Thanks for following up. Closing as invalid then, since it doesn't sound like we have enough information to diagnose.
** Changed in: shim-signed (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633398 Title: (Ubuntu-GNOME 16.10, initial install) package shim-signed 1.21.3+0.9+1465500757.14a5905.is.0.8-0ubuntu3 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/1633398/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs