Thanks for your report. As you figured out it happened because mythbuntu is no longer supported [1] and it was the only desktop metapackage installed on your system.
I'm moving this bug to the mythbuntu project. [1] http://www.mythbuntu.org/home/news/mythbuntusolongandthanksforallthefish ** Summary changed: - release upgrade failing from zesty to artful + mythbuntu fails to upgrade from 16.04+ and should tell it is not supported anymore. ** Package changed: ubuntu-release-upgrader (Ubuntu) => mythbuntu-meta (Ubuntu) ** Changed in: mythbuntu-meta (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Mythbuntu Bug Team, which is subscribed to mythbuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1739934 Title: mythbuntu fails to upgrade from 16.04+ and should tell it is not supported anymore. Status in mythbuntu-meta package in Ubuntu: Triaged Bug description: system is a brand new mythbuntu install that had just finished the release upgrade to zesty. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: ubuntu-release-upgrader-core 1:17.04.10 ProcVersionSignature: Ubuntu 4.10.0-42.46-generic 4.10.17 Uname: Linux 4.10.0-42-generic x86_64 ApportVersion: 2.20.4-0ubuntu4.9 Architecture: amd64 CrashDB: ubuntu Date: Sat Dec 23 19:48:49 2017 InstallationDate: Installed on 2017-12-24 (0 days ago) InstallationMedia: Mythbuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) PackageArchitecture: all ProcEnviron: TERM=vt100 PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to zesty on 2017-12-24 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mythbuntu-meta/+bug/1739934/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~mythbuntu-bugs Post to : mythbuntu-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~mythbuntu-bugs More help : https://help.launchpad.net/ListHelp
