FOX Board G20 technical documentation

Build a customized Linux Debian Buster image for FOX Board G20 using Debos

Debos is a tool to make the creation of Debian-based OS images simpler. This article illustrates how to create microSD images for the FOX Board G20 single board computer

To follow this article is requested to have a real PC (no V.M.) running Debian Buster 10 distribution on i386 or amd64 architecture.

The rootfs is assembled from scratch but the Kernel zImage are just copied inside the final image.

To build them from scratch follow these articles:

Installing Debos package:

sudo apt update
sudo apt install debos

Clone this git repository:

git clone
cd debos-for-acme-boards

Launch the command to generate the image for your Acme Systems board:

sudo debos foxg20.yaml

The file


will contains the microSD image

Use Etcher to write your microSD with the image generated

at bootstrap use:

Login: acme
Password: acmesystems

to extend the rootfs to fill the microSD size type:

sudo growpart /dev/mmcblk0 2
sudo resize2fs /dev/mmcblk0p2 


This article is based on Antonio Galea works available on this link:


Sergio Tanzilli
Systems designer, webmaster of and founder of Acme Systems srl

Personal email:
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FOX Board G20 technical documentation