Screwed Up Fusion Drive -- How to get back normal?

Discussion in 'Mac Basics and Help' started by looking4anotebo, Jul 21, 2017.

  1. looking4anotebo macrumors 6502

    Jul 9, 2007
    So I botched a clean install when I improperly deleted a bootcamp partition. This led to me having to rebuild the fusion drive, which I did, except I can not get it partitioned with Macintosh HD.

    I can't boot, only internet recovery. In terminal I typed "diskutil CoreStorage list" and this is what I get (pic attached)

    Update: I ran this in terminal: "diskutil cs createVolume LVGUUIDxxxxxxxx jhfs+ "Macintosh HD" 100%.

    And I can now see the Macintosh partition. It's taking up the entire fusion drive though. Is this correct? I think I'm missing something. The entire drive isn't usually allocated to Macintosh HD if I recall correctly.

    Attached Files:

  2. vkd macrumors 6502a


    Sep 10, 2012
    Boot off an install disk or do Internet boot, select Options/Terminal, erase your discs and create a new Fusion Drive. Close Terminal and continue to install a fresh copy of macOS.
  3. ApfelKuchen macrumors 68030

    Aug 28, 2012
    Between the coasts
    Yes, that is normal. Macintosh HD does take up the entire Fusion Drive. Then reinstall MacOS, then create the Boot Camp partition using Boot Camp Utility.

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