As a workaround i have done... After the first attempt of "sudo do-release-upgrade -d" restore the original /etc/apt/sources.list
sudo cp /etc/apt/sources.list.distUpgrade /etc/apt/sources.list Then also check the result of "lsb_release -c", if you are upgrading from ubuntu 9.04 to Ubuntu 9.10, it must be: lsb_release -c Codename: jaunty if it return: Codename: karmic You need to restore the old-release name in the /etc/lsb-release file DISTRIB_ID=Ubuntu DISTRIB_RELEASE=9.04 DISTRIB_CODENAME=jaunty DISTRIB_DESCRIPTION="Ubuntu 9.04" Then export the http_proxy environment variable export http_proxy=http://1.2.3.4:8080 and try again if the do-release-upgrade fails during the dl of packages simply redo the previuos step without clean the package cache. I do this 5 times and i get my system updated. Hope this helps -- do-release-upgrade does not work behind proxy https://bugs.launchpad.net/bugs/440229 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
