On Wed, Apr 06, 2022 at 10:47:30AM -0400, Robbie Harwood wrote:
majid hussain mhussaincov93@gmx.com writes:
hi, could someone kindly tell me if my toshiba l750 machine has EFI support? i'm blind and efi/bios screens are in accessible.
Based on a web query, it most likely has EFI support, but it also supports BIOS-compat (CSM?).
Easiest is probably to do:
ls /sys/firmware/efi
This tells you whether the machine booted using UEFI. anaconda will set up a UEFI-capable system if booted that way, unless partitioning is overridden to prevent that.
If it didn't boot using UEFI today, that doesn't mean it can't (you could check with a live image as well). UEFI tends to be enabled on machines made these days by default for Windows logo requirements, but this is firmware land, and there are no absolutes.
Changing UEFI setting in the firmware is a big problem. We know that a) it can only be done by tweaking settings in the firmware interface which looks different on every machine, b) users find it very hard in general, and c) for blind users it's virtually impossible.
So even if a machine has UEFI, if it is currently in BIOS-compat mode, to some extent it's like if it didn't have UEFI.
Zbyszek