ubuntu 12.10 não atualiza para o 14.04

[carloscosata]

boa tarde, pessoal.

acabei de migrar do windows para o ubuntu 12.10 e não sei praticamente nada a respeito.

o meu problema é o seguinte, quando tento atualizar o ubuntu 12.10 para última versão 14.04 ele da a mensagem de que:

"*falha ao baixar informações do repositório*"

fico muito grato se puderem me ajudar ou indicar o caminho. desde já o meu muito obrigado!

os detalhes do erro é todos esses abaixo:


W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/main/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/restricted/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/universe/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/multiverse/source/Sources  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/main/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/universe/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.92.200 80]
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/main/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/restricted/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/universe/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/restricted/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/universe/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/source/Sources  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/binary-i386/Packages  404  Not Found
, W:Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/binary-i386/Packages  404  Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.

muito obrigado!

[delhmc]

Boa noite, não perca tempo com a versão 12.10. Vá no site oficial do Ubuntu (http://www.ubuntu.com/desktop) baixe o arquivo .ISO e grave num DVD. Em seguida dê boot pelo DVD e faça a instalação seguindo as orientações.

[jkmsjq]

Esta versão já perdeu suporte oficial da Canonical. Por isto, este erro 404, ou seja, endereço não encontrado.

Atualize para a versão 14.04.

[clodoaldops]

-Ubuntu-12.10 já está sem suporte desde abril/2014
-faça instalação limpa do 14.04 a partir do dvd ou pendrive
http://www.vivaolinux.com.br/artigo/InstaleReinstaleRecupere-o-Ubuntu-sem-perder-seus-arquivos

[carloscosata]

muito obrigado a todos pelas dicas e atenção.