The firmware for Athena's Target, Monitors, and Displays resides in the file system on each unit.

/home/pi/ESTBuild/builds/[build version]: Directory for each build version.

/home/pi/ESTBuild/est: Symbolic link that points to the current build version.

Manually Reverting to a Previous Version

Root access is required for the following steps.

1.Log into the EST Unit (see Network and Terminal Access).

2.Change to the build directory
cd /home/pi/ESTBuild

3.Remove the old symbolic link
rm est

4.Create the new symbolic link pointing to the reverted version
ln -s ~/ESTBuild/builds/[build version] est

Updating Athena's Software via bash Script

Root access is required for the following steps.

1.Log into the EST Unit (see Network and Terminal Access).

2.Change to the build's scripts system directory.
cd /home/pi/ESTBuild/est/scripts/system

3.Run the InstallBuild.sh bash script
bash ./InstallBuild.sh [build version]

Manually Updating Athena's Software

1.From Orion, click on Athena -> Update Athena's Software, to open the Athena Software Update form.

2.Type in the build version number in the "Athena Software Version to Upgrade "to field.

3.Click the Download Build File button.

4.Save the build file to a USB drive and transfer it over to the EST Unit.
Do not include your SharedKey.txt file on the USB drive, otherwise the EST Unit will reboot.

5.Log into the EST Unit (see Network and Terminal Access).

6.Change to the build directory
cd /home/pi/ESTBuild/build

7.Copy the build zip file to the build directory.
cp /media/pi/[usb drive name]/[build version].zip [build version].zip

8.Unzip the build file
unzip [build version].zip -d [build version]

9.Create the new symbolic link pointing to the reverted version
cd ..
ln -s ~/ESTBuild/builds/[build version] est