On 05/04/2025 21:54, hlyg wrote:
i press F12 during Dell boot, a list of options show under section "UEFI BOOT:" there are 2 items: FreeBSD and debian but all 3 disks installed use mbr, no wonder they don't work [...] how to remove them?
I am curious which way you boot Debian if UEFI entry does not work. I do not expect to see UEFI options in compatibility (BIOS) mode. Maybe UI of Dell UEFI is just more flexible than HP where switching between UEFI and compatibility mode requires reboot.
UEFI almost certainly can boot from mbr (DOS) partition, otherwise it will be impossible to boot from USB pen drive. Perhaps it is possible to make that option working instead of removing it. I admit that specific implementation of UEFI may be an obstacle.
