Hello!
On Wed, 2021-07-21 at 12:51 +0200, John Paul Adrian Glaubitz wrote: > Are you seeing any log messages indicating that mountvirtfs() failed > during the installation of the grub-installer udeb? So *that*'s what the postinst file is for! ;-) No, I see no messages indicating any errors. I just double-checked by monitoring `tail -f /var/log/syslog | grep efivars` during installation. I did see a debug message I added right before the call to mountvirtfs but no error message. Also, if I understand correctly, in case of an error the script would `exit 1` and the installation process would stop. Kind regards, Sebastian