[Bug 1535555] [NEW] I can not Upgrade to Ubuntu 15.04

[Nicola]

Public bug reported:

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

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Tue Jan 19 08:36:51 2016
InstallationDate: Installed on 2014-04-19 (639 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-01-19 (0 days ago)
VarLogDistupgradeTermlog:
 
mtime.conffile..etc.update.manager.release.upgrades: 2016-01-11T10:06:13.684461

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade third-party-packages trusty

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https://bugs.launchpad.net/bugs/1535555

Title:
  I can not Upgrade to Ubuntu 15.04

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

Bug description:
  Si è verificato un problema irrisolvibile durante il calcolo 
  dell'avanzamento

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Tue Jan 19 08:36:51 2016
  InstallationDate: Installed on 2014-04-19 (639 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-19 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update.manager.release.upgrades: 2016-01-11T10:06:13.684461

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