surpress grub2 messages on EFI
check file for corruption and fallback to golden image if necessary
“invalid tar archive” error when running GRUB2 as a Coreboot ELF Payload
grub2-mkrescue fails to create boot disk with grub menu
Why does big black box appear over my GRUB2 theme when booting?
How to create a iso file by grub-mkrescue and assign its label?
grub2 on my embedded Board Corrupted, entered into grub rescue mode