[Bug 1400707] Re: Trying to upgrade 12.04 to 14.04

[Christopher M. Penalver]

Chris Lewis, thank you for reporting this and helping make Ubuntu
better. A number of issues were noticed:

1) It would appear you grabbed a deb of flightgear and installed it into
Precise? If so, this and any other manually installed debs would need to
be removed, and if available natively in the Precise Ubuntu repository
(not manually installed if available in a later version of Ubuntu)
replaced with the ones from the Precise Ubuntu repository.

2) You have a slew of PPA entries in your sources file. Please remove
these entries entirely (not rely on Ubuntu to disable them) remove all
PPA software installed from these archives.

3) You have an unsupported kernel as outlined in
https://wiki.ubuntu.com/Kernel/LTSEnablementStack . You would want to
upgrade to a supported kernel.

4) Once these are resolved, please execute the following in a terminal, and then re-attempt the upgrade to 14.04:
sudo apt-get update && sudo apt-get -y upgrade

If after doing all these steps you are unable to upgrade, please file a
new report (not re-open this one).

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: update-manager (Ubuntu)
   Importance: Undecided => Low

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

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https://bugs.launchpad.net/bugs/1400707

Title:
  Trying to upgrade 12.04 to 14.04

Status in update-manager package in Ubuntu:
  Invalid

Bug description:
  Tried to run do-release-upgrade from up-to-date Precise to go from
  12.04 to 14.04.1, and get:

  ...
  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 

  Calculating the changes

  Calculating the changes

  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. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 
  # 
  ---------------------

  I don't think there's anything whatsoever unusual with this install.
  It's fairly basic with mythtv .027, and ntopng.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.17
  ProcVersionSignature: Ubuntu 3.11.0-26.45~precise1-generic 3.11.10.12
  Uname: Linux 3.11.0-26-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu17.8
  Architecture: amd64
  Date: Tue Dec  9 08:32:33 2014
  GsettingsChanges:
   
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-12-09 (0 days ago)

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