I am new, and have been wondering if this can be done.
You can even boot from media on the USB host.
William, did you notice any performance benefits from using the usb hdd?
Compared to netbooting, I lost around 1M/s reads, but doubled my write times.
So, 10.6MB/s reads, but ~20MB/s writes. I would not expect those speeds from a flash drive though, unless you have a super duper high performance model.