Hallo, medibuntu was closed.
You must remove all line with medibuntu in /etc/apt/sources.list and in all file from /etc/apt/sources.list.d. Then run sudo apt-get update && sudo apt-get dist-upgrade I close this bug. If your error occurs feel free to reopen this bug. ** Changed in: update-manager (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1267192 Title: Update Manager not working 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1267192/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs