Same issue here as Helge's. Behind a non-authenticating proxy, I get the Upgrade button but update-manager freezes when clicked. Do-release- upgrade stuck at 'Checking new release'. As always, ftp/http/https proxies properly set in env as well as in Proxies.
-- version upgrade via update-manager or do-release-upgrade does not work with proxy authentication https://bugs.launchpad.net/bugs/479391 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
