Re: Grub2 reinstall on raid1 system.
On Thu, Jan 13, 2011 at 08:23:11AM -0600, Jack Schneider wrote:
>
> I have a raid1 based W/S running Debian Squeeze uptodate. (was
> until ~7 days ago) There are 4 drives, 2 of which had never been
> used or formatted. I configured a new array using Disk Utility from a
> live Ubuntu CD. That's where I screwed up... The end result was the
> names of the arrays were changed on the working 2 drives. IE: /dev/md0
> to /dev/126 and /dev/md1 became md127. Strangely the md2 array which I
> setup on the added drives remains as /dev/md2. My root partition is/was
> on /dev/md0. The result is that Grub2 fails to boot the / array. I have
> tried three REINSTALLING GRUB procedures from Sysresccd online docs
> and many others GNU.org, Ubuntu etc. The errors occur when I try to
> mount the partition with the /boot directory. 'Complains about file
> system type 'linux_raid_member' This machine has worked for 3 years
> flawlessly.. Can anyone help with this? Or point me to a place or link
> to get this fixed. Google doesn't help... I can't find a
> article/posting where it ended successfully.
> I have considered a full reinstall after Squeeze goes stable, since this
> O/S is a crufty upgrade from sarge over time. But useless now..
>
You might want to try configuring grub and fstab to use UUID's instead
of /dev/mdX. That removes the possibility that the kernel will change
the mdX designations.
Use blkid to find out the UUID's of your partitions.
-Rob
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