On 07/04/2025 10:36, hlyg wrote:
in bios Setup, i can choose "Legacy" for mbr disks or "UEFI" for gpt disks
if i press F12 during boot, options are shown, i can boot both mbr and
gpt disks
It seems you have solved your issue (using BIOS menu), so feel free to
ignore my question. It is pure curiosity. I just feel some sort of
confusion.
I expect that partition table type (MBR/msdos or GPT) on the drive and
boot mode (BIOS/Legacy/compatibility or UEFI) are independent and any
combination is possible. For BIOS mode MBR boot code is required, while
for UEFI it is necessary to create EFI System Partition with .efi files
and a boot entry in NVRAM.
My reading of your initial message in this thread is that you decided to
use MBR (msdos) partition table. What is the boot type: UEFI or BIOS? I
am curious what is reported by "efibootmgr -v". Do you have a partition
with EFI/debian/*.efi files?
