abdelkader belahcene wrote: > but it fails to reboot from the second disk alone. > although i installed grub in both disks
Are you very certain that you installed grub on both disks? Because failure to do this is a very common reason that systems won't boot from the second disk. Previous versions of Debian such as Lenny did not automatically install onto both disks. I believe that is now improved on Squeeze and later and grub is automatically installed on both disks IIRC. For the previous grub these instructions will install it on the second disk. Assuming /dev/sdb is your second disk, adjust if needed. # grub grub> device (hd0) /dev/sdb grub> root (hd0,0) grub> setup (hd0) grub> quit For the new Grub2, I don't know. I haven't been able to learn it yet. Perhaps someone else will be kind enough to step up and say what needs to be done to install grub2 on a second disk. Probably just: grub-install /dev/sdb Bob
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