Topic: Grub-install.real error
Following the documentation "Restoring Grub 2 Boot Loader I encountered the folllowing:
# grub2-install /dev/sda
grub-install.real : error
/usr/lib/grub/i386-pc/modinfo.sh does not exist. Please specify --target or --directory
I was running from a Linux 18.3 distribution disk.