There is something wrong with your network configuration as us.archive.ubuntu.com was not able to be resolved / connected to. From VarLogDistupgradeMainlog.txt:
2019-09-20 19:58:30,636 DEBUG url_downloadable: http://us.archive.ubuntu.com/ubuntu//dists/disco/Release 2019-09-20 19:58:30,636 DEBUG s='http' n='us.archive.ubuntu.com' p='/ubuntu//dists/disco/Release' q='' f='' 2019-09-20 19:58:55,668 DEBUG error from httplib: '<urlopen error [Errno -3] Temporary failure in name resolution>' ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1844844 Title: upgrade from Cosmic to Disco not calculatable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1844844/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
