How to Create a Bootable Installer for Mac Catalina using Terminal

Are you an administrator looking to create a bootable installer for Mac Catalina? Look no further! In this article, we'll guide you through the process of creating a bootable installer using Terminal.

Prerequisites

Before you begin, make sure your Mac meets the system requirements for downloading and installing macOS Catalina. Your Mac must be running macOS High Sierra or later, the latest version of macOS Sierra, or the latest version of OS X El Capitan.

What You Need

To create a bootable installer, you'll need:

* A USB flash drive or other secondary volume with at least 14GB of available storage, formatted as Mac OS Extended

* Terminal software installed on your computer

Step-by-Step Instructions

1. Open Terminal: Located in the Utilities folder of your Applications folder.

2. Type or paste one of the following commands into Terminal, replacing 'MyVolume' with the name of your USB flash drive or other volume:

`sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume MyVolume`

`sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --destination MyVolume`

3. Press Return to execute the command.

4. When prompted, type Y to confirm that you want to erase the volume, then press Return again.

Tips and Considerations

* If your volume has a different name, replace 'MyVolume' with the actual name of your USB flash drive or other volume.

* Each command assumes that the installer is in your Applications folder. If it's located elsewhere, modify the command accordingly.

* Enterprise administrators should download from Apple, not a locally hosted update server.

Benefits of Creating a Bootable Installer

Creating a bootable installer can be useful if you want to:

* Install macOS on multiple computers without downloading the installer each time

* Install a compatible macOS when the Finder or macOS Recovery is unable to install one

While creating a bootable installer requires some technical expertise, it's a valuable tool for system administrators and experienced users looking to streamline their workflow.

By following these steps, you'll be able to create a bootable installer for Mac Catalina using Terminal. Remember to carefully follow the instructions and modify the commands as needed based on your specific situation.

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