see http://www.vdr- portal.de/board60-linux/board14-betriebssystem/board68-debian-und- derivate/122243-do-release-upgrade-funktioniert-nicht/
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1608198 Title: upgrade 14.04 LTS to 16.04.1 LTS impossible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1608198/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs