Mastodawn

Power loss + dead 3V battery

So I set the date/time and switched some #UEFI settings to my usual preferences, but I still get the "Reboot and Select proper Boot device" message 😠

From USB rescue system :
cp /mnt/efi/EFI/Debian/grubx64.efi /mnt/efi/shellx64.efi

And now stupid ASRock firmware can boot the normal system from the hard drive 😞

Well, I was totally unaware of "EFI variables in NVRAM".
I must look at it now in order to restore the normal boot process.

I miss the good old times of BIOS/MBR systems.

Fixed (easily)!
#efibootmgr is a great tool.