Public bug reported: An upgrade from Ubuntu Mate 18.04 to 20.04 fails.
/var/log/dist-upgrade/main.log shows : 2020-05-01 14:53:13,658 DEBUG need_server_mode(): run in 'desktop' mode, (because of key deps for 'ubuntu-desktop') 2020-05-01 14:58:12,251 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.' Running apt remove ubuntu-desktop results in Package 'ubuntu-desktop' is not installed, so not removed So ubuntu-desktop is not installed ... ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.37 ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18 Uname: Linux 4.15.0-99-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 CrashDB: ubuntu Date: Fri May 1 15:02:56 2020 InstallationDate: Installed on 2015-06-14 (1782 days ago) InstallationMedia: Ubuntu MATE 14.04.1 "Trusty Tahr" - final amd64 (20141111) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-05-01 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876298 Title: Upgrade from Ubuntu Mate 18.04 to 20.04 fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1876298/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs