apt-get update --fix-missing(更新索引文件)

apt-get upgrade(升级软件包)

apt-get dis-upgrade

更换更新源 vi /etc/apt/sources.list

#官方源
deb http://http.kali.org/kali kali main non-free contrib
deb-src http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free

#激进源，新手不推荐使用这个软件源
deb http://repo.kali.org/kali kali-bleeding-edge main
deb-src http://repo.kali.org/kali kali-bleeding-edge main

#中科大kali源
deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free

#阿里云kali源
deb http://mirrors.aliyun.com/kali kali main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali main non-free contrib
deb http://mirrors.aliyun.com/kali-security kali/updates main contrib non-free