Public bug reported: Using GUI to upgrade to 12.11, the error appears. There's few I can say, sorry.
ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: ubuntu-release-upgrader-core (not installed) ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30 Uname: Linux 3.2.0-32-generic i686 NonfreeKernelModules: wl ApportVersion: 2.0.1-0ubuntu13 Architecture: i386 Date: Sat Oct 20 09:08:03 2012 InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1) ProcEnviron: LANGUAGE=es_ES:en TERM=xterm PATH=(custom, user) LANG=es_ES.UTF-8 SHELL=/bin/bash SourcePackage: ubuntu-release-upgrader UpgradeStatus: Upgraded to precise on 2012-10-20 (0 days ago) ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068972 Title: Upgrade fails when configuring new software channels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1068972/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs