[Bug 1357566] Re: Could not calculate upgrade from 12.04LTS to 14.04.1LTS

[Paul Marxhausen]

*** This bug is a duplicate of bug 1279762 ***
    https://bugs.launchpad.net/bugs/1279762

and actually, I just now realized that I successfully ran do-release-
upgrade 12.04 to 14.04 on a couple of other machines that also run
openssh-server and have libkrb5-3 , with no problems, so my machine with
this same bug may have a different issue.

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https://bugs.launchpad.net/bugs/1357566

Title:
  Could not calculate upgrade from 12.04LTS to 14.04.1LTS

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  I'm using 12.04 LTS, and the update manager tried to upgrade to
  14.04.1 LTS.

  In the section for new software channels, it was at the part where it
  was calculating changes, but it stopped saying that an unresolvable
  problem occured. Below is the message. After I pressed okay on the
  window, the upgrader restored the original settings before quitting.

  "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.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 1:0.156.14.17
  ProcVersionSignature: Ubuntu 3.13.0-34.60~precise1-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic i686
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: i386
  Date: Fri Aug 15 17:16:26 2014
  EcryptfsInUse: Yes
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1408115250
   com.ubuntu.update-manager window-height 567
   com.ubuntu.update-manager window-width 600
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-08-15 (0 days ago)
  VarLogDistupgradeTermlog:

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