as this bug doesn't seem to be attracting too much attention i'll close it. i've worked around the bug (just FYI) by simply changing sources.lst and then in konsole "sudo apt-get update && sudo apt-get dist-ugprade" and well lots of patience thereafter. on all other computers i've seen upgrading to gutsy (without gnupg) i have never encountered this error.
** Changed in: update-manager (Ubuntu) Status: New => Invalid -- update-manager returns error regarding prerequisites https://bugs.launchpad.net/bugs/153970 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