[Bug 1583597] Re: Trying to update an Ubuntu Server 14.04 to 15.10

[Brian Murray]

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

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 996916, 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.

** 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/1583597

Title:
  Trying to update an Ubuntu Server 14.04 to 15.10

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

Bug description:
  When I try to update Ubuntu Server 14.04 to 15.10 these are the error
  messages:

  Descargados 1.244 kB en 6s (15,8 MB/s)

  Comprobando el gestor de paquetes
  Leyendo lista de paquetes... Done       
  Creando árbol de dependencias            
  Leyendo la información de estado... Done
  Building data structures... Done        

  Calculando los cambios

  Calculando los cambios

  No se ha podido calcular la actualización

  Ha ocurrido un problema mientras se calculaba la actualización.

  Eso se ha podido causar por: 
  * Actualizar a una versión de Ubuntu aún no publicada 
  * Estar ejecutando la versión actual, aún no publicada, de Ubuntu 
  * Paquetes no oficiales de software no proporcionados por Ubuntu 

  Si nada de esto aplica, informe de este error usando la orden 
  «ubuntu-bug ubuntu-release-upgrader-core» en una terminal. 

  
  Restaurando el estado original del sistema

  Cancelando
  Leyendo lista de paquetes... Done       
  Creando árbol de dependencias            
  Leyendo la información de estado... Done
  Building data structures... Done        
  === Command terminated with exit status 1 (Thu May 19 10:01:53 2016) ===

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: ubuntu-release-upgrader-core 1:15.04.14.3
  ProcVersionSignature: Ubuntu 3.19.0-31.36-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-31-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.8
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu May 19 09:27:34 2016
  InstallationDate: Installed on 2013-05-02 (1113 days ago)
  InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to vivid on 2016-05-19 (0 days ago)

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