HT202290: How to install OS X on multiple computers

Learn about How to install OS X on multiple computers
ChokedAdam
Level 1 (4 points)
Mac OS X

Q: Why is the user being made to download 5 Gb Sierra installer repeatedly for each device?

Unnecessary multiple downloads weighing down of bandwidth when you consider millions of users.

iMac, Concerns AppStore's download method

Posted on Oct 13, 2016 7:46 PM

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ChokedAdam

Q: Why is the user being made to download 5 Gb Sierra installer repeatedly for each device?

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  • Helpful answers

  • by QuickTimeKirk,

    QuickTimeKirk QuickTimeKirk Oct 13, 2016 11:37 PM in response to ChokedAdam
    Level 9 (53,301 points)
    Oct 13, 2016 11:37 PM in response to ChokedAdam

    You need to make a USB copy of the installer you downloaded to use it more than one device.

    The installer deletes itself after running to save on drive space.

  • by BobHarris,

    BobHarris BobHarris Oct 14, 2016 6:17 AM in response to ChokedAdam
    Level 6 (19,672 points)
    Mac OS X
    Oct 14, 2016 6:17 AM in response to ChokedAdam

    As soon as the Sierra install starts, "Quit"

    Then copy Applications -> "Install macOS Sierra" somewhere else.

    You can then transfer this installer to all the personal systems you own/control, keeping in mind that this installer is "Signed" with your Apple ID and all updates to this install will require your Apple ID going forward.

     

    If you want you can also create a bootable installer USB Thumb drive

    <Create a bootable installer for OS X - Apple Support>

    But this is _NOT_ required, as you can also just put the "Install macOS Sierra" on any system you want to upgrade, and launch it.