Não consigo atualizar de 12.04 beta2 para 12.04 final, nem instale qualquer lente

Question

Em ambos os casos, depois de adicionar os repositórios (para lente) e atualizar, quando tento instalá-los ou para atualizar o Ubuntu, recebo uma mensagem semelhante:

W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: You may want to run apt-get update to correct these problems

por exemplo. Do terminal:

sudo apt-get dist-upgrade

Reading package lists... Done Building dependency tree
Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_main_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_main_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_main_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_main_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/main i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_main_binary-i386_Packages) W: Duplicate sources.list entry cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/ precise/restricted i386 Packages (/var/lib/apt/lists/Ubuntu%2012.04%20LTS%20%5fPrecise%20Pangolin%5f%20-%20Release%20i386%20(20120423)_dists_precise_restricted_binary-i386_Packages) W: You may want to run apt-get update to correct these problems

É como se não fosse nada para atualizar, mas quando tento atualizar do gerenciador de atualização recebo a mensagem: Falha ao baixar as informações do repositório. E nos detalhes eu recebo:

W:GPG error: h ttp://packages.medibuntu.org precise InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2EBC26B60C5A2783, W:Failed to fetch h ttp://ppa.launchpad.net/jfi/pidgin/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch h ttp://ppa.launchpad.net/jfi/pidgin/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , W:Failed to fetch h ttp://ppa.launchpad.net/remi.rerolle/unity-lens-tomboy/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch h ttp://ppa.launchpad.net/remi.rerolle/unity-lens-tomboy/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , W:Failed to fetch h ttp://ppa.launchpad.net/unity-team/hud/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch h ttp://ppa.launchpad.net/unity-team/hud/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , E:Some index files failed to download. They have been ignored, or old ones used instead.

Gostaria de receber ajuda. Obrigado!

    

Answer 1

Faça o seguinte e veja se isso ajuda:

1. sudo apt-get update

2. sudo apt-get upgrade

Se o comando apt não funcionar tente o aptitude apenas no caso.

1. sudo aptitude update

2. sudo aptitude upgrade

Eu também recomendo comentar / remover o medibuntu ppa, ou para esse assunto comentar / remover todos os PPA e apenas deixar os repositórios padrão do Ubuntu que são oficialmente suportados pelo Ubuntu. Dessa forma, você minimiza os problemas que podem ocorrer ao tentar ler alguns PPAs (especialmente o tempo necessário para concluir a atualização dos repositórios).