參考資訊：
https://www.ekesete.net/log/?p=9504
https://haruka.cafe/posts/it/p000157/
https://github.com/ichinomoto/dm200_tools
https://qiita.com/alt-core/items/0467dca2f4b50d3e3003
步驟如下：
$ cd $ git clone https://github.com/ichinomoto/dm200_tools $ cd dm200_tools/initramfs $ sudo make_initramfs.sh