Several customers reported problems while upgrading to FortiOS 5.4.1. FortGate 60D models did not boot up correctly after the upgrade. Fortinet is aware of the issue and mentioned it in the release notes: The following 60D models have an issue upon upgrading to FortiOS 5.4.1. The second disk (flash) is…
FortiOS 5.4.1 Upgrade / Boot Issue with FortiGate 60D
