Firmware upgrades are prevented for FortiGate HA clusters in MVC mode

FortiManager detects FortiGate HA clusters operating in multi-version cluster (MVC) mode, provides a warning, and prevents the cluster firmware from being upgraded.

For more information on MVC mode, see the FortiGate Administration Guide.

Example

1. Configure the FortiGate HA cluster with MVC mode:

   1. On the first FortiGate, configure HA settings in System > HA.
      
      

   2. In the FortiGate CLI, set upgrade-mode to local-only.
      
      

   3. Repeat the steps above on the second FortiGate.

   4. Go to System > HA and verify that the HA is formed and synchronized.
      

2. Attempt to upgrade the FortiGate cluster from FortiManager.

   1. Go to Device Manager > Device & Groups > Managed FortiGate > Dashboard: Summary, and verify that the cluster is in Local Only HA Upgrade Mode.
      
      

   2. Go to Device Manager > Device & Groups > Managed FortiGate, select the device and click More > Firmware Upgrade and try to perform a direct upgrade of the firmware. A warning message is displayed denying the firmware upgrade of the MVC enabled HA cluster.
      
      

   3. Go to Device Manager > Firmware Templates, and try to assign the device to a firmware template. A warning message is displayed stating that firmware upgrades for MVC-enabled HA clusters is not allowed.