I'm trying to load CentOS 6.3 on a used server based on a Tyan Tomcat n3400b motherboard. The first 2 drives are configured as a RAID mirror in the BIOS and the remaining 4 drives are not configured but apparently still have RAID metadata on them. I hadn't yet figured out how to fix that but went ahead and loaded the OS on the mirrored set.
After pulling out a drive from the unused set, grub stopped at the grub prompt. I can find (hd0,0)/grub/grub.conf but when I cat it I get corruption with recognizable fragments. I can use setup (hd0) without issue but reboots keep dumping me at the grub prompt. I booted into the rescue environment of the minimal install CD and grub.conf looks just fine. It's only corrupt when I look at it from the grub boot environment. What could be going wrong?