On 10/04/2026 8:13 pm, Joe wrote:
I have an Acer laptop about eight years old. Its UEFI implementation
leaves a bit to be desired, it implements NewxtBook but not
DefaultBoot, and it resets the UEFI boot order if I change it.
The history:
Frankly speaking, I am lost in the description of previous
configurations. My impression is that UEFI implementation may work with
shim+grub.
Can you boot at least live image from a USB drive?
My suggestion is to look into (and maybe post output of)
efibootmgr -v
lsblk --fs
and inspect list of files on every partition that resembles EFI System
Partition. grub.cfg there may contain a hint where the "wrong" version
resides.
Is there an option in the firmware to select EFI file to boot from?
