[CentOS] Software RAID muck up

Sat Jun 25 19:57:09 UTC 2005
Les Mikesell <lesmikesell at gmail.com>

On Sat, 2005-06-25 at 14:00, Timothy Sandel wrote:

> > 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.

Grub will do that too if you manually install it on the other
drive.  The details of how you do that will vary depending on
how your bios sees the other drive if the primary one fails.
Grub doesn't have to be re-installed at every config file
update though, so it isn't that bad to do it once.

-- 
  Les Mikesell
    lesmikesell at gmail.com