I just ran into the same issue testing the release upgrade from 15.10 to 16.04 in a Docker container.
I started the container with docker run -ti ubuntu:15.10 /bin/bash and then installed ubuntu-release-upgrader-core and tried the upgrade, and hit exactly the same problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1570947 Title: Trusty to Xenial upgrade KeyError: 'SUDO_UID' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1570947/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
