Ah, entendi, eu aqui também uso um sistema híbrido ( Satble, Testing e Unstable ), lembrando que a versão unstable é para quem gosta de emoções fortes !!! :-)
bom, o meu preferences ta assim
Package: *
Pin: release o=Debian,a=unstable
Pin-Priority: 1000
Package: *
Pin: release o=Debian,a=testing
Pin-Priority: 100
Package: *
Pin: release o=Debian,a=stable
Pin-Priority: 10
e o meu
source.list
ta assim
# Debian Stable
deb http://ftp.debian.org/debian/ stable main non-free contrib
deb-src http://ftp.debian.org/debian/
stable main non-free contrib
# Debian Testing
deb http://ftp.debian.org/debian/ testing main non-free contrib
deb-src
http://ftp.debian.org/debian/ testing main non-free contrib
# Debian Unstable
deb http://ftp.debian.org/debian/
unstable main non-free contrib
deb-src
http://ftp.debian.org/debian/ unstable main non-free contrib
# Debian Multimedia ( Cristhian Marillat )
deb
http://www.debian-multimedia.org sid main
deb-src
http://www.debian-multimedia.org sid main
--
Att
Debian User
João Schmutz
Geek by nature, linux by choice