I had the very same problem. I was succesfull to updgrade to 16.10 by setting runlevel 2. So just open terminal and type sudo init 2 Then GDM will close and only text terminal will remain login and type sudo do-release upgrade It outputs some errors about unknown characters, but actually upgrade works.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633545 Title: PermissionError on upgrading from 16.04 to 16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1633545/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
