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Re: grub2 on power6 box.
From: |
Vladimir 'φ-coder/phcoder' Serbinenko |
Subject: |
Re: grub2 on power6 box. |
Date: |
Fri, 23 Jul 2010 07:56:27 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100620 Icedove/3.0.5 |
On 07/22/2010 11:23 PM, Lennart Sorensen wrote:
> I am trying to use grub2 to boot an IBM p520 power6 box. I know yaboot
> can do the job, but it doesn't deal with software raid, ext4, LVM or
> anything else useful.
>
> I have managed to get as far as booting to a grub prompt from disk.
> Unfortunately it doesn't appear to be seeing any disks at that point.
>
> The way I got it this far was to create an 8MB (smallest cfdisk would
> make) PReP boot partition, and then run grub-mkimage -n -o /tmp/grub -O
> powerpc-ieee1275 *.mod in the ieee1275 grub directory. I then dd'd
> /tmp/grub to /dev/sda1 (the PReP boot partition).
>
>
You need to add -p "<your /boot/grub in grub notation>". Also avoid the
raid and lvm-related modules you don't need. OFW exposes ghost devices
so assembling raids which involves looking at all devices is slow
> At boot, the firmware loads the partition and runs it and after a few
> seconds I get a grub prompt.
>
> I know I don't need all the modules, but starting with all of them
> seemed simpler.
>
> So is this supposed to work, or is there still some ofpath handling
> or other things that have to be fixed before grub2 can detect disks on
> this machine? If so, I will try to do it, but some hints would be handy.
> It certainly looks very close to working.
>
> Thanks.
>
>
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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- grub2 on power6 box., Lennart Sorensen, 2010/07/22
- Re: grub2 on power6 box.,
Vladimir 'φ-coder/phcoder' Serbinenko <=
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Vladimir 'φ-coder/phcoder' Serbinenko, 2010/07/23
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/23
- Re: grub2 on power6 box., Vladimir 'φ-coder/phcoder' Serbinenko, 2010/07/28
- Re: grub2 on power6 box., Lennart Sorensen, 2010/07/28
- Re: grub2 on power6 box., Vladimir 'φ-coder/phcoder' Serbinenko, 2010/07/28