Я процитирую документацию, мне же не сложно...

http://aminet.net/package/disk/misc/cfd
Installation
============
Copy cfd/devs/compactflash.device to DEVS:
Have fat95 installed on your system.
Mount the drive by double-clicking cfd/devs/CF0.


http://aminet.net/package/disk/misc/fat95

Installing disk drives under AmigaOS is really quite simple ;-)
There are always 2 programs involved:

1. a hardware driver, giving block-wise access to the drive
as a whole. That driver is either part of the Kickstart ROM,
or it is a separate file by a name like "DEVS:xxx.device".

2. a file system. That is some sort of storage manager in
charge of such things as partitions, drawers and files.
The standard file system is in ROM as well. Others, like
fat95, are files inside the L: drawer.