Public bug reported: I'm currently using Ubuntu 18.04.5 LTS and I'm trying to upgrade to 20.04. I keep getting the 'could not calculate upgrade' error. I have searched through bug reports exhaustively and cannot find the solution. I have no broken packages according to apt and aptitude. I don't know what to do. I've removed everything that shows up in previous bug reports as causing problems.
ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-release-upgrader-core 1:18.04.42 ProcVersionSignature: Ubuntu 5.4.0-65.73~18.04.1-generic 5.4.78 Uname: Linux 5.4.0-65-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.9-0ubuntu7.23 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: ubuntu:GNOME Date: Sun Feb 7 15:20:03 2021 InstallationDate: Installed on 2019-03-12 (698 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/usr/bin/zsh SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to bionic on 2021-02-07 (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/1914963 Title: Unable to upgrade to 20.04, could not calculate upgrade. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1914963/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs