I also received this error upgrading from 18.10. As with others, install seemed to nearly finish (as judged by the progress bar).
Dell XPS 13 9360 (i7-7500U, Intel HD 620, Kaby Lake GT2) Two anomalies: 1) I had postgresql multicorn libraries installed from a ppa. I used ppa-purge to remove them. 2) I noticed two desktop notifications of network interruptions during the install. I assume that these were related to the installation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823004 Title: Upgrade to 19.04 - cannot install 'install-info' (triggers looping) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1823004/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs