I had a ploblem with our Raid 1 on Supermicro server,

Today i create backup image with Clonezilla, But when i recovery image is can't boot the system.

STEP1: Clear Raid configured
STEP2: Re-configure RAID 1
SETP3: Recovery image with Clonezilla

Is error message "Missing Operating System"

How to reinstall GRUB2 EFI on BtrFS?

I try... mount for reinstall grub but is not working.

mount /dev/sda2 /mnt #sda2 boot filesystem on BtrFS

ERROR: "Cannot allocate memory"