VVictoria:/home/federico# apt-get update
Des:1 ftp://ftp.nerim.net etch Release.gpg [189B]
Obj ftp://ftp.nerim.net etch Release
Ign ftp://ftp.nerim.net etch Release
Obj ftp://ftp.nerim.net etch/main Packages
Des:2 http://http.us.debian.org testing Release.gpg [189B]
Des:3 http://http.us.debian.org sid Release.gpg [189B]
Des:4 http://nisamox.fciencias.unam.mx sid Release.gpg [189B]
Obj http://http.us.debian.org testing Release
Obj http://http.us.debian.org sid Release
Des:5 http://ftp.de.debian.org testing Release.gpg [189B]
Des:6 http://ftp.de.debian.org sid Release.gpg [189B]
Obj http://ftp.de.debian.org testing Release
Obj http://ftp.de.debian.org sid Release
Obj http://http.us.debian.org testing/main Packages
Obj http://http.us.debian.org sid/main Packages
Obj http://http.us.debian.org sid/contrib Packages
Obj http://http.us.debian.org sid/non-free Packages
Obj http://ftp.de.debian.org testing/main Packages
Obj http://ftp.de.debian.org sid/main Packages
Obj http://ftp.de.debian.org sid/contrib Packages
Obj http://ftp.de.debian.org sid/non-free Packages
Obj http://nisamox.fciencias.unam.mx sid Release
Obj http://nisamox.fciencias.unam.mx sid/main Packages
Obj http://nisamox.fciencias.unam.mx sid/contrib Packages
Obj http://nisamox.fciencias.unam.mx sid/non-free Packages
Obj http://nisamox.fciencias.unam.mx sid/main Sources
Obj http://nisamox.fciencias.unam.mx sid/contrib Sources
Obj http://nisamox.fciencias.unam.mx sid/non-free Sources
Descargados 194B en 16s (12B/s)
Leyendo lista de paquetes... Hecho
W: GPG error: ftp://ftp.nerim.net etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907
W: Tal vez quiera ejecutar 'apt-get update' para corregir estos problemas