Hi masterguido,
welcome to RuneAudio.
I have tried to connect it as a Network share, with the RPi2 ip, and the remote directory dev/sda1 (the point at which is connected the USB drive) but with no luck.
On a Pi2/3 with latest image the remote directory name is MusicStore/USB.
So use:
- Source name = what you like
- Fileshare protocol = SMB/CIFS
- IP address = your PIs IP
- Remote directory = MusicStore/USB CASE SENSITIVE!
- Guest access = OFF
- Advanced options = OFF
Frank