https://blog.wongcw.com/2021/11/16/freebsd%e6%9c%80%e6%96%b0%e5%ad%a3%e5%a0%b1%ef%bc%9a%e6%94%b9%e5%96%84%e5%95%9f%e5%8b%95%e6%99%82%e9%96%93-%e5%84%aa%e5%8c%96linux%e5%ae%89%e8%a3%9d%e5%8c%85%e7%9b%b8%e5%ae%b9%e7%ad%89/