"Error, Wrong block CRC" of lunix.fds booting

[kazueda]

Hello from Japan.

I am interested in booting homebrew FDS files.
"Lunix.fds" is known as UNIX like OS booting on the Famicom Disk System.
File size of lunix.fds is 14 kB. So I made 65516 bytes file from the lunix.fds.
The file was loaded without any errors.
But when I proceed to load shell program, "Error, Wrong block CRC" was displayed.
I hope lunix.fds runs on FDSkey.

PS
Url of lng-fds in github.com
https://github.com/decrazyo/lng-fds
Operating lunix.fds, we need NES (Famicom), Famicom Disk System RAM adaptor and Family Basic Keyboard.
Japanese guy suggets a usb keyboard converter for NES/Famicom.
Blog url
https://qiita.com/BUBUBB/items/5e529ae68f9f83394a09