How to develop a bootable macOS Big Sur installer drive


Apple has a brand-new variation of macOS. It’s called Big Sur, and it’s variation 11.0. In this post I’ll discuss how you can develop a bootable macOS Big Sur setup drive. However prior to I offer guidelines on how to develop the drive, I’ll discuss the products you’ll require and how to get them.

These guidelines are for the formally launched variation of macOS Big Sur, not the public/developer beta. It was carried out on Macs running macOS Catalina, and once again on Huge Sur.

Macworld likewise has bootable-install-drive guidelines for:

Get an external drive and perhaps an adapter

The macOS Big Sur installer software application is over 12GB, so you require a USB external drive that can hold that much information. The drive can be a thumb drive, hard disk, or SSD.

thumb drive IDG

I utilized this thumb drive to develop a macOS Big Sur installer. You can utilize a thumb drive, external hard disk or SSD. The 32GB drive I utilized has both USB-C and USB-A (USB 2 speed, nevertheless, so it’s sluggish) adapters and is offered on Amazon for about $5.

If you have a 2015 or more recent Mac laptop computer that has USB-C/Thunderbolt 3 ports, you might require Apple’s $19USB to USB-C adapter This will enable you to link a storage gadget that utilizes a USB type-A adapter. If you do not have an external drive and you have a USB-C Mac laptop computer, you might purchase the SanDisk Ultra USB Type-C Flash Drive, which has a USB-C adapter. You can get model number SDCZ450-016G-G46

You require to eliminate the drive and format it to Mac OS Extended (Journaled). You can do this in the Mac’s Disk Energy app, which remains in the Applications/Utilities folder.

format boot drive macos big sur IDG

Format your boot drive utilizing Mac OS Extended (Journaled). My drive was at first formatted as APFS, and an alert appeared stating that the drive might not be utilized as formatted.

Get the macOS Big Sur installer software application

Huge Sur is offered through the Apple’sApp Store Click the Get button on the upper right, and the Software application Update system choice will open. Click the Download button. The download might take a while.

macos big sur app store Apple

However after the download is total and the installer launches, do not click the Continue button. Given up the installer by pushing Command-Q. Then go to your Applications folder and you ought to discover an “Install macOS Big Sur” app. You require to have the app there to make the bootable drive.

Utilize the Terminal to make a bootable macOS Big Sur installer drive

You’re going to utilize the Terminal to make your external drive a bootable macOS Big Sur installer. Do not fret if you have actually never ever utilized Terminal in the past, it’s simple. Here are the guidelines.



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