[FrodeSolheim]

Originally Posted by nexusle

This means I must prepare a SD Card on a real Amiga before I can use it it FS-UAE? Or could I use a plain SD Card and setup with AOS 3.1 (example) in FS-UAE?

You should be to use it like an empty disk image file, which means you must also specify

hard_drive_0_type = rdb

to force RDB mode when the device is not initialized (as discussed in the earlier RDB thread).

Originally Posted by nexusle

How can I see, which /dev/... my SD Card is? Any Terminal command for this?

Good question, I'm really a Linux guy

Try the naive approach? Run

ls /dev/disk*

without the CF inserted, then insert it, wait a few seconds, try the same command again and see what new diskX device has appeared?

Alternatively, if it has an OS X-recognized file system, you can mount the card via "Finder" and use the following command in a terminal:

df

Remember to unmount before using... -and you probably want to use the full device (/dev/diskX), not a partition (/dev/diskXsY)...

Edit: Looks like you can also run:

disktool -l