Erro ao executar sudo apt update no LInux Mint 19.3 [RESOLVIDO]

marcelogabrielcn
(usa Linux Mint)

Enviado em 29/03/2020 - 09:58h

Bom dia, sou usuário iniciante no linux, e ao tentar atualizar recebi a seguinte mensagem:
Uso LInux Mint 19.3

sudo apt-get update
Ign:1 http://mint-packages.c3sl.ufpr.br tricia InRelease
Atingido:2 http://mint-packages.c3sl.ufpr.br tricia Release
Atingido:3 http://archive.canonical.com/ubuntu bionic InRelease
Ign:5 http://mirror.ufam.edu.br/ubuntu bionic InRelease
Atingido:6 http://packages.microsoft.com/repos/vscode stable InRelease
Atingido:7 http://security.ubuntu.com/ubuntu bionic-security InRelease
Ign:8 http://mirror.ufam.edu.br/ubuntu bionic-updates InRelease
Ign:9 http://mirror.ufam.edu.br/ubuntu bionic-backports InRelease
Err:10 http://mirror.ufam.edu.br/ubuntu bionic Release
404 Not Found [IP: 200.129.163.17 80]
Err:11 http://mirror.ufam.edu.br/ubuntu bionic-updates Release
404 Not Found [IP: 200.129.163.17 80]
Err:12 http://mirror.ufam.edu.br/ubuntu bionic-backports Release
404 Not Found [IP: 200.129.163.17 80]
Lendo listas de pacotes... Pronto
E: The repository 'http://mirror.ufam.edu.br/ubuntu bionic Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://mirror.ufam.edu.br/ubuntu bionic-updates Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://mirror.ufam.edu.br/ubuntu bionic-backports Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

removido
(usa Nenhuma)

Enviado em 29/03/2020 - 10:19h

- tentou atualizar pelo gerenciador de atualizações?

removido
(usa Nenhuma)

Enviado em 29/03/2020 - 10:44h

fontes/aplicativos >> repositórios/oficiais >> restaurar/configurações/padrão

-aqui está funcionando sem problemas