Public bug reported: The detailed error message is: E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:16.04.25 ProcVersionSignature: Ubuntu 4.4.0-131.157-generic 4.4.134 Uname: Linux 4.4.0-131-generic i686 NonfreeKernelModules: nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.18 Architecture: i386 CrashDB: ubuntu CurrentDesktop: LXDE Date: Tue Aug 14 11:55:24 2018 InstallationDate: Installed on 2015-08-05 (1104 days ago) InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release i386 (20150422) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to xenial on 2018-08-14 (0 days ago) VarLogDistupgradeTermlog: ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug dist-upgrade i386 third-party-packages xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1786921 Title: Update from 16.04.5 to 18.04.1 failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1786921/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs