Thanks for your bugreport. Please attach your /etc/apt/sources.list to this report.
Did it crash? Or open a dialog box telling you that your sources.list can not be read? Did you manually edit it? Thanks, Michael ** Changed in: update-manager (Ubuntu) Status: Unconfirmed => Needs Info -- update-manager error https://launchpad.net/bugs/96812 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs