how to make mac os bootable usb

Creating a Bootable macOS USB: A Step-by-Step Guide #

Creating a bootable macOS USB drive can be a useful and essential tool for various purposes. Whether you need to perform a clean installation of macOS on your Mac or want to troubleshoot issues, having a bootable USB can save you time and effort. In this step-by-step guide, we will walk you through the process of creating a bootable macOS USB drive on your Mac.

Essential Tools and Instructions for Making a Mac OS Bootable USB #

Before you start creating a bootable macOS USB, there are a few things you will need:

  1. A USB flash drive: Make sure your USB drive has at least 16GB of storage space to accommodate the macOS installation files.

  2. A macOS installer: Head over to the App Store and download the macOS installer that you want to use. The installer will be saved in the Applications folder once the download is complete.

  3. Terminal: You will need to use the Terminal application on your Mac to create the bootable USB.

Once you have the necessary tools, follow these instructions to create a bootable macOS USB:

  1. Connect the USB drive to your Mac and ensure it is formatted as macOS Extended (Journaled) using the Disk Utility application.

  2. Open Terminal from the Applications > Utilities folder.

  3. In Terminal, type sudo /Applications/Install macOS [macOS version].app/Contents/Resources/createinstallmedia --volume /Volumes/[USB drive name] and press Enter. Replace [macOS version] with the specific version you want to install, and [USB drive name] with the name of your USB drive. Press Enter and then enter your administrator password when prompted.

  4. Terminal will begin creating the bootable USB. This process may take a while, so be patient.

  5. Once the process is complete, you will see a message indicating that the bootable USB has been created successfully.

Now you have a bootable macOS USB drive ready to be used. You can use it to install macOS on any compatible Mac or to troubleshoot and repair your system when needed. Remember to keep your USB drive in a safe place and label it properly for future reference.

Creating a bootable macOS USB is a straightforward process that can be very useful in various scenarios. Whether you need to perform a clean installation, troubleshoot issues, or simply have a backup option, having a bootable USB can come in handy. Follow the step-by-step guide above, ensure you have the necessary tools, and soon you will have a bootable macOS USB drive at your disposal.