Public bug reported: Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade. If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want to investigate this yourself the log files in '/var/log/dist-upgrade' will contain details about the upgrade. Specifically, look at 'main.log' and 'apt.log'. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.37 ProcVersionSignature: Ubuntu 4.15.0-112.113-generic 4.15.18 Uname: Linux 4.15.0-112-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Fri Jul 24 17:09:29 2020 InstallationDate: Installed on 2020-07-09 (14 days ago) InstallationMedia: Ubuntu 16.04.6 LTS "Xenial Xerus" - Release amd64 (20190227) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2020-07-24 (0 days ago) VarLogDistupgradeTermlog: mtime.conffile..etc.update-manager.release-upgrades: 2020-07-24T15:50:47.394303 ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic dist-upgrade third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888881 Title: calculating fails when upgrading from 28.04 to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1888881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs