Boot into FC4 rescue mode, search for/mount the FC4 installation and do a native grub installation.
1) Boot using the 1st installation CD and enter “linux rescue” at the first prompt (boot: linux rescue).
2) Answer the questions and execute “chroot /mnt/sysimage” after the search for linux installations is done.
3) Start the grub shell from the command prompt:
4) At the grub prompt (grub>), run the commands find, root, setup and exit as are described in the Grub Manual ( http://www.gnu.org/software/grub/man...-GRUB-natively
grub> find /grub/stage1
- - OR - -
grub> find /boot/grub/stage1
(Use the 1st find if you made a separate /boot partition and use the 2nd find if /boot is in the “/” partition.)
grub> root (hd1,...)
(Where (hd1,...) is what “find” found (probably (hd1,0) or (hd1,1)).
It might look like this: “grub> root (hd1,1) .)
grub> setup (hd0)
If you have trouble with FC4 rescue mode, you can also install grub natively using a Live-CD like Knoppix.
The grub manual also includes a section about making a grub boot floppy, which can be a real lifesaver. For those without floppy drives, you can also make a grub boot USB flash drive using almost the same commands.