On Mon, Nov 21, 2022 at 7:50 AM Dashi Cao <[email protected]> wrote: > > Hello all, > Is there any variable in grub configuration that can tell if current > boot iis from legacy bios or UEFI?
Yes, you can check the environment variable $grub_platform. It is "pc" for legacy BIOS and "efi" for UEFI.
