Same occurrence here form GUI 'updater'. Not a clean install - I upgraded from 17 first, then 18 LTS -> 20.04. See the same pattern in /var/log/dist-upgrade/main.log as seen by @Lincoln above. Timestamps span ~20mins.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874272 Title: Stage "searching for obsolete software" takes a very long time (30 minutes) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1874272/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs