On Sat Sep 03, 2011 at 04:35:39 -0700, Simon Matthews wrote: > On Fri, Sep 2, 2011 at 8:42 AM, Timothy D. Lenz <tlenz@xxxxxxxxxx> wrote: > > > >> > >> How did you install Grub on the second drive? I have seen some > >> instructions on the web that would not allow the system to boot if the > >> first drive failed or was removed. > >> > > > > > > I think this is how I did it, at least it is what I had in my notes: > > > > grub-install /dev/sda && grub-install /dev/sdb > > > > And this is from my notes also. It was from an IRC chat. Don't know if it > > was the raid channel or the grub channel: > > > > [14:02] <Jordan_U> Vorg: No. First, what is the output of grub-install > > --version? > > [14:02] <Vorg> (GNU GRUB 1.98~20100115-1) > > [14:04] <Jordan_U> Vorg: Ok, then run "grub-install /dev/sda && grub-install > > /dev/sdb" (where sda and sdb are the members of the array) > > > > Which is exactly my point. You installed grub on /dev/sdb such that it > would boot off /dev/sdb. But if /dev/sda has failed, on reboot, the > hard drive that was /dev/sdb is now /dev/sda, but Grub is still > looking for its files on the non-existent /dev/sdb. > The way I do it is to run grub, then for each drive do: device (hd0) /dev/sdX root (hd0,0) setup (hd0) That should set up each drive to boot up as the first drive. Cheers, Robin -- ___ ( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> | / / ) | Little Jim says .... | // !! | "He fallen in de water !!" |
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