Ubuntu no permite actualizar ni instalar paquetes (solucionado)

Imagen de camilow
0 puntos

Estimados:

ayer me he comprado un notebook al que le he instalado ubuntu en una partición. La primera versión que le instalé fue 12.04. Una vez instalado intento actualizarlo o instalarle software y no me lo permite. Intenté reinstalando el 11.10 con el mismo resultado. Ahora he instalado el 12.10 y lo mismo. Al intentar ejecutar 'apt-get update' me arroja el siguiente mensaje:

camilo@camilo-notebook:~$ sudo apt-get update
[sudo] password for camilo:
Ign http://security.ubuntu.com quantal-security InRelease
Ign http://ppa.launchpad.net quantal InRelease
Obj http://security.ubuntu.com quantal-security Release.gpg
Obj http://ppa.launchpad.net quantal Release.gpg
Obj http://ppa.launchpad.net quantal Release
Obj http://security.ubuntu.com quantal-security Release
Obj http://security.ubuntu.com quantal-security/main Sources
Obj http://ppa.launchpad.net quantal/main Sources
Obj http://security.ubuntu.com quantal-security/restricted Sources
Obj http://ppa.launchpad.net quantal/main i386 Packages
Obj http://security.ubuntu.com quantal-security/universe Sources
Obj http://security.ubuntu.com quantal-security/multiverse Sources
Obj http://security.ubuntu.com quantal-security/main i386 Packages
Obj http://security.ubuntu.com quantal-security/restricted i386 Packages
Obj http://security.ubuntu.com quantal-security/universe i386 Packages
Obj http://security.ubuntu.com quantal-security/multiverse i386 Packages
Obj http://security.ubuntu.com quantal-security/main Translation-en
Obj http://security.ubuntu.com quantal-security/multiverse Translation-en
Ign http://ppa.launchpad.net quantal/main Translation-es_ES
Obj http://security.ubuntu.com quantal-security/restricted Translation-en
Ign http://ppa.launchpad.net quantal/main Translation-es
Ign http://ppa.launchpad.net quantal/main Translation-en_GB
Ign http://ppa.launchpad.net quantal/main Translation-en
Obj http://security.ubuntu.com quantal-security/universe Translation-en
Ign http://security.ubuntu.com quantal-security/main Translation-es_ES
Ign http://security.ubuntu.com quantal-security/main Translation-es
Ign http://security.ubuntu.com quantal-security/main Translation-en_GB
Ign http://security.ubuntu.com quantal-security/multiverse Translation-es_ES
Ign http://security.ubuntu.com quantal-security/multiverse Translation-es
Ign http://security.ubuntu.com quantal-security/multiverse Translation-en_GB
Ign http://security.ubuntu.com quantal-security/restricted Translation-es_ES
Ign http://security.ubuntu.com quantal-security/restricted Translation-es
Ign http://security.ubuntu.com quantal-security/restricted Translation-en_GB
Ign http://security.ubuntu.com quantal-security/universe Translation-es_ES
Ign http://security.ubuntu.com quantal-security/universe Translation-es
Ign http://security.ubuntu.com quantal-security/universe Translation-en_GB
Ign http://cl.archive.ubuntu.com quantal InRelease
Ign http://cl.archive.ubuntu.com quantal-updates InRelease
Ign http://cl.archive.ubuntu.com quantal-backports InRelease
Err http://cl.archive.ubuntu.com quantal Release.gpg
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates Release.gpg
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports Release.gpg
No se pudo conectar a cl.archive.ubuntu.com:http:
Ign http://cl.archive.ubuntu.com quantal Release
Ign http://cl.archive.ubuntu.com quantal-updates Release
Ign http://cl.archive.ubuntu.com quantal-backports Release
Err http://cl.archive.ubuntu.com quantal/main Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/main i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/main Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/main Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/main Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/main Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/multiverse Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/restricted Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal/universe Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/main Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/multiverse Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/restricted Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-updates/universe Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse Sources
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse i386 Packages
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/main Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/multiverse Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/restricted Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe Translation-es_ES
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe Translation-es
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe Translation-en_GB
No se pudo conectar a cl.archive.ubuntu.com:http:
Err http://cl.archive.ubuntu.com quantal-backports/universe Translation-en
No se pudo conectar a cl.archive.ubuntu.com:http:
W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/Release.gpg No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/Release.gpg No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/Release.gpg No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/source/Sources No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/source/Sources No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/source/Sources No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/source/Sources No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/binary-i386... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/binary-i386/P... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/binary-i386... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-es No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-en No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/i18n/Transl... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/i18n/Translat... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/i18n/Translat... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/i18n/Translat... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/i18n/Translat... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/source/So... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/sou... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/sourc... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/sou... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/binary-i3... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/bin... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/binar... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/bin... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/i18n/Tran... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/i18n/Tran... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/i18n/Tran... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/i18n/Tran... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/i18n/... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/i18n/... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/i18n/... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/i18n/... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/source/... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/s... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/sou... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/s... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/binary-... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/b... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/bin... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/b... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/i18n/Tr... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/i18n/Tr... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/i18n/Tr... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/i18n/Tr... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/i... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

