[Wlug] [Fwd: Clarify: GRUB setup on RAID1]

[Brett Russ]

Charles R. Anderson wrote:
> There are multiple RAID1 partitions on two disks, and grub is installed
> to /dev/sda.  I don't believe grub is mirrored across disks, though.
> Since software RAID on Linux works partition-by-partition, and not on
> whole disks, I don't see how you could automatically mirror the MBR
> across disks.  You could install grub to multiple MBR's, though, one for
> each disk.  It wouldn't gain you anything unless your BIOS can boot from
> the other disks, though.

To clarify my question, I wanted to make sure GRUB has the capability to 
access (for example) /boot/grub/grub.conf if /boot is not a separate 
partition but rather part of / which is a RAID1.  As far as I know, 
RAID1 configured units are very similar to standard filesystems except 
in the superblock.  It is difference between similar and the same that 
worries me.

The goal is to get rid of the separate (non-RAID) /boot partition OR 
make the /boot partition into a RAID1.  Either one would require GRUB to 
read from it successfully.

thanks!
Brett