- #Macos big sur installer how to
- #Macos big sur installer install
- #Macos big sur installer password
- #Macos big sur installer mac
Using a different USB Flash Drive or a different brand USB Flash Drive may solve the issue.The time it takes to install the update can vary depending on a bunch of factors. I have experienced issues with some flash drives where the process starts but is unable to complete or errors out. If you experience problems creating the macOS USB installer, try using a different USB Flash Drive.
#Macos big sur installer how to
If you need to download an older version of macOS, check out Apple’s support article - How to get old versions of macOS for download links. To create macOS USB installers for other versions of macOS, refer to Apple’s support article How to create a bootable installer for macOS for the appropriate Terminal commands. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions. If you can't start up from the bootable installer, make sure that Startup Security Utility is set to allow booting from external or removable media. Select the volume containing the bootable installer.
Release the Option key when you see a dark screen showing your bootable volumes. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting the Mac.
#Macos big sur installer mac
Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing When the macOS installer opens, follow the onscreen instructions. Select the volume containing the bootable installer, then click Continue. Turn on the Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes. The macOS version that came with the Mac is the earliest version it can use.Ī bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing. You just want to make sure the installer will boot into the macOS Big Sur installer.įollow the instructions below provided by Apple to boot using the USB Flash Drive on an Apple Silicon or Intel-based Mac: You can cancel out of the actual installation when prompted. You may want to test the USB Flash Drive to make sure the installer works properly. When the process completes, close Terminal. Terminal will display progress indicators along the way.
The USB Flash Drive will be formatted then macOS Big Sur will be copied onto the drive. When prompted, press “Y” to proceed with formatting the USB Flash Drive.
#Macos big sur installer password
You will need to enter your computer Admin password to proceed. Important Note: If you did not name your USB Flash Drive “MyVolume” then replace “MyVolume” in the Terminal command with the name of your USB Flash Drive. Sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume Copy and paste the following command into the Terminal window then press Return/Enter: In the Finder, select Go then Utilities then launch Terminal. If the macOS Big Sur installer launches after download, simply close out of the installer. Don’t move the installer file as the Terminal command will reference this file in this specific location. The installer should be saved to the Applications folder. Next, download macOS Big Sur (refer to How to get old versions of macOS for download link). Keep in mind all data on the USB Flash Drive will be erased so don’t use one with data that you want to keep. Apple suggests at least 14GB of available storage so get a USB Flash Drive with at least 16GB of storage. To create a macOS Big Sur bootable USB installer, you will need a USB Flash Drive.
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