# Create ZOS USB 

Go to node installer (see in dashboard there is a link) but for your reference https://bootstrap.grid.tf/



![](img/bootstrap_zos.png)

fill in your farm id, in my case 3456

![](img/zos_selection.png)

select main network

![](mg/zos_image.png)

select the top one: USB image

It will now prepare this USB image and download.

Use the Balena etcher tool again to burn this USB image to USB

![](img/usb_burn1.png)

select the downloaded image and put on USB stick.

Once done boot the 3node (your computer) with this USB stick.