W: Imposible obtener http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/i18... No se pudo conectar a cl.archive.ubuntu.com:http:

E: Algunos archivos de índice fallaron al descargar. Se han ignorado, o se han utilizado unos antiguos en su lugar
camilo@camilo-notebook:~$

Al intentar actualizar por medio del gestor de actualizaciones me arroja 'Falló al descargar la información del repositorio' y en el detalle indica:

W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/Release.gpg Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/Release.gpg Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/Release.gpg Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/source/Sources Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/source/Sources Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/source/Sources Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/source/Sources Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/binary-i386/Packages Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/binary-i386... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/binary-i386/P... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/binary-i386... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/main/i18n/Translation-en Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/multiverse/i18n/Transl... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/restricted/i18n/Transl... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal/universe/i18n/Translat... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/source/So... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/sou... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/sourc... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/sou... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/binary-i3... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/bin... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/binar... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/bin... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/main/i18n/Tran... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/multiverse/i18... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/restricted/i18... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-updates/universe/i18n/... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/source/... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/s... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/sou... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/s... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/binary-... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/b... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/bin... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/b... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/main/i18n/Tr... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/multiverse/i... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/restricted/i... Unable to connect to cl.archive.ubuntu.com:http:
, W:Failed to fetch http://cl.archive.ubuntu.com/ubuntu/dists/quantal-backports/universe/i18... Unable to connect to cl.archive.ubuntu.com:http:
, E:Some index files failed to download. They have been ignored, or old ones used instead.

Cunado intento instalar un programa con el apt-get, por ejemplo el emacs, me indica que no pudo encontrar el paquete. Un mensaje similar me da cuando lo intento hacer mediante el centro de software de Ubuntu (me aparecen los programas, pero sin el botón de instalar, solo el de 'más información'). Ademas no tengo instalado Synaptic, y tampoco puedo instalarlo. El contenido de mi lista de repositorios (/etc/apt/sources.list) es:

# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://cl.archive.ubuntu.com/ubuntu/ quantal main restricted
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://cl.archive.ubuntu.com/ubuntu/ quantal-updates main restricted
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://cl.archive.ubuntu.com/ubuntu/ quantal universe
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal universe
deb http://cl.archive.ubuntu.com/ubuntu/ quantal-updates universe
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://cl.archive.ubuntu.com/ubuntu/ quantal multiverse
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal multiverse
deb http://cl.archive.ubuntu.com/ubuntu/ quantal-updates multiverse
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://cl.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://cl.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu quantal-security main restricted
deb-src http://security.ubuntu.com/ubuntu quantal-security main restricted
deb http://security.ubuntu.com/ubuntu quantal-security universe
deb-src http://security.ubuntu.com/ubuntu quantal-security universe
deb http://security.ubuntu.com/ubuntu quantal-security multiverse
deb-src http://security.ubuntu.com/ubuntu quantal-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu quantal partner
# deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
# deb http://extras.ubuntu.com/ubuntu quantal main
# deb-src http://extras.ubuntu.com/ubuntu quantal main

No tengo problemas con mi conexión a internet (escribo esto desde el notebook nuevo). Revisé muchos foros, donde se coincide que el problema debe estar en la lista de repositorios, pero no he podido solucionar mi problema.

Agradecería muchisisísimo alguna ayuda que me permita solucionar esto.
De antemano gracias a todos y saludos

Imagen de Gabriel_M
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... en una terminal ejecuta:

sudo su
nano /etc/apt/sources.list

Borra su contenido y pega este:

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu quantal main restricted
deb-src http://archive.ubuntu.com/ubuntu quantal restricted main multiverse universe #Added by software-properties

## Major bug fix updates produced after the final release of the
## distribution.

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu quantal universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu quantal multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.


## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu quantal partner
deb-src http://archive.canonical.com/ubuntu quantal partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu quantal main
deb-src http://extras.ubuntu.com/ubuntu quantal main
deb http://security.ubuntu.com/ubuntu/ quantal-security restricted main multiverse universe
deb http://archive.ubuntu.com/ubuntu quantal-updates restricted main multiverse universe
deb http://archive.ubuntu.com/ubuntu quantal-proposed restricted main multiverse universe
deb http://archive.ubuntu.com/ubuntu quantal-backports restricted main multiverse universe

Guarda el archivo (Control + O)
Cierra nano (Control + X)
Y ejecuta

apt-get update
apt-get dist-upgrade
apt-get autoremove
apt-get clean
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Imagen de camilow
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Muchas gracias Gabriel... funcionó perfecto!

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