The release upgrader disabled all your sources.list entries because it didn't know about trusty. From VarLogDistupgradeMainlog.txt:
2014-07-30 14:50:16,377 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ trusty main restricted' 2014-07-30 14:50:16,377 DEBUG entry '# deb http://de.archive.ubuntu.com/ubuntu/ trusty main restricted' was disabled (unknown dist) 2014-07-30 14:50:16,377 DEBUG examining: 'deb-src http://de.archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse #Added by software-properties' 2014-07-30 14:50:16,377 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ trusty-updates main restricted' 2014-07-30 14:50:16,378 DEBUG entry '# deb http://de.archive.ubuntu.com/ubuntu/ trusty-updates main restricted' was disabled (unknown dist) That's probably incorrect of it but you also should be using trusty in your sources.list file if you aren't running it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1350336 Title: cannot upgrade my ubuntu 13.04 to 14.04 (I am using 14.04 sources.list) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1350336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
