# stable deb http://ftp.de.debian.org/debian/ sarge main contrib non-free deb-src http://ftp.de.debian.org/debian/ sarge main contrib non-free deb http://ftp.de.debian.org/debian-non-US/ sarge/non-US main contrib non-free deb-src http://ftp.de.debian.org/debian-non-US/ sarge/non-US main contrib non-free # testing deb http://ftp.de.debian.org/debian/ testing main contrib non-free deb-src http://ftp.de.debian.org/debian/ testing main contrib non-free # unstable deb http://ftp.de.debian.org/debian/ unstable main contrib non-free deb-src http://ftp.de.debian.org/debian/ unstable main contrib non-free # security updates deb http://security.debian.org/ sarge/updates main contrib non-free deb http://security.debian.org/ testing/updates main contrib non-free # sarge backports deb http://www.backports.org/debian/ sarge-backports main # Marillat's multimedia packages deb http://www.debian-multimedia.org/ sarge main deb http://www.debian-multimedia.org/ etch main
Read this first to understand what's that about:
/etc/apt/preferences
Package: * Pin: release o=Debian,a=stable Pin-Priority: 900 Package: * Pin: release o=Debian,a=testing Pin-Priority: 400 Package: * Pin: release o=Debian,a=unstable Pin-Priority: 300 Package: * Pin: release a=sarge-backports Pin-Priority: 200 Package: * Pin: release o=Debian Pin-Priority: -1
If you get errors like this:
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907
You need to add the repositories key, fetch it from a public keyserver (the keyid are the last 8 chars):
#> gpg --keyserver wwwkeys.eu.pgp.net --recv-keys 1F41B907 #> gpg --armor --export 1F41B907 | apt-key add -