Not only in installing the new OS, but creating this USB drive will also help in backup restore and formatting the Mac. Also, you can use the same USB drive and install the new macOS on multiple MacBooks. The new operating system will only work on the compatible MacBooks and not just any Mac. This guide will require the user to have the know-how of the command line to manually set up the bootable drive. So, let’s dive into the guide and see how to do it.
Create macOS Big Sur Beta Bootable Installation USB Drive
Before proceeding, I have mentioned some guidelines that you must go through and follow. Also, you need some devices and applications that are crucial to this setup guide.
- A USB Drive (try to get a 32 GB variant)
- macOS Big Sur installer app [make sure to save it to the Applications folder]
- A MacBook compatible with the Big Sur OS
- Active internet connectivity
- Most importantly take a backup of your device data to be on the safer side
Creating the macOS Big Sur Beta Bootable Drive
- Press Command key + spacebar initiate Spotlight
- Type Terminal and hit Enter to open it
- Now, connect the USB drive to your Mac and ensure to rename it into something convenient like NEWDRIVE
- If you are creating the drive for the public beta of macOS Big Sur, then give the following command
sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/NEWDRIVE --nointeraction
- It will take some time to create and when it finishes you will see a pop-up saying the process has been finished.
Now, this USB drive can be connected to any other Mac compatible with the Big Sur OS and you can install the new OS from that.
Booting Up A Mac with the Installation USB Drive
- Connect the USB Drive that you created above to any MacBook
- Now, reboot the Mac
- As the bootup screen shows up the press the Option key
- Keep it pressed until the boot menu shows up
- select the one that says NEWDRIVE as per the bootable drive name we created
- The Mac will now boot with the USB drive
In case the Mac Doesn’t Boot
This may happen on certain Macs running the latest OS.
- Press Command + R to reboot to recovery
- from the Utility menu select Startup Security Utility
- Then select Allow Booting from External Media
So, that’s it. If you want to create a bootable USB drive for installing the macOS Big Sur Beta on any MacBook, then do follow this guide. Feel free to share the guide with your friends as well.