Best of luck,

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