The timestamp on /etc/apt/sources.list.distUpgrade wouldn't tell us anything useful since it will have been modified as part of the cosmic->disco upgrade; but the fact that it shows universe commented out with bionic in the series, not cosmic, confirms that this was already disabled by the time the bionic->cosmic dist-upgrade finished, otherwise u-r-u would've rewritten the lines as part of that upgrade to show cosmic rather than bionic.
** Changed in: ubuntu-release-upgrader (Ubuntu) Importance: Undecided => Critical ** Summary changed: - universe missing after do-release-upgrade + universe missing after bionic->cosmic do-release-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1822886 Title: universe missing after bionic->cosmic do-release-upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1822886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs