deb http://sft.if.usp.br/debian/ etch main contrib non-free deb http://sft.if.usp.br/debian-security/ etch/updates main contrib non-free deb-src http://sft.if.usp.br/debian/ etch main contrib non-free deb-src http://sft.if.usp.br/debian-security/ etch/updates main contrib non-free