Create a macOS Golden Gate USB Install Drive

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Creating a macOS Golden Gate USB installer is a practical solution for upgrading multiple Macs or performing clean installations without relying on internet downloads. This guide outlines the steps to create a bootable USB drive for macOS Golden Gate.

Choosing the Right USB Drive

Select a blank USB drive with a minimum of 16GB storage capacity. Drives with both USB-C and USB-A connectors offer greater flexibility, accommodating various Mac models. Ensure the drive is empty, as the process will erase all existing data.

Downloading the macOS Golden Gate Installer

To obtain the macOS Golden Gate installer:

  1. Open Terminal.
  2. Enter the command: softwareupdate --list-full-installers to view available macOS versions.
  3. Identify the desired version number from the list.
  4. Execute: softwareupdate --fetch-full-installer --full-installer-version [version number], replacing [version number] with the chosen version. This downloads the installer to the Applications folder.

Note: For beta versions, enable Beta Updates in System Settings under General → Software Update before running the above commands.

Creating the USB Installer

Follow these steps to create the USB installer:

  1. In Finder, navigate to Applications, right-click on ‘Install macOS Golden Gate’, and select ‘Show Package Contents’.
  2. Open the ‘Contents’ folder, then ‘Resources’.
  3. Connect the USB drive to your Mac.
  4. Open Terminal and type: sudo followed by a space.
  5. Drag the ‘createinstallmedia’ file from the Resources folder into the Terminal window.
  6. Type: --volume followed by a space.
  7. In Finder, select ‘Go’ → ‘Go to Folder…’, type /Volumes, and press Return.
  8. Drag the USB drive volume into the Terminal window.
  9. Press Return, enter your administrator password when prompted, and confirm by typing ‘y’ and pressing Return.

The process will erase the USB drive and copy the installer files. This may take several minutes. Once completed, eject the USB drive safely.

Having a macOS Golden Gate USB installer is beneficial for installing the operating system on multiple Macs without repeated downloads, especially in environments with limited internet bandwidth. It also serves as a reliable recovery tool in case of system issues.

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