Ubuntu9.04的科大源为(强烈推荐此源)：
deb http://debian.ustc.edu.cn/ubuntu/ jaunty main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu/ jaunty-backports restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu/ jaunty-proposed main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu/ jaunty-security main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu/ jaunty-updates main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu/ jaunty main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu/ jaunty-backports main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu/ jaunty-proposed main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu/ jaunty-security main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu/ jaunty-updates main restricted universe multiverse

Ubuntu8.10的163源为(强烈推荐此源)：

deb http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ intrepid-backports main restricted universe multiverse

Ubuntu 8.04的163源为(强烈推荐此源):
deb http://mirrors.163.com/ubuntu/ hardy main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ hardy-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ hardy-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ hardy-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ hardy main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ hardy-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ hardy-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ hardy-backports main restricted universe multiverse