Então eu estava me preparando para atualizar para o Ubuntu 15.04 e eu estava passando e limpando as coisas e esta é uma das coisas que se destacou para mim.
W: Duplicate sources.list entry http://download.opensuse.org/repositories/home:/p_conrad:/coins/xUbuntu_14.10/ Packages (/var/lib/apt/lists/download.opensuse.org_repositories_home:_p%5fconrad:_coins_xUbuntu%5f14.10_Packages)
W: You may want to run apt-get update to correct these problems
Agora, atualizar com sudo apt-get update não fez nada, então fui até o Vim tentar ver se conseguia remover as referências. Eu não vi nada, mas aqui está o conteúdo do diretório.
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Agora, isso é o que eu acho que deveria estar procurando, mas isso não parece ter as duplicatas.
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Agora, instalei isto: sudo apt-get install nfs-kernel-server
daqui: link
As entradas source.list duplicadas não são um grande problema, apenas um pequeno impacto no desempenho.
A mensagem é enganosa: apt-get update sozinho não elimina entradas duplicadas. Você precisa editar os arquivos source.list : /etc/apt/sources.list e os arquivos em /etc/apt/sources.list.d . Procure entradas para o repositório mencionado na mensagem de erro e remova uma das duplicatas. Então execute apt-get update .
Eu começaria tentando manualmente as instruções aqui: Como eu adiciono uma linha ao meu /etc/apt/sources.list?
Veja como eu editei o meu:
$ ls /etc/apt
apt.conf.d preferences preferences.d sources.list sources.list.d sources.list.save trustdb.gpg trusted.gpg trusted.gpg~ trusted.gpg.d
$ vi /etc/apt/sources.list
Há mais informações aqui: link
Assim que você perceber como isso funciona, tentarei usar o software aqui para gerar um arquivo sources.list de substituição: link .