The error in your logs is: Setting up shim-signed (1.32+0.9+1474479173.6c180c6-1ubuntu1) ... Installing for x86_64-efi platform. show_order(): Illegal seek Skipping unreadable variable "Boot0000": Illegal seek Skipping unreadable variable "Boot0002": Illegal seek Skipping unreadable variable "Boot2001": Illegal seek Skipping unreadable variable "Boot2002": Illegal seek Skipping unreadable variable "Boot2003": Illegal seek Could not prepare Boot variable: Operation not permitted Installation finished. No error reported. od: /sys/firmware/efi/efivars/SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c: Illegal seek /usr/sbin/update-secureboot-policy: 52: [: Illegal number: frontend: Fatal IO error 11 (Resource temporarily unavailable) on X server :1. dpkg: error processing package shim-signed (--configure): subprocess installed post-installation script returned error exit status 1
This suggests that your firmware is in some inconsistent state, as it should be possible to read the contents of these EFI variables from within the OS, but you get failures when doing so during the upgrade; but your bug report contains the content of these variables, meaning they were readable at some later point. Were you later able to complete the upgrade? I.e., does 'sudo apt -f install' return immediately in a terminal? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1741687 Title: package shim-signed 1.32+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1741687/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
