Upgrading from Lucid Lynx to Maverick Meerkat fails with error in "calculating upgrade"

[Boris Terzic]

Binary package hint: update-manager

I'm on Ubuntu 10.04, running "update-manager -d" , selecting "Upgrade" to upgrade to 10.10. update-manager runs, in the step "Setting new software channels" it comes up with an error dialog with the title "Could not calculate the upgrade". These are the contents of said dialog:

"Could not calculate the upgrade

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

If none of this applies, then please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report."

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: update-manager 1:0.134.10
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Oct 3 13:32:21 2010
PackageArchitecture: all
ProcEnviron:
 LC_TIME=en_GB.UTF-8
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: update-manager

[Jean-Baptiste Lallement (jibel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 645064, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.