[Bug 1324196] [NEW] upgrade from 12.04 to 14.04 not possible

[Michael]

Public bug reported:

when upgrading to the 14.04 the dependencies cant be calculated

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.13
Uname: Linux 3.13.3 x86_64
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Wed May 28 19:20:26 2014
EcryptfsInUse: Yes
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1401296683
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 522
 com.ubuntu.update-manager window-width 653
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2014-05-28 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade precise

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https://bugs.launchpad.net/bugs/1324196

Title:
  upgrade from 12.04 to 14.04 not possible

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  when upgrading to the 14.04 the dependencies cant be calculated

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.13
  Uname: Linux 3.13.3 x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Wed May 28 19:20:26 2014
  EcryptfsInUse: Yes
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1401296683
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 522
   com.ubuntu.update-manager window-width 653
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-05-28 (0 days ago)
  VarLogDistupgradeTermlog:

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