How to Create a Bootable USB Installer for macOS Big Sur Beta

Are you ready to install macOS Big Sur beta on your Mac system? Creating a bootable USB installer is a crucial step in the process. In this article, we'll guide you through the steps to create a bootable USB installer for macOS Big Sur beta.

Step 1: Plug in the Bootable USB Drive

Plugin the bootable USB flash drive into the USB port on your Mac system. Make sure it's inserted correctly before proceeding further.

Step 2: Boot Your Mac System with the Power Button

Press and hold the Power button on your Mac until the Startup Option displaying bootable volumes appears on the screen. This will allow you to access the bootable volumes on your system.

Step 3: Choose the Bootable USB Drive

Choose the bootable USB drive from the list of available bootable volumes and click the 'Continue' option. Follow the on-screen instructions in the macOS installer window to proceed with the installation process.

Step 4: Format the USB Drive

Formatting the USB drive is a crucial step in creating a bootable USB installer for macOS Big Sur beta. Type the Admin password and hit the 'Enter/Return' key to format the USB drive. After formatting, you will be prompted to copy the macOS installer file onto the USB drive.

Step 5: Copy the macOS Installer File

Once you have completed the formatting process, type the following command in the Terminal panel: `sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --nointeraction`. This will start copying the macOS installer file onto your USB drive.

Step 6: Wait for the Copying Process to Complete

The copying process may take some time, so be patient and wait for it to complete. Once the process is finished, you will see a message indicating that the copying process is complete.

Step 7: Erase the Volume

You will see a message appear asking if you want to erase the volume at `/Volume/Untitled`. Press Y and press Enter to confirm the erasure of the volume.

Step 8: Your Bootable USB Drive is Ready

Once the copying process is complete, close the Terminal panel. Your bootable USB drive is now ready to use. You can use it to install macOS Big Sur beta on any Mac system.

What's Next?

Before using your bootable USB drive to install macOS Big Sur beta, make sure you are using a Mac with an Apple Silicon chip or an Intel processor. If you have an M1-based Mac, follow the additional steps below:

For Macs with The M1 Apple Silicon Chip: How to Boot the Mac Using the Created Bootable USB Drive?

Before booting your Mac system with a bootable USB drive, check whether you are using a Mac with an Apple Silicon chip or an Intel processor. If you have an M1-based Mac, follow these additional steps:

* Plug in the bootable USB drive into the USB port on your Mac.

* Restart your Mac and hold down the Power button until the Startup Options window appears.

* Select the bootable USB drive as the startup disk.

Creating a bootable USB installer for macOS Big Sur beta is a straightforward process. By following these steps, you can create a bootable USB installer that you can use to install macOS on any Mac system.

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