I had a similar error. update-manager -d failed with a KeyError. Now update manager only offers a partial upgrade and says "An upgrade from 'quantal' to 'precise' is not supported with this tool."
Running apt-get dist-upgrade -f now fails with: dpkg-query: error: parsing file '/var/lib/dpkg/status' near line 15619 package 'libssl0.9.8:i386': mixed non-coinstallable and coinstallable package instances present exim4-config.postinst: [WARN] Installed debconf version is broken. Aborting preconfigure. dpkg: error: parsing file '/var/lib/dpkg/status' near line 15619 package 'libssl0.9.8:i386': mixed non-coinstallable and coinstallable package instances present E: Sub-process /usr/bin/dpkg returned an error code (2) Given that I wanted to upgrade to fix the buggy xserver-xorg version in precise, I'm now downloading Debian testing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1044144 Title: Upgrade from kubuntu 12.04 to 12.10 failed using "sudo do-release- upgrade -d " To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1044144/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
