QUOTE(dharrison @ Jan 25 2010, 06:31 AM)

If you are planning on using an external HDD on the JTAG'd box, why would you want your XBOX 360 hard drive on it? I don't think there can be anything on the XBOX 360 that you cannot, one way or another, put on your external drive and end up just using one HDD for one console, and one for the other.
I don't know personally what would happen if you put homebrew on your XBOX 360 HDD and try using it online on another console. This is mainly because people usually don't try these things, cause they have a sense to know what might happen. But, if you want to find out, go ahead and then post your results. Otherwise, in my personal opinion, I wouldn't advise it and I would just stick to each one having its own HDD.
thanks for the reply.
I haven't got the jtagged console yet so haven't had the chance to have a play.
So from what your saying would I be able to run the emulators and xexloader from the external hdd?
The main reason I want to do it is because when I play backups on one console then go to the other To play originals it keeps all my achievements and profile on the same HDD.
Does that make sense?