Um bom sources.list

É so copiar e colar no seu sources.list


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# sources.list - fontes para o apt de sistemas Debian ou derivados.

# data da versão: 04/02/2009

# Notas:
# Quando pedir uma chave pra algum pacote, pegue os últimos 8 números da chave e coloque na variável KEY, como abaixo , e execute os comando a seguir:
# KEY= ; gpg --keyserver subkeys.pgp.net --recv $KEY ; gpg --export --armor $KEY | sudo apt-key add -
#

# Fontes oficiais.
deb http://ftp.br.debian.org/debian/ etch main contrib non-free
deb-src http://ftp.br.debian.org/debian/ etch main contrib non-free

deb ftp://ftp.us.debian.org/debian/ etch main contrib non-free
deb-src ftp://ftp.us.debian.org/debian/ etch main contrib non-free

deb ftp://mirrors.kernel.org/debian/ etch main contrib non-free
deb-src ftp://mirrors.kernel.org/debian/ etch main contrib non-free

#deb http://packages.dotdeb.org etch all
#deb-src http://packages.dotdeb.org etch all

deb http://security.debian.org/ etch/updates main contrib non-free
deb-src http://security.debian.org/ etch/updates main contrib non-free

# Multimidia.
deb http://www.debian-multimedia.org etch main
deb-src http://www.debian-multimedia.org etch main

# Fonte não-oficial.
deb http://ftp.debian-unofficial.org/debian etch main contrib non-free
deb-src http://ftp.debian-unofficial.org/debian etch main contrib non-free

# Opera
deb http://deb.opera.com/opera etch non-free
deb-src http://deb.opera.com/opera etch non-free

# Pacotes atuais para versão etch do Debian.
deb http://www.backports.org/debian etch-backports main contrib non-free
deb-src http://www.backports.org/debian etch-backports main contrib non-free