Não consigo instalar pacotes de atualizações [RESOLVIDO]

Bom, sou novato em Linux, estou usando o ubuntu e estou com um problema: não consigo fazer download de pacotes de atualização (sudo apt-get update). Quando eu faço o comando no terminal aparece o erro "404 not found" em alguns dos endereços. E pelo gerenciador de pacotes ele simplesmente aparece que está fazendo os downs e ficam no status "falhou" e tamanho "0 bytes" e ao final mostra um erro mostrando os endereços da web e que não foi possivel a conexão.

*será que poderia ser a minha conexão que é muito baixa?
*preciso resolver isso porque quero instalar plugins e alguns programas.

Desde já, Agradeço!!

poste o resultado dos erros apresentados no " sudo apt-get update "

jonathan@jonathan-desktop:~$ sudo apt-get update
[sudo] password for jonathan:
Ign http://security.ubuntu.com jaunty-security Release.gpg
Ign http://security.ubuntu.com jaunty-security/main Translation-pt_BR
Ign http://security.ubuntu.com jaunty-security/restricted Translation-pt_BR
Atingido http://packages.medibuntu.org jaunty Release.gpg
Atingido http://archive.canonical.com jaunty Release.gpg
Ign http://archive.canonical.com jaunty/partner Translation-pt_BR
Ign http://br.archive.ubuntu.com jaunty Release.gpg
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Ign http://security.ubuntu.com jaunty-security Release
Atingido http://archive.canonical.com jaunty Release
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Ign http://br.archive.ubuntu.com jaunty-updates Release.gpg
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Ign http://br.archive.ubuntu.com jaunty-backports Release.gpg
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Ign http://packages.medibuntu.org jaunty/free Translation-pt_BR
Atingido http://archive.canonical.com jaunty/partner Packages
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Atingido http://archive.canonical.com jaunty/partner Sources
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Ign http://security.ubuntu.com jaunty-security/multiverse Sources
Err http://security.ubuntu.com jaunty-security/main Packages
404 Not Found [IP: 91.189.92.166 80]
Ign http://br.archive.ubuntu.com jaunty-backports/universe Translation-pt_BR
Err http://security.ubuntu.com jaunty-security/restricted Packages
404 Not Found [IP: 91.189.92.166 80]
Err http://security.ubuntu.com jaunty-security/universe Packages
404 Not Found [IP: 91.189.92.166 80]
Err http://security.ubuntu.com jaunty-security/multiverse Packages
404 Not Found [IP: 91.189.92.166 80]
Err http://security.ubuntu.com jaunty-security/main Sources
404 Not Found [IP: 91.189.92.166 80]
Err http://security.ubuntu.com jaunty-security/restricted Sources
404 Not Found [IP: 91.189.92.166 80]
Ign http://br.archive.ubuntu.com jaunty-backports/multiverse Translation-pt_BR
Err http://security.ubuntu.com jaunty-security/universe Sources
404 Not Found [IP: 91.189.92.166 80]
Err http://security.ubuntu.com jaunty-security/multiverse Sources
404 Not Found [IP: 91.189.92.166 80]
Ign http://br.archive.ubuntu.com jaunty-proposed Release.gpg
Ign http://br.archive.ubuntu.com jaunty-proposed/restricted Translation-pt_BR
Atingido http://packages.medibuntu.org jaunty Release
Ign http://br.archive.ubuntu.com jaunty-proposed/main Translation-pt_BR
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Atingido http://packages.medibuntu.org jaunty/free Packages
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Atingido http://packages.medibuntu.org jaunty/non-free Packages
Atingido http://packages.medibuntu.org jaunty/free Sources
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Atingido http://packages.medibuntu.org jaunty/non-free Sources
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Ign http://br.archive.ubuntu.com jaunty-updates/main Packages
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Ign http://br.archive.ubuntu.com jaunty-updates/universe Sources
Ign http://br.archive.ubuntu.com jaunty-updates/multiverse Sources
Ign http://br.archive.ubuntu.com jaunty-backports/main Packages
Ign http://br.archive.ubuntu.com jaunty-backports/restricted Packages
Ign http://br.archive.ubuntu.com jaunty-backports/universe Packages
Ign http://br.archive.ubuntu.com jaunty-backports/multiverse Packages
Ign http://br.archive.ubuntu.com jaunty-backports/main Sources
Ign http://br.archive.ubuntu.com jaunty-backports/restricted Sources
Ign http://br.archive.ubuntu.com jaunty-backports/universe Sources
Ign http://br.archive.ubuntu.com jaunty-backports/multiverse Sources
Ign http://br.archive.ubuntu.com jaunty-proposed/restricted Packages
Ign http://br.archive.ubuntu.com jaunty-proposed/main Packages
Ign http://br.archive.ubuntu.com jaunty-proposed/multiverse Packages
Ign http://br.archive.ubuntu.com jaunty-proposed/universe Packages
Err http://br.archive.ubuntu.com jaunty/main Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty/restricted Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty/universe Packages
404 Not Found
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404 Not Found
Err http://br.archive.ubuntu.com jaunty/main Sources
404 Not Found
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404 Not Found
Err http://br.archive.ubuntu.com jaunty/universe Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty/multiverse Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/main Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/restricted Packages
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Err http://br.archive.ubuntu.com jaunty-updates/universe Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/multiverse Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/main Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/restricted Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/universe Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-updates/multiverse Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/main Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/restricted Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/universe Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/multiverse Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/main Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/restricted Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/universe Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-backports/multiverse Sources
404 Not Found
Err http://br.archive.ubuntu.com jaunty-proposed/restricted Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-proposed/main Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-proposed/multiverse Packages
404 Not Found
Err http://br.archive.ubuntu.com jaunty-proposed/universe Packages
404 Not Found
W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/main/binary-i386/Packages 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/universe/binary-i386/Packages 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/main/source/Sources 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/restricted/source/Sources 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/universe/source/Sources 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://security.ubuntu.com/ubuntu/dists/jaunty-security/multiverse/source/Sources 404 Not Found [IP: 91.189.92.166 80]

