I also can confirm the bug to be present in update-manager 1:0.126.9 of karmic. Neither the proxy setting in synaptic nor the environment variable http_proxy are consulted when trying to the update.
The patch in use-urllib2-in-url_downloadable-3.diff fixed the problem for me. Quite a long-standing bug, I had to apply the same patch when updating from jaunty to karmic :-( -- url_downloadable ignores proxy settings https://bugs.launchpad.net/bugs/446552 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs