Your bug report says that: EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: EFI variables are not supported on this system.
If efibootmgr says that UEFI is not supported, why do you end up with shim trying to be installed? Did you do something to manually select a UEFI option? What is the output of 'ls -l /sys/firmware/efi' on this system? ** Changed in: shim-signed (Ubuntu) Status: New => Incomplete ** Changed in: shim-signed (Ubuntu) Assignee: (unassigned) => Mathieu Trudel-Lapierre (cyphermox) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1758075 Title: package shim-signed 1.33.1+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1758075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs