[Bug 1312015] Re: Upgrading from 12.04 LTS to 14.04 LTS

[Sudheep Muraleedharan]

Not an issue with installer. issue is with one of the packages not
updated correctly.

** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

** Changed in: update-manager (Ubuntu)
     Assignee: (unassigned) => Sudheep Muraleedharan (sudheep-r)

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Title:
  Upgrading from 12.04 LTS to 14.04 LTS

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

Bug description:
  Tried to update from 12.04 to 14.04 using sudo update-manager -d.  On
  the setting new channels software step received the error.

  Could not calculate the upgrade

  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

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.13
  ProcVersionSignature: Ubuntu 3.8.0-38.56~precise1-generic 3.8.13.19
  Uname: Linux 3.8.0-38-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Thu Apr 24 12:23:19 2014
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1398321858
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 500
   com.ubuntu.update-manager window-width 600
  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 2014-04-24 (0 days ago)
  VarLogDistupgradeTermlog:

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