Debian 啟用 root 帳號

sudo passwd root

sudo passwd -- unlock root

Ref：https://www.taiwaniot.com.tw/%E6%8A%80%E8%A1%93%E6%96%87%E4%BB%B6/%E6%A8%B9%E8%8E%93%E6%B4%BE%E6%8A%80%E8%A1%93%E6%96%87%E4%BB%B6/%E6%A8%B9%E8%8E%93%E6%B4%BE%EF%BC%88raspberry%EF%BC%89%E5%95%9F%E7%94%A8root-%E5%B8%B3%E8%99%9F/