Stuck on unsupported kernel 5.19.0_rt10-3

kernel 5.19.0_rt10-3
Everything was running fine till last update then nvidia drivers caused a no-boot issue stuck at root clean.
Switching kernels results gives “mount: /sys/firmware/efi/efivars: unknown filesystem type ‘efivarfs’”
I just want to switch to a stable Ls kernel. I don’t have a dual boot so why the efi?

2 posts were merged into an existing topic: Nvidia utils update causing no boot

I believe you were already told not to create duplicate topics.
cc @moderators