I have been trying to troubleshoot some GRUB issues I've been having.
Sometimes I get errors like "GRUB: hard disk not found" or "GRUB: Error
15". I have since loaded up knoppix, ran install-grub a few times, but
haven't been able to determine the proper syntax for my root partition.
I currently have root (hd0,0) set, but after Grub loads and selects the
kernel to boot I get "Error 15: File not found". Is there a command to
have grub detect my root partition? (i.e. if it would return (hd0,1) or
(hd3,2)) I think that's the biggest problem I'm having, I don't know
what the root partition should be! (I've tried several combinations of
hd0, but I have 5 disks and am not sure of all the combinations).
Some things I do know, after mounting /dev/hda1 (which is the disk that
has /boot) in knoppix, I chroot to that drive and run grub-install, I
get all my disks back with something similar to:
but the updated menu.lst file doesn't do any good when I reboot.
Any tidbits of helpfulness?