Thanks for your bugreport. Could you please run (on a terminal): $ sudo apt-get update and see if that fixes the issue? If not, please attach your /etc/apt/sources.list to this report.
Thanks, Michael ** Changed in: update-manager (Ubuntu) Status: Unconfirmed => Needs Info -- [apport] update-manager crashed with SystemError in open() https://launchpad.net/bugs/84727 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs