Not sure exactly how I got around this, but I think I left all windows open; opened a new terminal; ran apt update again, and that successfully completed which allowed me to close the upgrade window. I rebooted, and the system seems stable.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575711 Title: package linux-image-extra-4.2.0-25-generic 4.2.0-25.30 failed to install/upgrade: package linux-image-extra-4.2.0-25-generic is not ready for configuration cannot configure (current status 'half- installed') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575711/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs