Pessoal,
Não sei se é permito a reabertura de um tópico já solucionado, então postarei mais uma dúvida aqui.
Depois que estou dando apt-get update acontece o seguinte erro:
Lendo listas de pacotes... Pronto
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty_restricted_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-updates/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-updates_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-updates/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-updates_restricted_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-backports/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-backports_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-backports/multiverse amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-backports_multiverse_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-backports/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-backports_restricted_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-backports/multiverse i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-backports_multiverse_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-security/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.ubuntu.com/ubuntu/ trusty-security/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.canonical.com/ubuntu/ trusty/partner amd64 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_trusty_partner_binary-amd64_Packages)
W: Duplicate sources.list entry
http://archive.canonical.com/ubuntu/ trusty/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_trusty_partner_binary-i386_Packages)
W: Você terá que executar apt-get update para corrigir estes problemas
Note que pede para executar o update novamente, mas sempre faço isso e ainda continua essas mensagens, o que é e como resolver?