Connect the HDMI cable to the Erle-Brain 2 HDMI port. After booting a GUI will be displayed.

Once the Erle-Brain 2 boots you will see a nice operating system. Once there, plug a mouse and a keyboard and select the drone. Erle-Brain 2 will configure itself automatically.

PX4 instructions are available here.

After choosing your vehicle, GUI is disabled.

If you need restart your system to default, type in your terminal erle-reset.

Type the following in Erle-Brain 2 to get root access:

sudo su