Installing GRUB on the MBR of a second drive
From MEPIS Documentation Wiki
GRUB is meant to be installed on the MBR of the first BIOS drive, however, with some tinkering it might work even if you install it on another drive:
- For example in case you installed GRUB on a second drive you need to edit /boot/grub/menu.lst (as root) and change the reference from (hd1,*) to (hd0,*) because, if you boot from that drive, BIOS will "fool" GRUB into believing that that's the first disk of the system.