Here's what I mean:
I normally install by running a Ubuntu Live USB, clicking "try" Ubuntu, and when I'm ready, I double-click the "Install Ubuntu" icon on the desktop.
Now, I have an eSATAp port and what I'd like to do is connect my hard drive directly to my laptop/desktop which already has Ubuntu running on it and simply run that same application that's available on the Live CD/USB to install it on the external drive.
I'm open to other methods as well, as long as I don't have to "burn" an ISO to a USB, then reboot from the USB, then install it to the external drive.
A million thanks!