Re: Problems installing BRUB with RAID5

[Peter Teunissen <lists@onemanifest.net>]

On 30-sep-2006, at 22:26, Gilles Mocellin wrote:

> Le samedi 30 septembre 2006 22:17, Chris Willard a écrit :
> > Hi All,
> >
> > I have a pc with 3x40GB IDE drives.
> >
> > I have 2 RAID 5 devices setup-
> >
> > /dev/md0 = 3 x 38GB as /
> > /dev/md1 = 3 x 2GB as SWAP
> >
> > Debian base installs OK but when I get to the Grub installation I  
> > get a
> > "Fatal Error" message.
> >
> > I am telling Grub to install on /dev/md0 but it won't install.
>
> Grub must be installed on a real disk.
> Grub 2 as just receive a patch allowing RAID and LVM support.
>
> For now, you must install grub on your drives (1, 2 or even the 3  
> making md0).
> The root filesystem can be /dev/md0.

You could also make a small RAID 1 set consisting of 3 100MB partions  
and set them up as /boot. Then turn the rest into a RAID 5 set, and  
partition it (preferably with LVM) into /swap and /root. Then grub  
will install on all three RAID1 partitions and if one disk fails, it  
will simply start from the other RAID 1 disks.

Peter