macOS Sierra USB installer

Discussion in 'macOS Sierra (10.12)' started by Tamagotchi, Jun 13, 2016.

  1. Tamagotchi macrumors 6502

    Tamagotchi

    Joined:
    Jun 13, 2013
    #1
    To make a bootable USB installer, format a USB to OSX Extended (journaled) naming it Untitled, download the developer preview...

    Then type the following on terminal:

    sudo /Applications/Install\ 10.12\ Developer\ Preview.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ 10.12\ Developer\ Preview.app --nointeraction

    Cheers
     
  2. antmarobel macrumors 6502

    antmarobel

    Joined:
    May 8, 2009
    Location:
    Brasília
    #3
    Not working for me. I tried 3 times and evreytime the install fails. Does anyone know how to do it with Disk Utility method?
     
  3. DeltaMac, Jul 8, 2016
    Last edited: Jul 8, 2016

    DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #4
    What is a "Disk Utility method"

    You do need to verify that the terminal command is typed correctly.
    Even better, copy and paste from a site that has the correct command, and one that you know works. I did try the following yesterday, and it works fine. Here is the working boot setup for your convenience. Do not type this yourself, it's really easy to misstype, miss extra spaces, etc. - just copy and paste the full command.

    You should note that this is for the Public beta, and not for the developer preview, as listed by the OP...

    You also need to be sure that the installer app is in the Applications folder, which is where the download from the App Store is normally placed.
    Name your external USB flash drive or partition as SierraInstaller, then copy and paste the following text in the terminal:
    Code:
    sudo /Applications/Install\ macOS\ Sierra\ Public\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/SierraInstaller --applicationpath /Applications/Install\ macOS\ Sierra\ Public\ Beta.app --nointeraction &&say Done
    Wait until "Done" is listed when the command is finished. It can take more than 30 minutes, so be patient.
     
  4. tedson macrumors regular

    Joined:
    Jul 17, 2002
    #5
    For the public beta use this instead:

    sudo /Applications/Install\ macOS\ Sierra\ Public\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Sierra --applicationpath /Applications/Install\ macOS\ Sierra\ Public\ Beta.app --nointeraction

    Where the name of your thumb drive is "Sierra"
     
  5. antmarobel macrumors 6502

    antmarobel

    Joined:
    May 8, 2009
    Location:
    Brasília
    #6
    That was exactly what I did tedson.
    http://osxdaily.com/2016/06/15/make-macos-sierra-beta-usb-boot-drive/. But, like I said, 3 fails (iMac Retina 27 late 2014 running Sierra already, but developer version, downloaded here and there you know.
     
  6. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #7
    The reason the command will fail is when the command is not correct or complete.
    That's why you need to copy-and-paste one that is correct.

    Do you always get the same error when it fails?
     
  7. antmarobel macrumors 6502

    antmarobel

    Joined:
    May 8, 2009
    Location:
    Brasília
    #8
    Haha problem solved DeltaMac. Thanks for trying to help!!! :)
     

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