App Volumes – Upgrade Agent to v. 2412

Release date: February 14th 2025

Welcome to my Omnissa App Volumes series. In this session I will describe how I upgraded the App Volumes Agent in my Horizon Template to v. 2412. According to Omnissa’s official documentation, this should be done as step 11 in the supported update sequence, as shown below.

I start out by downloading the installation media from Omnissa Customer Connect

As I’ve gone over to using MDT to create Horizon templates, described here: Automating Template Creation & Maintenance, I will update the App Volumes Agent in the Deployment Share, and run through the task sequence to create a new template. Before I begin, I open the task sequence and can see that it has found the 4.14.0.554 Agent in the Deployment Share.

After updating the MDT Plugin, as described here: Horizon – Upgrade OSOT MDT Plugin to v. 2412, the Plugin NO longer worked, so I decided to use a Powershell script for this step in the task sequence instead. The silent upgrade parameters are available here: Upgrade App Volumes Agent Silently. As the task-sequence copies the OSOT-folder (inside the DeploymentShare), to C:\OSOT earlier in the Task Sequence, I created the Powershell-script in the OSOT-folder and made a folder containing the install media.

The Powershell-script will unblock the msi-file and install the App Volumes Agent using the silent install options I declare as arguments

_{$ErrorActionPreference = "Stop"
$AppVolAgentMsi = "App Volumes Agent.msi"
$AppVolAgentArgs = "/qn /norestart MANAGER_ADDR=<FQDN AVN> MANAGER_PORT=443 EnforceSSLCertificateValidation=1 NONPERSISTEN=1"

 # Unblock App Volumes Agent Installer
Write-output "======Unblock Executables....."
Unblock-File C:\Osot\Install\AppVolumesAgent\$AppVolAgentMsi -Confirm:$false -ErrorAction Stop 

# Install App Volumes Agent
Write-output "======Install App Volumes Agent....."
Try 
{
   Start-Process C:\Osot\Install\AppVolumesAgent\$AppVolAgentMsi -ArgumentList $AppVolAgentArgs -PassThru -Wait -ErrorAction Stop
}
Catch
{
   Write-Error "Failed to install the App Volumes Agent"
   Write-Error $_.Exception
   Exit -1 
}}

I add the Powershell script as a step in my task sequence and run through it to update the App Volumes Agent.

This completes my upgrade of the App Volumes Agent and Tools. My next logical step would now be to upgrade the App Volumes Templates, this I have posted here: App Volumes – Upgrade Templates to v. 2412

Omnissa Documentation:

App Volumes – Upgrades

VMware App Volumes planning, deployment etc.

Disclaimer: Every tips/tricks/posting I have published here, is tried and tested in different it-solutions. It is not guaranteed to work everywhere, but is meant as a tip for other users out there. Remember, Google is your friend and don’t be afraid to steal with pride! Feel free to comment below as needed.

Release date: February 14th 2025

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