编译busybox

一、yum install gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel zlib-devel glibc-static ncurses-devel lbzip2

二、wget https://busybox.net/downloads/busybox-1.30.1.tar.bz2

三、tar xf busybox-1.30.1.tar.bz2

四、cd busybox-1.30.1/

五、make menuconfig

按下面选择，把busybox编译也静态二进制、不用共享库 Busybox Settings -->Build Options -->[*] Build BusyBox as a static

六、make && make install 如果出错，执行make clean后，重新执行上面命令

七、mkdir /mnt/sysroot/

八、cp -a _install/* /mnt/sysroot/