I don't know how to solve the locked UEFI, but there is Shim, a efi-stub which is signed and can be configured to validate your own keys.
Here is the first documentation I found: https://wiki.gentoo.org/wiki/Shim.
Comment on Anon tries running live USB Linux on his dad's computer
dditty@lemmy.dbzer0.com 1 month ago
I’m trying to get secure boot working on cachyOS using sbctl but my Razer Blade laptop’s bios seems locked and won’t let get it in setup mode. Anyone know if it’s possible to clear vendor keys on razer’s American mega trends UEFI?
green_copper@kbin.earth 1 month ago
black_flag@sh.itjust.works 1 month ago
Why the fuck is this the place where you ask that?
Gullible@sh.itjust.works 1 month ago
You might get an answer on !linux@lemmy.world. I had a similar issue and eventually returned a minipc because of it.