I followed the test case from the bug description using the version of update-manager in zesty-proposed, 17.04.8, and can confirm that a new error message was displayed which suggested using 'sudo apt autoremove' to clean up old kernels.
** Tags removed: verification-needed-zesty ** Tags added: verification-done-zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1477455 Title: Incorrect instructions leave automatic updates blocked when /boot is full To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1477455/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs