Install Grub

(2018-08-21)

Problem

RHEL 7 doesn't have "grub" command for making RAID-1 disks bootable.

Alleged Solution

...assuming /boot on /dev/mdXXX is on sdaX and sdbX

# grub2-install /dev/sda
# grub2-install /dev/sdb

"Alleged" for now because I have not had the occasion to boot off a dead disk yet. I don't have access to the requisite hot-swap hardware to test it properly.