# deb cdrom:[Debian GNU/Linux 4.0 r1 _Etch_ - Official i386 NETINST Binary-1 20070820-20:21]/ etch contrib main deb cdrom:[Debian GNU/Linux 4.0 r1 _Etch_ - Official i386 NETINST Binary-1 20070820-20:21]/ etch contrib main deb [ftp.fr.debian.org] etch main deb-src [ftp.fr.debian.org] etch main deb [security.debian.org] etch/updates main contrib deb-src [security.debian.org] etch/updates main contrib
# multimedia deb http: //www.debian-multimedia.org/ etch main
sudo apt-get update ou bien : sudo aptitude update
apt-key add CLEF.gpg apt-get updateC'est pareil non ?
man gpg