It is not enough to uncheck the PPAs in your upgrade sources as that leaves the packages installed on your system. The libsane packages from the SANE ppa are causing your failure to upgrade. You'll want to re- enable the sources and then use the package ppa-purge to restore the official Ubuntu package versions and disable the PPAs. After that the upgrade should be calculatable.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897781 Title: System upgrade from Ubuntu 18.04 to 20.04 stops part-way through. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1897781/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
