Environment setup for MXNet

1. Install Ubuntu 20.04 There are many tutorials about how to install the Ubuntu system available, here are some simple steps to install Ubuntu through a USB boot drive.

Download Ubuntu 20.04 LTS image file here: https://releases.ubuntu.com/focal/

Use a USB boot drive creation tool such as Rufus to flash the downloaded images file to a USB drive to make an installation media of Ubuntu.

Boot from the USB and follow the prompts to install Ubuntu, it is recommended to select the option "Install third-party software for graphics and Wi-Fi hardware and additional media formats" during installation, this will automatically install the GPU driver.