備份源sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
然後執行 sudo gedit /etc/apt/sources.list 命令 然後加入下面的源 保存後執行 sudo apt-get update 你會發現速度快的驚人
deb http://mirrors.163.com/ubuntu/ jaunty main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jaunty-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jaunty-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jaunty-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ jaunty-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jaunty main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jaunty-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jaunty-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jaunty-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ jaunty-backports main restricted universe multiverse
更多請參考 http://wiki.ubuntu.org.cn/%E6%B7%BB%E5%8A%A0%E5%85%B6%E4%BB%96%E8%BD%AF%E4%BB%B6%E5%BA%93