Unable to work: Install JetPack L4T in Tx1

Hello,
I tried to re-burn TX1.

Based on virtualBox ubuntu 16.4
It can’t work when shows as bellow:
tegra --bac P2180_A00_LP4_DSC_204Mhz.bct --chip 0x21 --updatebfsinfo flash.xml.bin

Any idea?
Thank you!

VMs don’t work…or at least not most of the time (VMs have USB problems…sometimes also network problems). Sometimes they can be made to work. See:
https://devtalk.nvidia.com/default/topic/1002081/jetson-tx2/jetpack-3-0-install-with-a-vm/