[Bug 1734941] Re: Unable to upgrade from 16.04 to 17.04

[Brian Murray]

It looks like you'd installed some vim packages from a PPA and their
version numbers were likely greater than the version numbers for the
release to which you were upgrading. From Aptclonesystemstate:

2085 vim 2:8.0.1349-0york1~16.04 0
2086 vim-common 2:8.0.1349-0york1~16.04 1
2087 vim-gtk 2:8.0.1349-0york1~16.04 0
2088 vim-gui-common 2:8.0.1349-0york1~16.04 1
2089 vim-runtime 2:8.0.1349-0york1~16.04 1

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https://bugs.launchpad.net/bugs/1734941

Title:
  Unable to upgrade from 16.04 to 17.04

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

Bug description:
  Controllo gestore dei pacchetti
  Lettura elenco dei pacchetti... Fatto     
  Generazione albero delle dipendenze        
  Lettura informazioni sullo stato... Fatto 

  Calcolo delle modifiche

  Calcolo delle modifiche

  Impossibile calcolare l'avanzamento

  Si è verificato un problema irrisolvibile durante il calcolo 
  dell'avanzamento. 

  I motivi possono essere: 
  * L'avanzamento a una versione di pre-rilascio di Ubuntu 
  * L'esecuzione dell'attuale versione di pre-rilascio di Ubuntu 
  * Pacchetti software non ufficiali non forniti da Ubuntu 

  Se non vengono installati, segnalare il problema usando il comando 
  «ubuntu-bug ubuntu-release-upgrader-core» in un terminale.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.23
  ProcVersionSignature: Ubuntu 4.4.0-101.124-generic 4.4.95
  Uname: Linux 4.4.0-101-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.13
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Tue Nov 28 17:49:34 2017
  InstallationDate: Installed on 2016-05-14 (562 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2017-11-28 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2017-11-28T17:04:16.865312

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