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Methods to boot macOS Large Sur from the installer drive – Information
This one tutorial The train exhibits you the best technique to create a bootable macOS Large Sur flash drive so you’ll be able to improve a Mac that doesn’t have a DVD drive.
Methods to create a bootable macOS Large Sur set up drive
Get an exterior drive and possibly an adapter
The macOS Large Sur installer software program is over 12GB, so that you want an exterior USB drive that may retailer that a lot information. The drive is usually a thumb drive, onerous drive, or SSD. When you’ve got a Mac 2015 or newer laptop computer that has USB-C/Thunderbolt 3 ports, you could want Apple’s $19 USB to USB-C adapter. This can assist you to join a storage gadget that makes use of a USB Kind-A connector.
For those who don’t have an exterior drive and you’ve got a Mac USB-C laptop computer, you should buy the SanDisk Extremely USB Kind-C Flash Drive, which has a USB-C connector. You will get mannequin quantity SDCZ450-016G-G46. It is advisable to erase the drive and format it for Mac OS Prolonged (Journaled). You are able to do this in your Mac’s Disk Utility utility, which is within the Functions/Utilities folder.
Get the macOS Large Sur installer software program
Large Sur is obtainable via Apple’s App Retailer. Click on Get button within the upper-right nook, and the Software program Replace system desire will open. Click on on Obtain button. The obtain might take some time. However after the obtain completes and the installer begins, don’t click on on the Proceed button button. Exit the installer by urgent Command-Q. Then go to the Functions folder and you must discover an “Set up macOS Large Sur” utility. It is advisable to have the app there to make the drive bootable.
Use Terminal to create a bootable macOS Large Sur installer drive
You’ll use Terminal to make your exterior drive a bootable macOS Large Sur installer. Don’t fear in case you’ve by no means used Terminal earlier than, it’s straightforward. Listed here are the directions.
Join the exterior drive to your Mac. In these directions, I exploit Untitled because the title of the exterior drive. In case your unit has one other title, you will want to alter Untitled to your unit title.
Launch Terminal (/Functions/Utilities/Terminal.app)
Return to Terminal and paste the copied code into the immediate. Bear in mind to alter Untitled to your unit title. Press Return.
The terminal might ask to your password. Kind it and press Return.
Terminal will warn you that your exterior drive must be erased. To proceed, sort Y on the immediate and press Return.
An alert might seem asking Terminal for permission to entry a detachable drive. Click on OK.
You will notice that Terminal erases your drive and copies the installer file to your drive. This can take a couple of minutes.
After copying, Terminal is prepared. You need to see Terminal show a message that your drive is able to use.
Replace installer drive
This part will not be obligatory so that you can run. It is not going to seem if it isn’t wanted.
Join your exterior drive to your Mac.
Intel Mac: restart/energy up up your Mac and press and maintain the choice key in your keyboard through the startup course of.
Apple Silicon Mac: Reset/Energy Up up Mac and press and maintain Mac energy button through the boot course of.
After just a few moments, your Mac ought to convey up the Startup Supervisor, which is able to present you the obtainable boot drives. Click on on the exterior drive and press Return.
An alert seems that claims, “A software program replace is required to make use of this boot disk.” click on on replace button. You will want an Web connection (click on the Wi-Fi icon within the menu bar and choose a connection), and the replace course of takes a number of minutes. After the updater runs, your Mac will restart. You continue to have one thing else to do earlier than booting the exterior drive.
Change safety settings
Mac could be configured as much as not assist you to use an exterior boot disk. You will want to alter this. Right here’s how. It is advisable to boot into restoration mode. Restart and on Intel Macs, maintain Command-R through the boot course of. One M1 Macs, press and maintain the facility button.
The Mac ought to begin up with a “macOS Utilities” window. Click on on the Utilities menu and choose Startup Safety Utility. An “Authentication Required” window seems. It is advisable to authenticate as an administrator. This implies you want the username and password for a Mac account designated as an administrator. When you might have this data, click on Enter macOS password and enter your username and password.
A number of choices will seem. For our functions right here, see the Allowed Boot Media part and verify the button to “Enable booting from exterior or detachable media”. Then shut the window. We’re nearly there! Now it’s time to lastly boot from the exterior drive.
Methods to boot from installer drive
With the exterior drive linked.
Intel Mac: restart/energy up up your Mac and press and maintain the choice key in your keyboard through the startup course of.
Apple Silicon Mac: Reset/Energy Up up Mac and press and maintain Mac energy button through the boot course of.
The Boot Supervisor ought to seem. Choose your exterior drive.
The Mac will boot into restoration mode. You need to see a window with 4 choices. If you wish to set up Large Sur and go away the information intact, choose Set up macOS Large Sur. If you wish to begin over and erase the information, it’s worthwhile to enter Disk Utility to reformat the inner drive first after which set up macOS Large Sur. Make your choice and click on Proceed.
Remaining be aware
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