ubuntu searial rj32

 https://it001.pixnet.net/blog/post/325021405-it%E4%BA%8B%E4%BB%B6%E7%B0%BF-%E6%80%8E%E9%BA%BC%E7%94%A8ubuntu%E9%80%A3%E6%8E%A5%E7%B6%B2%E8%B7%AF%E8%A8%AD%E5%82%99%E7%9A%84serial-conso