Can grub be installed on a md array?
mhaney at ercbroadband.org
Wed Oct 15 17:25:38 UTC 2008
John Hubbard wrote:
> I am trying to set up my system (8.04 server) with software raid. I got
> most of the way through the install and then it failed to install grub.
> I tried installing lilo and that failed as well. I feel like the
> problem is that my /boot partition is part of a 4 disk raid 5 array. Is
> it possible to install your boot loader onto a raid array? When setting
> up a partition on a raid array, there is no option to make the partition
> bootable. I guess this makes sense but the question is how do I get
> around this? Does the logical partition on each of the disks that makes
> up the /boot raid need to be made bootable? Does just one of those
> partitions need to be made bootable?
It /can/ be done, but it is NOT recommended. If a drive fails, it might
make the system unbootable.
My personal recommendation for this is to have a boot drive mirrored,
then RAID the data drives. It is NEVER a good idea to make the boot
drive part of the RAID array.
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