Editar o sources.list com Geditgedit /etc/apt/sources.list
#segurança deb http://security.debian.org/ lenny/updates main contrib deb-src http://security.debian.org/ lenny/updates main contrib #debian # deb http://http.us.debian.org/debian/ lenny main contrib non-free # deb ftp://mirrors.kernel.org/debian/ lenny main contrib non-free # deb http://download.unesp.br/linux/debian/ lenny main contrib non-free deb http://ftp.br.debian.org/debian/ lenny main contrib non-free deb-src http://ftp.br.debian.org/debian/ lenny main contrib non-free #som video # gpg --keyserver subkeys.pgp.net --recv-keys 07DC563D1F41B907 # gpg --export --armor 07DC563D1F41B907 | apt-key add - deb http://www.debian-multimedia.org/ lenny main deb-src http://www.debian-multimedia.org/ lenny main #backports - ainda nao foi ligado um backports para lenny # gpg --keyserver subkeys.pgp.net --recv-keys EA8E8B2116BA136C # gpg --export --armor EA8E8B2116BA136C | apt-key add - deb http://www.backports.org/debian lenny-backports main contrib non-free deb-src http://www.backports.org/debian lenny-backports main contrib non-free #este volatile veio ja com instalacao # Line commented out by installer because it failed to verify: deb http://volatile.debian.org/debian-volatile lenny/volatile main # Line commented out by installer because it failed to verify: deb-src http://volatile.debian.org/debian-volatile lenny/volatile main
depois execute:
apt-get update
e também instale as chaves do endereços
apt-get install debian-multimedia-keyring debian-backports-keyring