[CentOS] Help finishing off Centos 7 RAID install

On 1/11/19 3:22 AM, Gary Stainburn wrote:
> I then installed grub2 on sdb
>
> yum install yum install grub2-efi-modules
> grub2-install /dev/sdb


If you want to manually provide redundant EFI system partitions (no 
RAID1), all you need to do is run efibootmgr to add a second entry.  You 
don't need to install grub2-efi-modules or run grub2-install.  Use:

efibootmgr -c -w -L 'CentOS Linux' -d /dev/sdb -p 1 -l 'EFI\centos\shim.efi'

... where the option to -d is the name of the drive containing the EFI 
system partition and the option to -p is the EFI system partition number.

For reference, that command will appear in /var/log/anaconda/program.log 
after any normal installation.