[Bug 1737737] Re: try to upgrade from 17.04 to 17.10 from terminal with do-release-upgrade fail

[Ubuntu Foundations Team Bug Bot]

** Tags added: zesty2artful

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https://bugs.launchpad.net/bugs/1737737

Title:
  try to upgrade from 17.04 to 17.10 from terminal with do-release-
  upgrade fail

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

Bug description:
  I tried upgrade from Ubuntu gnome 17.04 to 17.10 in terminal using do-
  release-upgrade script and it fails with this message:

  ...

  Calculando as mudanças

  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
  Lendo listas de pacotes... Feito         
  Construindo árvore de dependências        
  Lendo informação de estado... Feito      

  ...

  It's in my home language portuguese-brazil but it just says that
  cannot calculate the upgrade and what could be the possible causes.

  I would like to know if there's any kind of --force option to upgrade?

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: ubuntu-release-upgrader-core 1:17.04.10
  ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
  Uname: Linux 4.13.0-19-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4.9
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Tue Dec 12 10:15:34 2017
  InstallationDate: Installed on 2017-08-27 (106 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to zesty on 2017-12-12 (0 days ago)

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