You will need to use your RedHat Linux Boot Disk.
If you do not have a boot disk, you can use the RedHat CD in order to boot into
Rescue Mode.
http://www.redhat.com/docs/manuals/l...mode-boot.html
Once the system is booted, log-in as root and, at the command line, type:
Code:
/sbin/grub-install /dev/hda