Looks like it was user error. I didn't have the quantal-updates repo in my /etc/apt/sources.list. For anyone else, I documented it, here:
http://www.prestonlee.com/2013/04/26/ubuntu-12-10-to-13-04-server- upgrade-error/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1076186 Title: not possible to upgrade to raring To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1076186/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
