deb http://ftp.debian.org/debian/ lenny main contrib non-free deb-src http://ftp.debian.org/debian/ lenny main contrib non-free deb http://ftp.tw.debian.org/debian/ lenny main contrib non-free deb-src http://ftp.tw.debian.org/debian lenny main contrib non-free deb http://mirrors.163.com/debian/ lenny main contrib non-free deb-src http://mirrors.163.com/debian lenny main contrib non-free deb http://mirrors.geekbone.org/debian/ lenny main contrib non-free deb-src http://mirrors.geekbone.org/debian/ lenny main contrib non-free deb http://ftp.us.debian.org/debian/ lenny main contrib non-free deb-src http://ftp.us.debian.org/debian/ lenny main contrib non-free deb http://mirror.dlut.edu.cn/debian/ lenny main contrib non-free deb-src http://mirror.dlut.edu.cn/debian/ lenny main contrib non-free deb http://debian.csie.ntu.edu.tw/debian/ lenny main contrib non-free deb-src http://debian.csie.ntu.edu.tw/debian/ lenny main contrib non-free
常用到的幾個更新源，當然可以修改成對應的測試版(testing)和不穩定版(unstable)，其中臺灣和163的源強烈推薦，修改方法很簡單，執行：gedit /etc/apt/sources.list，可以使用其他的編輯器，將源列表修改即可，儲存後執行更新。