I installed an ASA 5515x with Firepower services version 5.4 about 2 years ago at a customer location. Also installed is a Firesight Management Center VM version 5.4. I have read the release notes on ugrading the FMC (version 6.2), and it states that the FMC must go through each release to get to 6.2. I think it was 5.4 > 6.0>6.01>6.1>6.2.
My question is, can I leave the Firepower module in the ASA at 5.4 as I upgrade the FMC to 6.2 through the various upgrade versions, then remove the Firepower version 5.4 in the ASA, and install Firepower module version 6.2, and reconfigure the Firepower module to connect back to the FMC.
Or do I have to upgrade the FMC one version, then repeat the upgrade on the Firepower module to same version? Repeat, again and again ?