kail 2.0 源更新

#kali官方源
deb http://http.kali.org/kali kali-rolling main non-free contrib
#中科大的源
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib

修改软件更新源配置文件：

leafpad /etc/apt/sources.list

将新的Kali源粘贴进去，同时将官方源用#号注释掉。
再:

apt-get update & apt-get upgrade
apt-get dist-upgrade
apt-get clean