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macOS Boot Process

Scheduled Pinned Locked Moved Apple
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  • W Offline
    W Offline
    Wayne Ho
    wrote on last edited by
    #1

    In the macOS Boot Process lesson of the Apple Certified Support Professional macOS 11, Don mentions starting at 3 minutes 20 seconds of the video that there is a booter in the form of an boot.efi file that resides in the mbr of the hard drive. However, I instead see the GUID partition scheme being used for the EFI partition, where the video talks about the booter (boot.efi) residing at 8:28 of the video. Do mac formatted hard drives use mbr partitions?

    Ronnie WongR 1 Reply Last reply
  • Ronnie WongR Offline
    Ronnie WongR Offline
    Ronnie Wong
    replied to Wayne Ho on last edited by
    #2

    @Wayne-Ho,

    I could be wrong but I believe this is setup for those that would have to run bootcamp with a WindowsOS. I'm not sure if this is still true.

    I believe you could disable SIP in recovery mode, then run sudo gpt --vv -r show /dev/disk0 to see it...but I've only got my laptop running Ventura and cannot tell you if things are different now.

    Cordially,
    Ronnie Wong
    Edutainer Manager, ACI Learning [ITPRO]
    *if the post has answered the question, mark as solved.
    **All "answers" and responses are offered "as is" and my opinion. There is no implied service, support, or guarantee by ACI Learning.

    1 Reply Last reply

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