What I find odd it that your getting a duplicate error in the sources file. That should definitely not be the case with a fresh install. Had you release upgraded that machine in the past?
Also attach the most recent logs. (/var/log/dist-upgrade) Looking at your older ones, I didnt see an error in regards to upgrading. I understand you were getting that candidate message but it was not throwing up any error messages in the logs. --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/943638 Title: upgrade lucid to precise has missing candidates To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/943638/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs