carlos@chernan:~/Desktop$ sudo apt-get update
Ign http://non-us.debian.org testing/non-US Release.gpg
Des:1 http://http.us.debian.org testing Release.gpg [189B]
Des:2 http://ftp.debian.org testing Release.gpg [189B]
Des:3 http://security.debian.org testing/updates Release.gpg [189B]
Ign http://non-us.debian.org testing/non-US Release
Obj http://http.us.debian.org testing Release
Obj http://ftp.debian.org testing Release
Obj http://security.debian.org testing/updates Release
Err http://non-us.debian.org testing/non-US/main Packages
  404 Not Found
Des:4 http://ftp.debian.org testing/main Packages/DiffIndex [2038B]
Des:5 http://http.us.debian.org testing/main Packages [6248kB]
Err http://non-us.debian.org testing/non-US/contrib Packages
  404 Not Found
Err http://non-us.debian.org testing/non-US/non-free Packages
  404 Not Found
Ign http://security.debian.org testing/updates/main Packages/DiffIndex
Des:6 http://http.us.debian.org testing/contrib Packages/DiffIndex [2023B]
Des:7 http://http.us.debian.org testing/non-free Packages/DiffIndex [2023B]
Ign http://security.debian.org testing/updates/contrib Packages/DiffIndex
Ign http://security.debian.org testing/updates/non-free Packages/DiffIndex
Obj http://security.debian.org testing/updates/main Packages
Obj http://security.debian.org testing/updates/contrib Packages
Obj http://security.debian.org testing/updates/non-free Packages
Descargados 6088B en 3s (1861B/s)
Imposible obtener http://non-us.debian.org/debian-non-US/dists/testing/non-US/main/binary-i386/Packages.gz  404 Not Found
Imposible obtener http://non-us.debian.org/debian-non-US/dists/testing/non-US/contrib/binary-i386/Packages.gz  404 Not Found
Imposible obtener http://non-us.debian.org/debian-non-US/dists/testing/non-US/non-free/binary-i386/Packages.gz  404 Not Found
Leyendo lista de paquetes... Hecho
E: Algunos archivos de índice no se han podido descargar, se han ignorado,
o se ha utilizado unos antiguos en su lugar.
carlos@chernan:~/Desktop$