[Bug 1309695] Re: upgrade to 14.04 crashes

[saadb]

I have installed ubutu 14.04 beta which automatically reverted to 13.10 about two months ago.
My ditribution is 13.10.
Every time I run the upgrade to 14.04 it fails on the second step of the 14.04 upgrade
I tried to upgrade using the upgrade manager and the command do-release-upgrade

The following error shows up:

Could not calculate the upgrade 
An unresolvable problem occurred while calculating the upgrade.

Along withe following message:
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 using the 
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. 


Help, SOS

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https://bugs.launchpad.net/bugs/1309695

Title:
  upgrade to 14.04 crashes

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Confirmed

Bug description:
  Bug crashes system upgrade from 13.10 to 14.04 before step
  "downloading new packages"

  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 x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Apr 18 20:49:43 2014
  InstallationDate: Installed on 2014-03-01 (48 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pl_PL.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-18 (0 days ago)
  VarLogDistupgradeTermlog:

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