I was missing the universe repo. I actually just resolved it and came here to say make sure the Universe repo is enabled. It appears to be a known issue with the Ubuntu 18.04.1 installer not enabling this repo by default
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823055 Title: krb5-user fails to install on 18.04 AMD64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1823055/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs