#vim /etc/apt/sources.list

注释掉原来的,加上下面一段


deb http://mirrors.163.com/debian/ squeeze main non-free contrib

deb http://mirrors.163.com/debian/ squeeze-proposed-updates main non-free contrib

deb-src http://mirrors.163.com/debian/ squeeze main non-free contrib

deb-src http://mirrors.163.com/debian/ squeeze-proposed-updates main non-free contrib


deb http://ftp.us.debian.org/debian/ unstable main contrib non-free

deb ftp://debian.ustc.edu.cn/debian testing main non-free contrib


国外vps:

deb http://ftp.debian.org/debian squeeze main contrib non-free

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

deb http://packages.dotdeb.org squeeze all

deb-src http://packages.dotdeb.org squeeze all

deb http://ftp.us.debian.org/debian/ unstable main contrib non-free