Software Guide

Updating source and images

Updates to the Chameleon96® project are available from the VM via SVN. The following directories are maintained by SVN:


These are available via SVN here

with username: chameleon96 and password: Chameleon2017@NovTech

First update

Initially, it is a good idea to pull the latest support files from SVN and update the svn_script, overlay and buildroot .config files located at ~/Projects/chameleon96.

To do this, run the following commands:

cd ~/Projects/support_files
svn update

Updating from SVN with script

For your convenience, a script has been prepared which will update each of the three SVN repositories from within the ~/Projects/chameleon96 directory. This script is pre-installed at that location, but the SVN updated version of it can be found in the ~/Projects/support_files directory.

To update the source and images, run the following commands (you may need to provide login credentials as indicated above):

cd ~/Projects/chameleon96
./svn_script get support_files
./svn_script get linux
./svn_script get uboot

Building source and images

Please refer to the Chameleon96® User Guide for instructions on retrieving and configuring the VM for use.

For convenience of development full source and pre-compiled images for console and GUI configurations are provided. The virtual machine is pre-configured with the necessary tools and packages for compilation.

Important VM directories

Open a terminal in the virtual machine. Change directory to the Projects directory

cd ~/Projects

This directory contains the following directories:

  • buildroot-2015.08.01 – buildroot and associated support packages
  • chameleon96 – The buildroot project directory, containing a buildroot tree pre-configured for the Chameleon96®.
  • support_files – NovTech support files, including
  • scripts to update VM packages and download from SVN.

Compiling in Buildroot

Change directory to ~/Projects/chameleon96 by typing

cd ~/Projects/chameleon96

Configure buildroot to include whatever packages you desire by typing

make menuconfig

and selecting packages.

Compile the buildroot tree by typing


It will take some time to compile.

When completed, you should see something like this:

Programming compiled images to SD/MMC cards

Once the compilation is complete, you will need to place the images onto an SD/MMC card for use in the Chameleon96®. The compiled buildroot images are located in: ~/Projects/chameleon96/images

For convenience, a script has been provided which will place the images onto an SD/MMC card. Insert the SD/MMC card into your PC and connect it to the VM by selecting it from the Removable devices menu.

From the ~/Projects/chameleon96 directory run

./mk_chameleon96_sd -a sdb

This will program the contents of the ~/Projects/chameleon96/images directory onto the SD/MMC card at /dev/sdb. If your card is NOT located on /dev/sdb, use the appropriate device handle.

Warning - this script can be destructive if the wrong device handle is used. Please verify your SD/MMC card is at the expected location before executing. The card location can be verified by running

cat /proc/partitions

and looking for /dev/sdb. 
The script can also place individual portions of the compiled images. Run


without options for more information.

Programming pre-compiled images to SD/MMC cards

Pre-compiled images for both the console and graphical systems are available from here in the 03 – Compiled SD Images directory.

Images in 03.01 – Card Images can be programmed directly to SD/MMC cards with dd or Win32DiskImager per instructions in the Chameleon96® User Guide.

Images in 03.02 – Card Contents can be downloaded to the VM extracted. These images can be written to cards using the mk_chameleon96_sd script included in their respective directories.