grub errors after fresh install, partiions with md and lvm

[lesmikesell at gmail.com (Les Mikesell)]

On Mon, 2006-01-16 at 20:59, Keith Morse wrote:

> A couple of questions come to mind.  Can grub boot off of a raid defined
> partition?

No, but with RAID1 it doesn't matter, since it can use either of
the mirrored partitions.

> If yes, what magic incantations would be appropriate?
> If no,  should I just revert to a bare ext3 partition and don't
> implement raid on
>   /boot?

Centos doesn't install grub correctly for RAID.  Just do
the install by hand:
http://www.dirigo.net/tuxTips/avoidingProblems/GrubMdMbr.php
You may have to experiment to see how to make the second
drive boot if the first one fails.  With SCSI, the drives
shift up in both the grub and linux device names.  With
IDE they don't.  I'm not sure about SATA.   In the worst
case you could change the cable and repeat the grub install
procedure if you get the 2nd drive wrong and your primary
fails.

-- 
  Les Mikesell
    lesmikesell@xxxxxxxxx