I recently rebuilt my file server at home on a Linux software RAID array, but after rebooting last night, it no longer boots. It hangs at "grub loading stage2". When I boot rescue mode from the Fedora install CD, I can see my RAID1 ext3 /boot partition under /mnt/sysimage, and everything in it looks fine (kernels, initrds, etc. are all there) but it's not booting.

My first thought was that the boot sector got corrupted, but, I don't know if/how the boot sector comes into play on a RAID array. I tried running grub-install /dev/md0 but it doesn't recognize md0 as a block device so it won't put the boot sector there.

Was I naive to expect a RAID1 boot parititon to work properly? Should I just have a plain old primary boot partition and not worry about making it redundant?