Recovering mbr boot corruption on CentOS is relatively easy. Boot from the install media in rescue mode, chroot into /mnt/sysimage, then grub2-install onto /de

Recovering mbr boot corruption on CentOS is relatively easy. Boot from the install media in rescue mode, chroot into /mnt/sysimage, then grub2-install onto /dev/sda. I've never had to do this outside of the redhat realm, but the procedure is not complex after a few rounds to commit it to memory.