[Bug 1534891] Re: unable to update ubuntu 14.04 to 15.04

[Brian Murray]

*** This bug is a duplicate of bug 1534374 ***
    https://bugs.launchpad.net/bugs/1534374

** This bug has been marked a duplicate of bug 1534374
   unable to upgrade to 15.04 due to libstdc++6 SRU

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https://bugs.launchpad.net/bugs/1534891

Title:
  unable to update ubuntu 14.04 to 15.04

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

Bug description:
  unable to update ubuntu 14.04 to 15.04

  getting following error message

  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

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-75.119-generic 3.13.11-ckt32
  Uname: Linux 3.13.0-75-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: i386
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sat Jan 16 12:12:43 2016
  InstallationDate: Installed on 2015-01-04 (376 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-16 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2015-09-08T16:24:32.521385

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