I'm see that iso images available but can't understand how to use it. All manuals
says about compressed *.raw.xz images which must be unpacked (at least under windows) to
write on SD card. I've tried to use win32dd or some other raw copy tools to write iso
image to SD card (and even tried USB stick) but no luck. May be someone can explain how to
use iso installer images to install system like it installed on normal PC.