Reinstalling the Linux Boot Loader

In many cases, the GRUB boot loader can mistakenly be deleted, corrupted, or replaced by other
operating systems.
The following steps detail the process on how GRUB is reinstalled on the master boot record:
• Boot the system from an installation boot medium.
• Type linux rescue at the installation boot prompt to enter the rescue environment.
• Type chroot /mnt/sysimage to mount the root partition.
• Type /sbin/grub-install /dev/hda to reinstall the GRUB boot loader, where /dev/hda is
the boot partition.
• Review the /boot/grub/grub.conf le, as additional entries may be needed for GRUB to control
additional operating systems.
• Reboot the system