Public bug reported: In Ubuntu 14.04 the update manager will pop up telling you a restart is required for certain types of update (kernel, etc). However, it defaults to "restart now" which is unsafe, as an accidental <return> with that pop-up in focus will try to reboot your machine, and that might be quite unwanted at this time. The default should always be safe - in this case the 'later' button. I see this has been fixed in the latests release 15.04.3 but the change has not been back-ported to the 14.04 LTS version.
$ apt-cache policy update-manager update-manager: Installed: 1:0.196.12 Candidate: 1:0.196.12 Version table: *** 1:0.196.12 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:0.196.11 0 500 http://gb.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages It is simple enough to fix, as shown in the diff/patch. ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Patch added: "The fix back-ported from 15.04 version" https://bugs.launchpad.net/bugs/1441595/+attachment/4369342/+files/fix-restart.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1441595 Title: update-manager defaults to "restart" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1441595/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs