[Bug 1393185] Re: Failed to upgrade from 14.04 to 14.10 using the do-release-upgrade tool

[Brian Murray]

*** This bug is a duplicate of bug 996916 ***
    https://bugs.launchpad.net/bugs/996916

** This bug has been marked a duplicate of bug 996916
   postgresql packages in the removal blacklist making it hard to upgrade

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https://bugs.launchpad.net/bugs/1393185

Title:
  Failed to upgrade from 14.04 to 14.10 using the do-release-upgrade
  tool

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

Bug description:
  Switched upgrade mechanics to every version from LTS, and ran the do-
  release-upgrade tool, which terminated with an error:

  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

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.5
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  Uname: Linux 3.13.0-39-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sun Nov 16 14:37:06 2014
  InstallationDate: Installed on 2013-02-08 (646 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2014-11-16 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2014-11-10T22:13:12.655655

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