upgrade fail 13.10 - 14.04

[Springnuts]

I updated 13.10 fully and then rebooted.

I then launched the software updater.

On launching updater I am offered upgrade from 13.10 to 14.04.

The release tool starts successfully.

I receive a warning message: "Third party sources disabled. Some third party entries in your sources.list were disabled. You can re-enable them after the upgrade with the 'software-properties' tool or your package manager." I clicked the Close button.

The release tool then began fetching files.

Before this is complete the upgrader stops with the following failure message: An unresolvable problem occurred while calculating the upgrade. 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.

I am running the released version of 13.10.
I am not upgrading to a pre-release version of 14.04 - at least not knowingly.
I don't think I have any unofficial software packages (but how would I find out?).

I consider this a bug as the upgrader does not provide any way forward (such as identifying how to tell what the problem is; or even offering to solve it).

Regards

Springnuts.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.5
ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
Uname: Linux 3.11.0-19-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: i386
CrashDB: ubuntu
Date: Fri Apr 18 07:31:23 2014
InstallationDate: Installed on 2014-02-15 (61 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2014-04-18 (0 days ago)
VarLogDistupgradeTermlog:

[Springnuts (simon-springnuts-orangehome)]

Thanks - perfect. I have removed cinnamon and the update worked perfectly.

Many thanks again.

Simon.

On 18/04/14 08:29, Jean-Baptiste Lallement wrote:
> *** This bug is a duplicate of bug 1279762 ***
> https://bugs.launchpad.net/bugs/1279762
>
> ** This bug has been marked a duplicate of bug 1279762
> upgrade to 14.04 from 13.10 failed - cinnamon fails to upgrade
>