Jetson TX2 setup issue

Trying to setup board via the SDK Manager from Ubuntu VM on VirtualBox. Could not flash the board due to failure to detect the board via USB. How to solve this?

This is the reason VMs are not officially supported (this is a flaw of VMs). During the flash the USB disconnects and reconnects many times, and unless the VM has been configured to always receive the USB (and not the host of the VM), then USB is lost. I couldn’t tell you how, but if you learn how to configure such that the recovery mode Jetson is always passed to the VM no matter how often it disconnects/reconnects, then you can get it to work.