樹莓派-3 啓用root

默認是user: pi,  password: raspberry

經過以下設置root密碼並啓用

pi@raspberrypi:~ $ sudo passwd root
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
pi@raspberrypi:~ $ sudo passwd --unlock root
passwd: password expiry information changed.
pi@raspberrypi:~ $ su root
Password: 
root@raspberrypi:/home/pi#