*** This bug is a duplicate of bug 1682909 *** https://bugs.launchpad.net/bugs/1682909
Yup, that was it! I removed rabbitmq-server and then the upgrade worked fine. $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=17.04 DISTRIB_CODENAME=zesty DISTRIB_DESCRIPTION="Ubuntu 17.04" Sorry about that. I guess I was thrown off by the earlier dialogue that asked me about disabling third-party repos. Thanks so much! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1682682 Title: Upgrade from 16.10 to 17.04 failed due to rabbitmq-server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1682682/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs