Manage Linux with Azure Arc

Andres Bohren

2026-11-05

Hi All,

I’ve blogged about Azure Arc a while ago.

Now i’ve upgraded my Linux Firewall from Rocky 9.4 to Rocky 10.2

While installing the new Server i’ve:

Before it was a CentOS 8 Machine an i’ve blogged about that too.

Install ARC on Linux

You can create a Creation Script on Azure to install the Agent on Linux

Installation Script

Make sure you have installed wget

yum install wget

Create an installARC.sh and paste the Script and make it executable

vi installARC.sh
chmod +x installARC.sh

Execute the install Script

./installARC.sh

Now you need to Signin with DeviceCode

Agent is installed and connected to Azure

Now we can see the Linux Machine in the Azure ARC Resource Group

Details

As you can see, currently there are no Extensions installed

Make sure you have phyton and which installed

# List installed Packages
dnf list python3
dnf list which

# Install Packages
dnf install python3
dnf install which

We can see the ARC Server in Azure Update Manager. Let’s check for Updates

With that Action the LinuxOSUpdateExtension will be installed

After a short time, we can see that there are Updates available

Details of the avialable updates

Let’s install them

Updates have been installed

On the Machines view of Azure Update Manager - all ARC Servers are up to date including our Linux Server

If you ever need to Troubleshoot - these commands might be helpful

azcmagent show

azcmagent check --extensions all

Maybe i should have checked the Compatibitily Matrix of supported Linux OS for ARC and Update Management.

It does only list Rocky 8 and 9

Rocky 10.2 is already available since May 2026

With some troubleshooting i was lucky and it still worked out fine.

Now i have a current Linux managed by Azure Arc and Azure Update Management.

Regards
Andres Bohren