Grub issue

[Andrew Wood <andrewjameswood@ymail.com>]

Hi Can someone help me with a Grub problem please.

I have 2 disks in a RAID1 mirrror with 2 partitions. sda1 & sdb1 = md0 
swap parition and sda2 & sdb2 = md1 root parition. The disks are MBR 
style partitiions.

For some reason Grub has got corrupted on both and it wont boot.


Ive tried running the following at the grub prompt


ls (hd0,msdos2)

which says file system is ext2

set boot=(hd0,msdos2)

set prefix=(hd0,msdos2)/boot/grub

insmod normal

error: file /boot/grub/i386-pc/normal.mod not found


Can anyone please help me restore the MBR to both disks?


Thanks

Andrew