13.3. Reinstalling GRUB on IBM Power machines
You can reinstall the GRUB boot loader on the Power PC Reference Platform (PReP) boot partition of your IBM Power system. Always reinstall GRUB after updating the GRUB packages.
This overwrites the existing GRUB to install the new GRUB. Ensure that the system does not cause data corruption or boot crash during the installation.
Procedure
List the disk partition that stores GRUB:
# bootlist -m normal -o sda1Reinstall GRUB on the disk partition:
# grub2-install partitionReplace
partitionwith the identified GRUB partition, such as/dev/sda1.Reboot your system for the changes to take effect:
# rebootSee the
grub-install(1)man page on your system for more information.