Linux 2.1) by reinstalling grub and grub-install just won't work.
grub-install assumes that the boot device is in the form /dev/hda or
/dev/sda and since most ProLiant use a SmartArray RAID controller its
boot device is typically /dev/cciss/c0d0.
So, in order to recover this is what I did:
* In /etc/grub.conf (a link to /boot/grub/grub.conf) uncomment the
line that looks like this:
* Make sure /boot/grub/device.map is setup right and looks like this:
* Run grub like this:
/sbin/grub --batch --device-map=/boot/grub/device.map
grub> root (hd0,0)
grub> setup (hd0)
Hope that helps!