I have created a boot usb drive following this guide: http://wiki.openmediavault.org/index.php?title=Installation
I can do it on windows but I am not able to boot from the usb drive.
If I try this command: sudo dd if=Downloads/openmediavault_1.9_amd64.iso of=/dev/disk2 bs=4096 on my mac I get this error: dd: /dev/disk2: Operation not supported
I have also tried with /dev/disk2s1
I suppose that after burning the iso to the usb stick that I should be able to boot from it, boths from windows and mac