編譯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
按下面選擇，把busybox編譯也靜態二進制、不用共享庫 Busybox Settings -->Build Options -->[*] Build BusyBox as a static
六、make && make install 如果出錯，執行make clean後，重新執行上面命令
七、mkdir /mnt/sysroot/
八、cp -a _install/* /mnt/sysroot/