[Bug 1607789] Re: Cannot upgrade Kubuntu 14.04.4 LTS to 16.04.1 LTS

[Vincas Dargis]

I've removed lot's of packages, such as Ubuntu sdk from PPA that was
removed, reverted NVIDIA drivers to original version, and more. Upgrade
went successfully.

There could be more information given about packages that actually
produces upgrade problems.

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https://bugs.launchpad.net/bugs/1607789

Title:
  Cannot upgrade Kubuntu 14.04.4 LTS to 16.04.1 LTS

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

Bug description:
  Running "sudo do-release-upgrade" results in:

  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

  There is just too much "Broken" in apt.log... gnote, xchat, even
  openjdk..? Just doesn't seem right.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.16.0-77.99~14.04.1-generic 3.16.7-ckt27
  Uname: Linux 3.16.0-77-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Fri Jul 29 16:14:56 2016
  InstallationDate: Installed on 2015-06-25 (399 days ago)
  InstallationMedia: Kubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150219.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-07-29 (0 days ago)

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