package:grub-efi-amd64-signed:1.93.2+2.02-2ubuntu8.1
Setting up grub-efi-amd64-signed (1.93.2+2.02-2ubuntu8.1) ...
Installazione per la piattaforma x86_64-efi.
Could not delete variable: Invalid argument
grub-install: errore: efibootmgr failed to register the boot entry: Necessario un dispositivo a blocchi.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1