How to Create Bootable USB on Mac?

Macs are well-known for their user-friendliness when it comes to reinstalling macOS. You do not need to download installation files and drivers. All that is needed is to boot into recovery and install the operating system from there. Still, you might need a macOS bootable USB. It will come in handy when there is no Internet, or you want to speed up the process and avoid waiting for your Mac to download macOS. If you are new to Macbooks and do not know how to create a bootable USB with macOS, this article will tell you all you need.

How to Make Bootable USB on Mac?

Before you proceed with creating a bootable USB with macOS, there are few things you need to know.

  1. To create a macOS bootable USB, find a USB thumb drive with a minimum capacity of 16 GB.
  2. Back up important data on your drive, as Mac will format it before creating a bootable USB.
  3. You need a working Macbook to download your version of macOS and create a bootable USB.

Now here is how to create a bootable USB drive with macOS.

  1. On your Mac, open App Store and find the macOS version you need. To save you a few clicks, here are the links to the most recent versions of macOS: Big SurCatalinaMojave, and High Sierra. create bootable usb mac
  2. After downloading macOS, open Finder and go to the Applications folder to ensure you have the needed version of macOS in the list of apps.
  3. Grab your USB thumb drive and connect it to your Mac.
  4. Now press Cmd + Spacebar and type Terminal. You can also launch Terminal using any other way you like. bootable usb mac
  5. Next, enter the following command:
    sudo /Applications/Install\ macOS\ Big\ --volume /Volumes/USB

    Replace USB with the name of your drive.

  6. Note that the command above is for macOS Big Sur. Here are the commands for older macOS versions.

    sudo /Applications/Install\ macOS\ --volume /Volumes/USB


    sudo /Applications/Install\ macOS\ --volume /Volumes/USB

    High Sierra:

    sudo /Applications/Install\ macOS\ High\ --volume /Volumes/USB
  7. Press Return to execute a command. Your Mac will now ask you for a password. Enter it and press Return. Note that Terminal does not show symbols as you type, so do not think it is stuck and does not accept input.
  8. Press Y to confirm the creation of a macOS bootable USB.
  9. Wait for the system to finish creating a bootable USB.

Create macOS Bootable USB from Windows

Although the easiest way to create a bootable USB is to use a working Mac, you can also do the job from a Windows computer. What you need is a third-party utility called GibMacOS. It can connect to Apple’s servers and get the version you need directly from there. No need to download packages from some shady websites.

  1. Click this link to open GibMacOS’s official GitHub repository. Click Code > Download ZIP.
  2. Unpack files wherever it is convenient for you.
  3. Open the gibMacOS.bat file. make bootable usb mac windows 10
  4. Windows will open a new Command Prompt window and ask you to download Python. Press Y, then press Enter. make bootable usb mac
  5. Wait for Windows to download and install Python on your system.
  6. GibMacOS will now show you a list of available macOS versions to download. Note that on this step, the utility downloads the entire system. If you need just a recovery (for example, if you plan to use it in a Hackintosh build), press R, then press Enter. Tip: Restart the utility if it appears stuck after switching to the Recovery-only mode. create macos bootable usb
  7. Select the version you need. Press the corresponding number, then press Enter.
  8. Wait for the tool to download the macOS version you need. After finishing, the tool will show you a full path to the downloaded files. Copy that path and paste somewhere safe. big sur bootable usb
  9. Now it is time to create a bootable USB drive with macOS. To do this, plug in your USB drive and open the MakeInstall.bat file. catalina bootable usb
  10. Specify your drive, then wait for the tool to format it.
  11. Now paste the path to the previously downloaded files and press Enter.
  12. Wait for the app to create a bootable macOS USB drive.

Your bootable USB drive is not ready for use.

Cyril Kardashevsky

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