Thank you for taking the time to report this issue and helping to make Ubuntu better.
I didn't look at why your upgrade failed, but please note that Lubuntu 18.04 LTS was the last Lubuntu that used LXDE. Upgrades of Lubuntu 18.04 LTS systems should be via re-installs due to the desktop change. If you refer to the release notes (https://lubuntu.me/focal-1-released/) you'll find the following "Note, due to the extensive changes required for the shift in desktop environments, the Lubuntu team does not support upgrading from 18.04 or below to any greater release. Doing so will result in a broken system. If you are on 18.04 or below and would like to upgrade, please do a fresh install." This is a informational comment only. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890944 Title: try upgrade lubuntu 18.04LTS to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1890944/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
