[Bug 1726347] Re: Failed to upgrade from 17.04 to 17.10

[Ubuntu Foundations Team Bug Bot]

** Tags added: zesty2artful

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https://bugs.launchpad.net/bugs/1726347

Title:
  Failed to upgrade from 17.04 to 17.10

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

Bug description:
  Message

  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 17.04
  Package: ubuntu-release-upgrader-core 1:17.04.9
  ProcVersionSignature: Ubuntu 4.10.0-37.41-generic 4.10.17
  Uname: Linux 4.10.0-37-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.4-0ubuntu4.5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity:Unity7
  Date: Mon Oct 23 21:33:07 2017
  InstallationDate: Installed on 2015-09-11 (773 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to zesty on 2017-10-23 (0 days ago)
  VarLogDistupgradeTermlog:

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