Downgrading from Big Sur to Catalina

Started 3 months ago | Discussions thread
lightandaprayer Veteran Member • Posts: 4,743
Re: Stuck With Big Sur

Nick5 wrote:

Since Mojave your OS Extended (Journaled) internal HDD on iMac 2017, 2019 Fusion Drive has converted to APFS from OS Extended Journaled.

I'm confused. . .  Aren't Fusion drives exempt from APFS formatting?  (Your syntax isn't helping. . . )

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