• We created this page for the 19.07 release of OpenWRT since the CoovaChilli that comes standard included with this release of OpenWRT does not include the JSON Interface (Utilised by RADIUdesk).
• Our instructions here will help you build your own built of OpenWRT which will include CoovaChilli that has the support for the JSON interface included.

• We assume you have a standard install of Ubuntu 18.04 or Ubuntu 20.04
• Install the required packages to ensure the SDK can build the firmware

sudo apt-get update
sudo apt-get install build-essential subversion git-core libncurses5-dev zlib1g-dev gawk flex quilt libssl-dev xsltproc libxml-parser-perl unzip mercurial

• Our suggestion is to create a folder that will indicate the version of the firmware you'll be building.
• Here we create a folder for the 19.07.6 release (The latest for the 19.07 branch).

# Create the working directory 
mkdir 19.07.6
# Change to our working directory 
cd 19.07.6

• Do a clean checkout of the OpenWRT repository

git clone https://git.openwrt.org/openwrt/openwrt.git

• This repository has various branches. To see which branches are available and which one we are currently set to use, issue the following command.

#We may first need to change our directory to the openwrt directory
cd openwrt
git branch -a
#Also to see the tags 
git tag -l
</code bash>
  * We will be checking out the v19.07.6 tag.
<code>
git checkout v19.07.6

• Confirm that this v19.07.6 is now checked out.

git branch

• Update the package feeds

./scripts/feeds update