me sale este erro al comprobar actualizaciones
W:GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2ED6BB6042C24D89, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/Release.gpg Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/main/binary-i386/P... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/resticted/binary-i... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/universe/binary-i3... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/multiverse/binary-... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/main/i18n/Translat... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/main/i18n/Translat... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/multiverse/i18n/Tr... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/multiverse/i18n/Tr... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/resticted/i18n/Tra... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/resticted/i18n/Tra... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/universe/i18n/Tran... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu-com/ubuntu/dists/dapper-updates/universe/i18n/Tran... Something wicked happened resolving 'archive.ubuntu-com:http' (-5 - No address associated with hostname)
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper/main/binary-i386/Packages 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper/resticted/binary-i386/Pack... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper/universe/binary-i386/Packages 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper/multiverse/binary-i386/Pac... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper-security/main/binary-i386/... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper-security/resticted/binary-... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper-security/universe/binary-i... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/dapper-security/multiverse/binary... 404 Not Found [IP: 91.189.92.177 80]
, W:Failed to fetch http://ppa.launchpad.net/compiz/ubuntu/dists/jaunty/deb-src/binary-i386/... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/compiz/ubuntu/dists/jaunty/http://ppa.launchpad... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/compiz/ubuntu/dists/jaunty/jaunty/binary-i386/P... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/ferramroberto/gsharkdown/ubuntu/dists/quantal/m... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/ferramroberto/gsharkdown/ubuntu/dists/quantal/m... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/myunity/ppa/ubuntu/dists/quantal/main/source/So... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/myunity/ppa/ubuntu/dists/quantal/main/binary-i3... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/screenlets/ppa/ubuntu/dists/quantal/main/source... 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/screenlets/ppa/ubuntu/dists/quantal/main/binary... 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.
que quiere decir?

Cambio de sistema
O una de dos, o has agregado repositorios de versiones anteriores (Dapper y Jaunty), o estás usando una versión antigua de Ubuntu.
Para el primer caso genera un nuevo sources.list desde acá; para el segundo caso... te recomiendo que actualices a una nueva versión, ya que Dapper y Jaunty se han quedado sin soporte.
Agrega al final del título del post (solucionado) si has arreglado tu problema.
ya lo solucione pero hice una
ya lo solucione pero hice una actualizacion parcial gracias como quiera
Problema con sources.list
Hola amigos del Ubuntu
Siempre que inicio el Ubuntu 12.10 me sale el mensaje:
E:Línea 48 mal formada en la lista de fuentes /etc/apt/sources.list (análisis de dist)
Por favor, alguien puede ayudarme?
Sí, claro
Unos consejos:
Agrega al final del título del post (solucionado) si has arreglado tu problema.
Ok! Desculpe por eu ser tão
Ok! Desculpe por eu ser tão ignorante, vou buscar.