[Bug 1310235] Re: Cannot upgrade from Ubuntu 13.10 Saucy to 14.04 Trusty

[Swâmi Petaramesh]

Okay, I could fix this by uninstalling "flightgear" - after having taken
a look at the logs that ubuntu-bug-report had attached to this bug...

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https://bugs.launchpad.net/bugs/1310235

Title:
  Cannot upgrade from Ubuntu 13.10 Saucy to 14.04 Trusty

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

Bug description:
  Hi,

  Trying to upgrade from Ubuntu 13.10 Saucy to 14.04 Trusty in the GUI,
  I get the attached image.

  Using "do-release upgrade" in a terminal, it ends in :

  <<<
  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  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 

  If none of this applies, then please report this bug using the 
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 
  === Command detached from window (Sun Apr 20 12:27:09 2014) ===
  === Command terminated with exit status 1 (Sun Apr 20 12:27:09 2014) ===
  >>>

  With no explanation or way to fix it whatsoever...

  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
  CheckboxSubmission: 46fb4d85e0c1991660d481d0bb0eb4b1
  CheckboxSystem: edda5d4f616ca792bf437989cb597002
  CrashDB: ubuntu
  Date: Sun Apr 20 12:28:04 2014
  EcryptfsInUse: Yes
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-20 (0 days ago)

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