I have been trying to root my Nexus 5x running Android 7.1.2 (N2G47F)
So put SuperSU.zip file to install it from TWRP.
I executed following command - fastboot flash recovery twrp-3.0.2-0-bullhead.img
But when I get into TWRP I can not find SU file becouse TWRP can not find nexus build in card.
In log console I am getting following error.
Unable to find partition for path '/sdcard'