After applying this patch (derived from a comment by Bogdan), it seems to work, and I successfully upgraded.
Unixnewbie, please be patient. The developers in charge have been subscribed to this bug automatically. And as you can see, this bug is being worked on by the community. https://wiki.ubuntu.com/BugSquad has more on the bug process, and if more of us followed that, this would probably get more Core developer attention. ** Attachment added: "import os in dist-upgrade fetcher" http://launchpadlibrarian.net/8067572/DistUpgradeFetcher.py.patch -- update-manager -c -d DOESN'T work for going to Gutsy https://bugs.launchpad.net/bugs/118862 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs