Station PCs support various operating system.

You can connect to the PC to flash the OS via a cable,

or create a bootable TF card for convenient switch of systems.

Watch the video to learn how to create a bootable card and use it.

When booting via bootable card, you need to erase the system in EMMC or temporarily remove the EMMC module.
Then run Ubuntu OS.

ROM and Tool:
Ubuntu ROM: Ubuntu18.04

Usually I will open the case to remove the EMMC temporarily because I want to keep the Station system and application data in the EMMC.
I will install it back when needed.