Mongo v6.0.0 immediately exits with featureCompatibilityVersion error

[Altay (Altay Hunter)]

@Doug_Duncan

Is the mongod process running?

No, it immediately terminates with the fatal featureCompatibilityVersion error whenever I attempt to start it.

@Doug_Duncan

Are you trying to upgrade from 4.4, or does your 5.0 database still have the FCV set to 4.4?

I haven’t attempted to perform an update before, so I’m assuming my databases still have FCV set to 4.4. Is there a way I can check?