[Bug 1792911] Re: Upgrade to Ubuntu 18 fails

[Ubuntu Foundations Team Bug Bot]

** Tags added: xenial2bionic

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https://bugs.launchpad.net/bugs/1792911

Title:
  Upgrade to Ubuntu 18 fails

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

Bug description:
  Upgrade tool reports

  'An unresolvable problem occurred while calculating the upgrade.'

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.15.0-34.37~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-34-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Mon Sep 17 11:30:21 2018
  InstallationDate: Installed on 2017-05-03 (501 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-09-17 (0 days ago)
  VarLogDistupgradeTermlog:

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