[Bug 1796021] Re: Do-release-upgrade VM Server Failed

[Launchpad Bug Tracker]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1796021

Title:
  Do-release-upgrade VM Server Failed

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

Bug description:
  The server is running on a virtual machine without any Desktop Environment on Ubuntu 16.04.5 LTS.
  While trying to do-release-upgrade I get this message in Brazilian Portuguese and says:
  __________________________________________________________________
  Não foi possível calcular a atualização
  Um problema não solucionável ocorreu ao calcular a atualização.

  As possíveis causas são:
  *Uma atualização para uma versão de pré-lançamento do Ubuntu;
  * Executar a partir de uma versão de pré-lançamento do Ubuntu;
  * Uso de pacotes não-oficiais e não fornecidos pelo Ubuntu;

  Se nada disso se aplicar, relate esse erro usando o comando
  'ubuntu-bug ubuntu-release-upgrader-core' no terminal.

  Restaurando o estado original do sistema
  Abortando
  __________________________________________________________________

  That message in short words would be that there is an unknown problem
  during update.

  There are no third-party PPA's installed on this system.

  Is there any other information that I need to provide to debug this
  issue?

  Thankful,
  Gustavo

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.4.0-137.163-generic 4.4.144
  Uname: Linux 4.4.0-137-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu Oct  4 01:57:03 2018
  InstallationDate: Installed on 2018-01-26 (250 days ago)
  InstallationMedia: Ubuntu-Server 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=pt_BR:pt:en
   TERM=linux
   PATH=(custom, no user)
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-10-04 (0 days ago)

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