How to create a bootable macOS Big Sur installer drive

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Apple has a brand new model of macOS. It’s referred to as Huge Sur, and it’s model 11.0. On this article I’ll go over how one can create a bootable macOS Huge Sur set up drive. However earlier than I give directions on find out how to create the drive, I’ll go over the gadgets you’ll want and find out how to get them.

These directions are for the formally launched model of macOS Huge Sur, not the general public/developer beta. It was carried out on Macs working macOS Catalina, and once more on Huge Sur.

Macworld additionally has bootable-install-drive directions for:

Get an exterior drive and possibly an adapter

The macOS Huge Sur installer software program is over 12GB, so that you want a USB exterior drive that may maintain that a lot information. The drive could be a thumb drive, onerous drive, or SSD.

thumb drive IDG

I used this thumb drive to create a macOS Huge Sur installer. You should use a thumb drive, exterior onerous drive or SSD. The 32GB drive I used has each USB-C and USB-A (USB 2 pace, nevertheless, so it’s gradual) connectors and is on the market on Amazon for about $5.

When you’ve got a 2015 or newer Mac laptop computer that has USB-C/Thunderbolt 3 ports, you could want Apple’s $19 USB to USB-C adapter. This may let you join a storage gadget that makes use of a USB type-A connector. In case you don’t have an exterior drive and you’ve got a USB-C Mac laptop computer, you can purchase the SanDisk Extremely USB Sort-C Flash Drive, which has a USB-C connector. You may get mannequin quantity SDCZ450-016G-G46.

You should erase the drive and format it to Mac OS Prolonged (Journaled). You are able to do this within the Mac’s Disk Utility app, which is within the Functions/Utilities folder. 

format boot drive macos big sur IDG

Format your boot drive utilizing Mac OS Prolonged (Journaled). My drive was initially formatted as APFS, and an alert appeared saying that the drive couldn’t be used as formatted. 

Get the macOS Huge Sur installer software program

Huge Sur is on the market by the Apple’s App Retailer. Click on on the Get button on the higher proper, and the Software program Replace system choice will open. Click on the Obtain button. The obtain might take some time.

macos big sur app store Apple

However after the obtain is full and the installer launches, do not click on the Proceed button. Stop the installer by urgent Command-Q. Then go to your Functions folder and it’s best to discover an “Set up macOS Huge Sur” app. You should have the app there to make the bootable drive.

Use the Terminal to make a bootable macOS Huge Sur installer drive

You’re going to make use of the Terminal to make your exterior drive a bootable macOS Huge Sur installer. Don’t fear for those who’ve by no means used Terminal earlier than, it’s simple. Listed below are the directions.


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