[CentOS] Software RAID muck up

>
> Grub doesn't actually boot from a RAID - it just happens to work
> because RAID1 looks the same on the underlying single partitions.
> Boot with the CD and point the grub config to one or the other
> of the hd partitions holding /boot.  If you get an error, that
> one might be corrupt and you can try the other.   If you get
> to the point where the kernel is loaded and you can't mount
> root, then the problem could be with RAID, but that part will
> probably work.
I always use lilo for mirrored servers.  It will boot from either drive when 
one fails.