Third party packet (like cuda-drivers) also blocks a release upgrade process if they are not up-to-date.
They may not show in an 'apt update' command result but should be seen with 'apt list --upgradable' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797209 Title: do-release-upgrade should block release upgrades in some circumstances To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1797209/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs