You have attached your main.log as "second log" here. Refering to it you have in your quantal installation some maverik repositories enabled.
With this the comment #2 has become obsolet. ** Tags added: dist-upgrade kubuntu quantal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181470 Title: kubuntu 13.2 update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1181470/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs