Grub

The lovely people at HP put a SmartArray 5i controller in phobos, which is all fine and well except they had to muck around with the drivers. Devices are available as /dev/cciss/cNdN instead of the /dev/sdX like everything else.

Basically poor little old grub can't cope with this madness to you need to do a little work to get the boot loader functioning correctly.

Once install (or booted via the rescue cd ;-) make sure the boot partition is mounted and run the following:

# grub --batch 
grub> device (hd0) /dev/cciss/c0d0
grub> root (hd0,0)
grub> setup (hd0)
grub> quit