I've tried following the old installtointernal script to try to install it to the NAND (at least the data) for a S905X2 box (Mecool KM9), but I couldn't find /dev/system for eg. and some other partitions.
Can someone tell me or point me in the right direction on to install it to the NAND at the least the system, the boot could be just from the USB or MicroSD.