[Qemu-discuss] qemu-nbd: knowing which nbd device number to connect

[Raphael Bauduin]

Hi,

I'm accessing qcow2 images via nbd. This is done with a command as
qemu-nbd -c /dev/nbd0 /path/to/image.qcow

When making several images available, I use subsequent numbers for the /dev/nbd device to attach to. Is there a way to get the first available nbd device number ?

Thanks

Raph