There seems to be something wrong with the mirror of the Ubuntu archive which you are using:
2019-03-15 19:33:01,236 DEBUG examining: 'deb http://ftp.energotel.sk/pub/linux/ubuntu/archive/ xenial main restricted' 2019-03-15 19:33:01,238 DEBUG verifySourcesListEntry: deb http://ftp.energotel.sk/pub/linux/ubuntu/archive/ bionic main restricted 2019-03-15 19:33:01,238 DEBUG url_downloadable: http://ftp.energotel.sk/pub/linux/ubuntu/archive//dists/bionic/Release 2019-03-15 19:33:01,238 DEBUG s='http' n='ftp.energotel.sk' p='/pub/linux/ubuntu/archive//dists/bionic/Release' q='' f='' 2019-03-15 19:33:01,707 DEBUG error from httplib: 'HTTP Error 404: Not Found' Please switch to another mirror, update your system, and then try the upgrade again. ** 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/1820332 Title: uproude to 18.04 is examined To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1820332/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
