Disco Dingo 19.04 is not supported anymore. It is still possible to upgrade but fresh install is recommended
https://help.ubuntu.com/community/UpgradeNotes#Unsupported_and_Obsolete_Versions ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880321 Title: Ubuntu version upgrade failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1880321/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
