Emulate Usb Without Dongle I Need To Create A LiveUSB Linux Image On A USB Hard Drive?

I need to create a LiveUSB Linux image on a USB hard drive? - emulate usb without dongle

In particular, I would like to create a complete installation of Linux on the USB drive, but the detection capability of the driver a full live CD. LiveCD do not want a USB hard drive not RAMDrive and non-persistent, if I emulate changes to configuration files, etc., without having to create stored on another partition and a configuration file. Is this possible? Could I install Ubuntu on a USB disk () full install, but now I have to recognize the ability of the driver and have it auto update the XF86Config as a LiveCD like to add. Who knows how to do this?