Steve, I can confirm the error persists when using apt -f install. See output below
sudo apt -f install [sudo] password for fwellington: Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up shim-signed (1.34.9+13-0ubuntu2) ... Installing for x86_64-efi platform. Could not delete variable: Invalid argument grub-install: error: efibootmgr failed to register the boot entry: Block device required. dpkg: error processing package shim-signed (--configure): installed shim-signed package post-installation script subprocess returned error exit status 1 Setting up grub-efi-amd64-signed (1.93+2.02-2ubuntu8) ... Installing for x86_64-efi platform. Could not delete variable: Invalid argument grub-install: error: efibootmgr failed to register the boot entry: Block device required. dpkg: error processing package grub-efi-amd64-signed (--configure): installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1 Errors were encountered while processing: shim-signed grub-efi-amd64-signed E: Sub-process /usr/bin/dpkg returned an error code (1) Versions: shim-signed (1.34.9+13-0ubuntu2) grub-efi-amd64-signed (1.93+2.02-2ubuntu8) I experienced this error while performing the LTS upgrade yesterday. Information about my machine: Dell XPS 13 9343 i7 8GB RAM 256GB SSD, with about 45 GB dedicated to my Ubuntu installation. I would appreciate if you could provide any help, as I am now afraid to power off my laptop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744424 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/1744424/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
