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If iBoot is on partition 1, and "all 3 partitions are APFS", does that mean the initial firmware also understands APFS in order to load iBoot itself, like EFI would? (Or is that initial firmware *also* called "iBoot"? This confuses me a bit.)
I just updated the page. There are two stages to iBoot; the first one lives in NOR flash. The Boot ROM does not understand APFS; the iBoot in NOR flash does. (I suspected, but wasn't sure about this bit, but I have just gotten confirmation)
