首先确定能连上网
root@bt:~# gedit /etc/apt/sources.list
deb http://mirrors.163.com/ubuntu/ lucid main universe restricted multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid main universe restricted multiverse
deb http://mirrors.163.com/ubuntu/ lucid-security universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ lucid-security universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ lucid-updates universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ lucid-proposed universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ lucid-proposed universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ lucid-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ lucid-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ lucid-updates universe main multiverse restricted
deb http://mirror.edu.backtrack-cn.org/backtrack/32 revolution main microverse non-free testing
deb http://mirror.edu.backtrack-cn.org/backtrack/all revolution main microverse non-free testing
deb http://mirror.edu.backtrack-cn.org/backtrack/source revolution main microverse non-free testing
apt-get update
安装GNOME版中文版：apt-get install language-selector