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Old 25th July 2007, 09:07
lano lano is offline
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Here is, how I solved the problem. Problem was, that grub wasnt installed in /dev/sdb. So I did folowing steps:

First I edited /boot/grub/menu.lst to make sure that system will boot from sdb.
Code:
vi /boot/grub/menu.lst
On top of existing stanza I put:
Code:
title           Debian GNU/Linux, kernel 2.6.8-2-386 (hd1)
root            (hd1,0)
kernel          /vmlinuz-2.6.8-2-386 root=/dev/md2 ro
initrd          /initrd.img-2.6.8-2-386
savedefault
boot
then I started grub command shell `grub`
Code:
grub
At the 'grub' shell prompt I created new boot records for both drives:
Code:
root (hd0,0)
setup (hd0)
root (hd1,0)
setup (hd1)
quit
Test went fine this time.
Final step was adding fallback entry, that will automaticlly choose the next item in the menu if the first one fails. In /boot/grub/menu.lst I added entry `fallback 1` just below the `default 0` entry.
Code:
vi /boot/grub/menu.lst
Code:
default 0
fallback 1
Replacement of the simulated failed disk went perfect by Falko's instructions here http://www.howtoforge.com/replacing_..._a_raid1_array .

Any comment or better solution is apritiated.

David
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