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Re: grub2 on power6 box.

From: Lennart Sorensen
Subject: Re: grub2 on power6 box.
Date: Fri, 23 Jul 2010 09:57:37 -0400
User-agent: Mutt/1.5.18 (2008-05-17)

On Fri, Jul 23, 2010 at 07:56:27AM +0200, Vladimir 'φ-coder/phcoder' Serbinenko 
> 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

I will try that (although I think I did).

I can't even get it to do ls on any disk or anything.  It really seems
to be behaving as if it doesn't detect any disks.

Len Sorensen

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