[Bug 1783948] Re: upgrade from 16.04 LTS to 18.04 LTS fails

[Ubuntu Foundations Team Bug Bot]

** Tags added: xenial2bionic

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https://bugs.launchpad.net/bugs/1783948

Title:
  upgrade from 16.04 LTS to 18.04 LTS fails

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

Bug description:
  Description:	Ubuntu 16.04.5 LTS
  Release:	16.04

  Обнаружена неразрешимая проблема при расчёте обновления.

   Это может быть вызвано тем, что:
   * Обновление до пре-релиза Ubuntu
   * Использование текущей пре-релиз версии Ubuntu
   * Неофициальное ПО, не предоставляемое Ubuntu

  Если ничего из перечисленного не подходит, сообщите об этой ошибке,
  выполнив команду «ubuntu-bug ubuntu-release-upgrader-core» в
  терминале.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-131.157-generic 4.4.134
  Uname: Linux 4.4.0-131-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Fri Jul 27 09:44:09 2018
  InstallationDate: Installed on 2016-12-02 (601 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-07-27 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2018-07-11T09:27:29.299239

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