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/main/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/restricted/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/universe/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/multiverse/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/main/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/restricted/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/universe/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty/multiverse/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/main/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/restricted/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/universe/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/multiverse/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/main/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/restricted/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/universe/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-updates/multiverse/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/main/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/restricted/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/universe/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/multiverse/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/main/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/restricted/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/universe/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-backports/multiverse/source/Sources 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-proposed/restricted/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-proposed/main/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-proposed/multiverse/binary-i386/Packages 404 Not Found

W: Falhou ao buscar http://br.archive.ubuntu.com/ubuntu/dists/jaunty-proposed/universe/binary-i386/Packages 404 Not Found

E: Alguns arquivos de índice falharam para baixar, eles foram ignorados ou os antigos foram usados no lugar.
jonathan@jonathan-desktop:~$

Em 23 de Abril de 2009, o Ubuntu 9.04 foi lançado.
Seu code name é Jaunty Jackalope e é o sucessor para o Intrepid Ibex (8.10).
Jaunty Jackalope não é um distribuição LTS (Long Term Support). Ele será suportado com atualizações de segurança até Outubro de 2010.
http://ubuntuguide.org/wiki/Ubuntu:Jaunty_pt_BR

como eu poderia migrar para uma versão nova?

-sugiro que vc baixe o live-cd do ubuntu-11.10 e faça uma instalação limpa
-mas antes faça BKP de seus arkivos
-não atualize pq vai corromper seu ubuntu que teve mudança radicais nos ultimos 12 meses

The requested URL /ubuntu/dists/jaunty-updates/restricted/source/Sources was not found on this server.

Apache/2.2.22 Server at br.archive.ubuntu.com Port 80

Qual sua versão do Ubuntu?

$ cat /etc/issue

Como está seu sources.list?

$ cat /etc/apt/sources.list

Já tentou acessar algum dos endereços?

:-(

pois então, meu ubuntu é o 9.04 (jaunty) eu e meus amigos de trabalho usam esse ubuntu para fazer backups de arquivos. E então eu quiz mudar meu SO de windows para linux, mas não sabia que o jaunty não tinha suporte. agora vou baixar uma nova versão e creio eu que não terei mais problemas com atualizações. obrigado!!!

-esse live-cd pode ser usado p/ salvar arkivos num pc ou note
-mas não dá p/ usa-lo mais
-instale o 11.10 ou o 10.04-lts que terá suporte até abril/2013

Os pacotes que já foram disponibilizados para versões consideradas obsoletas não ,podem ser baixados de algum lugar? Ou no término do suporte das demais versões os pacotes que estavam disponíveis até esse término se perdem?

Estou há algum tempo tentando colocar diversas versões do linux mint(ubuntu), porém as mais recentes não consigo colocar a placa de video rodar (placa mãe GIGABITY 8m800vm, a placa de video é VIA PM800) e em versões mais antigas não atualizam os pacotes e encontro dificuldade de compatibilidade com softwares como o libreoffice(apesar do openoffice suprir a necessidade), mas principalmente softwares CAD (librecad, QCad, freecad).

Como estou migrando para Linux agora, não tenho conhecimento profundo sobre seu funcionamento, e acredito que talvez alguém de vocês com mais experiência possa me dar alguma dica.

Obrigado