package:grub-efi-amd64-signed:1.142.8+2.04-1ubuntu26.6
Setting up grub-efi-amd64-signed (1.142.8+2.04-1ubuntu26.6) ...
Installing grub to /boot/efi.
Installing for x86_64-efi platform.
grub-install: warning: Cannot set EFI variable BootOrder.
grub-install: warning: efivarfs_set_variable: writing to fd 8 failed: Invalid argument.
grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Invalid argument.
grub-install: error: failed to register the EFI boot entry: Invalid argument.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1