Is there any chance core can initialize IOs on device without register with a media manger ? In my understanding core cannot create target on device without a media manger, if core doesn't have a target how can core initialize IOs on these devices? If I'm wrong about this, please correct me.
You're right. This is preparation patches for system blocks. The core gets features added to work with the device, before gennvm is initialized. For that case, no media manager will have been initialized, and we therefore can't call it.
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