If that is the expected behaviour, ok. But you can read the instructions to update 18.04LTS to 20.04LTS using Prompt=lts as in
https://wiki.ubuntu.com/FocalFossa/ReleaseNotes : """ To upgrade on a server system: Install update-manager-core if it is not already installed. Make sure the Prompt line in /etc/update-manager/release-upgrades is set to 'normal' if you want non-LTS upgrades, or 'lts' if you only want LTS upgrades. Launch the upgrade tool with the command sudo do-release-upgrade Follow the on-screen instructions. """ It says "sudo do-release-upgrade" not "sudo do-release-upgrade -d" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876420 Title: do-release-upgrade -d does not work to upgrade to 20.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1876420/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
