i have the same problem, i opened a duplicate bug, by issuing sudo update-manager in a bash i get a notice that dbus is not working correctly. i dunno how to apply a .diff so i am locked in the problem.
-- "Install updates"-button only refreshes update list in it_IT environement https://launchpad.net/bugs/51419 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs