Mon May 18 07:54:53 UTC 2020

Quantal is not supported anymore. It is a wild guess you tried to upgrade old unsupported release. There is new version http://releases.ubuntu.com/focal/
https://loco.ubuntu.com/ is good place to search for local support.

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https://bugs.launchpad.net/bugs/1879248

Title:
  W:Falhou ao buscar
  http://archive.ubuntu.com/ubuntu/dists/quantal/universe/binary-i386/Packages
  404  Not Found [IP: 91.189.88.152 80] , W:Falhou ao buscar
  http://archive.ubuntu.com/ubuntu/dists/quantal/multiverse/binary-i386/Packages
  404  Not Found [IP: 91.189.88.152 80] , W:Falhou ao buscar
  http://archive.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages
  404  Not Found [IP: 91.189.88.152 80] , E:Alguns arquivos index
  falharam ao ser baixados. Eles foram ignorados, ou cÃ³pias antigas
  sÃ£o

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

Bug description:
  W:Falhou ao buscar http://archive.ubuntu.com/ubuntu/dists/quantal/universe/binary-i386/Packages  404  Not Found [IP: 91.189.88.152 80]
  , W:Falhou ao buscar http://archive.ubuntu.com/ubuntu/dists/quantal/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.88.152 80]
  , W:Falhou ao buscar http://archive.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages  404  Not Found [IP: 91.189.88.152 80]
  , E:Alguns arquivos index falharam ao ser baixados. Eles foram ignorados, ou cÃ³pias antigas sÃ£o

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