Re: Configuring RAID-1 boot partition
On Mon, Nov 22, 2010 at 11:06 AM, Peter Tenenbaum
<peter.g.tenenbaum@gmail.com> wrote:
>
> I'm running squeeze on my desktop and recently decided to configure it for
> RAID-1 as part of my recovery from a hard drive failure. I found an article
> online about how to do this:
> http://linuxconfig.org/Linux_Software_Raid_1_Setup . I followed the
> article's recipe as best I could, but could not in general do exactly as was
> shown for setting up the boot partition as the instructions seem to
> correspond to GRUB 1 and I am running GRUB 2 (well, 1.98). When I attempted
> to boot off of my RAID-1 boot partition, I got into grub and then got the
> following message:
>
> error: file not found!
> Entering rescue mode...
> grub rescue>
>
> At the moment I am booting off of a Debian Live DVD. Here is the content of
> the grub.cfg file on the RAID boot partition:
>
> set default=0
> set timeout=5
>
> menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-amd64' {
> set root=(hd0,1)
> echo 'Loading Linux 2.6.32-5-amd64 ...'
> linux /vmlinuz-2.6.32-5-amd64 ro root=/dev/md3 quiet
> echo 'Loading initial ramdisk ...'
> initrd /initrd.img-2.6.32-5-amd64
> }
>
> Note that /dev/md3 is the RAID-1 array which is going to be root in the
> fully booted system, and it is made of /dev/sda3 and /dev/sdb3. The boot
> array is /dev/md1, which is made of /dev/sda1 and /dev/sdb1.
Boot from the DVD, mount md3 and md1, chroot to md3, run "grub-install
/dev/sda", "grub-install /dev/sdb", "update-grub", "update-initramfs
-u -k $(uname -r)", exit, and try rebooting into your install.
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