I also had that problem, updater closed by clicking ok. No info what was wrong. After reading Alex's posts (#8 and 9), I manually started updater, and it worked for me.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1371942 Title: "this requires installation of untrusted packages": incomplete warning, then "OK" button does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1371942/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
