Head_on_a_Stick wrote:Chrisdb wrote:why do I need a BIOS partition when I should run in UEFI mode?
You don't.
A BIOS boot partition is needed by GRUB to start a non-UEFI system on a GPT disk:
https://en.wikipedia.org/wiki/BIOS_boot ... onents.svg
As you do not have such a partition then you cannot be booting in non-UEFI mode with GRUB.
So what is the best approach to do this?
sunrat wrote:You said Debian starts but goes to a blank screen. Maybe you have a graphics problem rather than a grub problem. Once you manage to get back to having Debian boot with grub-efi, try adding "nomodeset" to the grub kernel line. You may get a basic graphical interface from where you can set up your graphics properly.
But it works in legacy mode without problems