thanks - though I'm not sure I'm seeing this problem... the usb drive is 2GB, and when I look at it with gparted libreelec is approx 0.5gb and storage is 1.5 gb?
Anyway, my question was really around once I have built a libreelec setup I'm happy with on the USB (with boot run)... I would like to be able to run that setup from the usb in ram so that any further updates could/would be discarded on reboot (or something similar)
thanks again