[Bug 1396776] [NEW] do-release-upgrade fails upgrading 12.04 to 14.04

[Simon Bazley]

Public bug reported:

not sure what I can add to be helpful, I ran do-release-upgrade to
upgrade an old machine from 12.04 to 14.04 and it first told me it would
disable all 3rd party add-ons (and prompts to recover or close the
window)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.17
ProcVersionSignature: Ubuntu 3.2.0-72.107-generic 3.2.64
Uname: Linux 3.2.0-72-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.8
Architecture: amd64
Date: Wed Nov 26 20:45:43 2014
GsettingsChanges:
 
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
Symptom: ubuntu-release-upgrader-core
UpgradeStatus: Upgraded to precise on 2014-11-26 (0 days ago)

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


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

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https://bugs.launchpad.net/bugs/1396776

Title:
  do-release-upgrade fails upgrading 12.04 to 14.04

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

Bug description:
  not sure what I can add to be helpful, I ran do-release-upgrade to
  upgrade an old machine from 12.04 to 14.04 and it first told me it
  would disable all 3rd party add-ons (and prompts to recover or close
  the window)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.17
  ProcVersionSignature: Ubuntu 3.2.0-72.107-generic 3.2.64
  Uname: Linux 3.2.0-72-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu17.8
  Architecture: amd64
  Date: Wed Nov 26 20:45:43 2014
  GsettingsChanges:
   
  InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-11-26 (0 days ago)

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