[Bug 1637781] Re: Upgrade from 14.04 LTS to 16.04 LTS fails

[Brian Murray]

*** This bug is a duplicate of bug 1611737 ***
    https://bugs.launchpad.net/bugs/1611737

** This bug has been marked a duplicate of bug 1611737
   Can't upgrade from 14.04 to 16.04 if ros-indigo-desktop-full or ros-indigo-perception installed from ROS servers

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https://bugs.launchpad.net/bugs/1637781

Title:
  Upgrade from 14.04 LTS to 16.04 LTS fails

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Straightforward upgrade. 14.04LTS desktop system (x86-64) was in a
  valid state, with updating working and all updates applied.  Answered
  "Yes" to the prompt to upgrade to 16.04 LTS.  Let that run. Failed
  with dialog box "Could not calculate the upgrade", with no additional
  useful information.

  Looking at the logs shows a huge number of "Broken" packages, many of
  which are internal to Ubuntu, so that's not helpful.

  Did the "ubuntu-bug ubuntu-release-upgrader-core" thing to create this
  bug report, so the detailed logs should be attached.

  (There's a vast amount of contradictory advice on line at "askubuntu"
  about this, with no good, non-drastic answers. This should Just Work.)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-100.147-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-100-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sat Oct 29 16:13:04 2016
  InstallationDate: Installed on 2013-07-03 (1214 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-10-29 (0 days ago)
  VarLogDistupgradeTermlog:

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