I'm seeing this behavior too. I was trying to update an Ubuntu Server to test Karmic and spotted this. It was very weird because "sudo do- release-upgrade" apparently works and "sudo do-release-upgrade -d" doesn't.
I checked the process environment and the $http_proxy variable is correctly defined. Then I started fiddling with the python script and found this bug. -- url_downloadable does not respect proxy https://bugs.launchpad.net/bugs/396187 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