Public bug reported: Received this error when trying to upgrade from Natty 11.04 to Oneiric.
An unresolvable problem occurred while calculating the upgrade: E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu This is from an Xubuntu desktop. I also have gnome and unity installed, but don't use them. I expected a smooth upgrade. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: update-manager 1:0.150.5.2 ProcVersionSignature: Ubuntu 2.6.38-13.56-generic 2.6.38.8 Uname: Linux 2.6.38-13-generic i686 Architecture: i386 CheckboxSubmission: fd057b0bdea60eb17cdbf0a26f3fba5f CheckboxSystem: 0531969bcfd4f03af7405c98dc94a948 Date: Sun Mar 18 20:25:52 2012 GConfNonDefault: /apps/update-manager/check_new_release_ignore=oneiric /apps/update-manager/first_run=false /apps/update-manager/show_details=true /apps/update-manager/window_size=(668,634) PackageArchitecture: all ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: update-manager UpgradeStatus: Upgraded to natty on 2012-03-19 (0 days ago) VarLogDistupgradeApttermlog: VarLogDistupgradeHistorylog: VarLogDistupgradeTermlog: ** Affects: update-manager (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/958964 Title: distribution upgrade failure 11.04 to 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/958964/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs