Upgrading multiple firmware versions on FortiGate
When using FortiManager to upgrade firmware on FortiGate, FortiManager can choose the shortest upgrade path based on the FortiGate upgrade matrix. In a multi-step firmware upgrade, each upgrade is a subtask. You can also enable the option to skip all intermediate steps in an upgrade path when available. See Upgrading firmware.
You can use the FortiManager GUI to review the shortest upgrade path. You can also use the CLI to view and check the shortest upgrade path for a managed device by using the diagnose fwmanager command.
In this example, the device (ID 210) is on version 7.2.4 and the administrator wants to upgrade it to version 7.4.3. Using the diagnose fwmanager command, they are able to see the upgrade path in the CLI:
diagnose fwmanager show-dev-upgrade-path 210 7.4.3
Enterprise_Second_Floor(210): ->7.2.4-b1396-F ->7.4.1-b2463-F ->7.4.3-b2573-F
|
It is recommended to also check that the upgrade path for FortiGate reported by FortiManager matches the upgrade path reported on the FortiCloud FortiCare portal for FortiGate devices. |
To upgrade multiple firmware versions using the GUI:
-
Configure the firmware upgrade for the device in the Device Manager. See Upgrading firmware and Firmware templates.
-
When the upgrade begins, each firmware upgrade in the path is listed as a subtask.
When all the subtasks reach a status of 100%, the upgrade completes.
-
When the upgrade completes, click Close.