[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: problem installing trixie - no EFI



On 7/17/25 13:29, Andy Smith wrote:
Hi,

On Thu, Jul 17, 2025 at 12:42:29PM +0200, Flo wrote:
For me it looks like that the installer thinks that I am on a non EFI
system?

Any ideas?

Yes, it isn't actually booting in EFI mode. I don't think this will be
an issue with Debian because by the time the Debian installer runs the
system has already decided whether it is booting UEFI or legacy BIOS.

Possibly I could be wrong about that, in that possibly your
motherboard's firmware doesn't see the install media as EFI bpptable so
is falling back to legacy BIOS.

I think I'd have another go looking through the BIOS settings to ensure
there's no way it is set to legacy booting or fallback to legacy
booting.


My BIOS settings only say UEFI is enabled. And that drives over 2TB can't be booted in legacy mode. Mine is 3TB.

I'm missing a EFI partition. The installer doesn't create one. In earlier times it did (on this computer and on my laptop as well). And I can't create it manually. I can only create a FAT32 partition, /boot/efi, which stays empty while installing.

Is it possible that my motherboard can find this disk to be bootable without a proper efi partition?

Flo



Reply to: