I was able to solve this by finding all packages installed via PPA and removing them. This command helped tremendously: https://askubuntu.com/questions/447129/how-to-list-all-the-packages-which-are-installed-from-ppas
After removing those, the upgrade went through -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2078588 Title: Could not calculate the upgrade 22.04 to 24 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2078588/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs