[CentOS] Raid 1 problems

Bowie Bailey Bowie_Bailey at BUC.com
Thu Mar 2 18:24:17 UTC 2006

Mace Eliason wrote:
> Hi,
> I have setup raid on a new server and have found that if I remove one
> drive it will boot but if I remove the other it says missing OS.
> I am using two 18.2Gig SCSI drives, using software raid 1.
> I have it setup with the following drives in this order.
> /boot
> swap
> /
> all are mirrored between the two drives.  I remember a while back that
> their was a problem with grub would that be the problem here?
> Why does it work on one drive and not the other?

I guess that answers Steve's question from that last email... :)

The problem is that grub does not update the boot block on both
drives.  Dig through the list archives for instructions on fixing it.


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