With ubuntu-release-upgrader version 21.04.2 which will be used by users upgrading to Ubuntu 21.04 the option to use cdromupgrade has been removed as it broken (as this bug indicates) and was no longer accessible by running any upgrade options.
** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Won't Fix ** Also affects: ubuntu-release-notes Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1793754 Title: cdromupgrade fails in lubuntu-18.04-alternative To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/1793754/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs