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List:       linux-raid
Subject:    Re: Raid5 boot failure after grow
From:       Phil Turmel <philip () turmel ! org>
Date:       2011-07-20 17:16:39
Message-ID: 4E270D77.2090609 () turmel ! org
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On 07/20/2011 12:39 PM, Shaun Reich wrote:
> Do you happen to know how to rebuild it when I can't boot into it?
> I've tried booting into a livecd, mounting the raid volume and the
> /boot, running 'dracut --mdadmconf "initramfs-$(uname -r).img" $(uname
> -r)', copying the generated initramfs into the separate /boot
> partition, and making grub try to boot it, but it simply is not
> working.

I'm not familiar with Fedora, so I don't know what tools it has on the liveCD.  Look \
for a tool that will mount everything for you then put you in a chroot.  Then run the \
appropriate update-initramfs utility within the chroot.

> It seems to be because it's actually using the livecd's kernel and
> mods, which is rather unfortunate and would probably be why it is
> unable to boot. I've also tried simply doing it from the livecd (with
> the proper mdadm.conf) and then copying that file (from the livecd),
> into /boot. That at least gets me from a blank blinking cursor, to a
> message about a failed modprobe attempt for /lib/modules, prior to
> falling back to a shell.
> 
> Ideas?

HTH,

Phil
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