more RAID whoe's

Gary Stainburn gary.stainburn at ringways.co.uk
Tue Aug 26 14:22:20 UTC 2008


Part of the problem is that the /boot/grub/menu.lst wasn't written properly.

The initrd line was completely missing and the kernel line didn't have the 
filename correct.  The working entry now looks like:

#boot=/dev/md0
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.25-14.fc9)
        root (hd0,0)
        kernel /vmlinuz-2.6.25-14.fc9.i686 ro root=/dev/md2 rhgb quiet
        initrd /initrd-2.6.25-14.fc9.i686.img

Now when I boot up I'm back where I started with the two RAID devices not 
working.  I get:

Decompressing Linux... done.
Booting the kernel.
Red Hat mash version 6.0.52 starting
mdadm: no devices found for /dev/md2
mdadm: no devices found for /dev/md1
EXT3-fs: unable to read superblock
............

If I then re-boot using the rescure CD and run mdadm --examine /dev/md2 I get:

sh-3.2# mdadm --examine /dev/md2
mdadm: No md superblock detected on /dev/md2	

If I unmount everything and do it on /tmp/md2 I get the same result, and also 
with /dev/md0 and /tmp/md0.

I presume this is the problem, how do I fix it?

-- 
Gary Stainburn
 
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