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1. #Make a bootable usb from iso mac terminal how to#
2. #Make a bootable usb from iso mac terminal install#
3. #Make a bootable usb from iso mac terminal upgrade#
4. #Make a bootable usb from iso mac terminal download#

It makes it easy to install macOS Big Sur on any compatible Mac, even if you haven’t downloaded the macOS Big Sur installer on that computer. Read and watch our tutorial about creating separate APFS volumes for macOS Big Sur for more details.Īlthough there are Internet Recovery options available for reinstalling macOS, I like the idea of keeping a macOS USB installer around.

#Make a bootable usb from iso mac terminal upgrade#

#Make a bootable usb from iso mac terminal how to#

Be sure to watch the full video for step-by-step details on how to utilize the USB installer drive once you’ve created it using the steps outlined above. The aforementioned steps walk you through the basic process of creating the installer, but the video walkthrough goes even more in depth.ĭetails on how to enable booting from external/removable media via Recovery Mode are explained, along with direction on secure boot settings that I found helpful.

macOS Big Sur install media created Using the macOS Big Sur USB installerĬreating the USB installer drive is easy, but actually using it can be challenging for users running Macs with Apple T2 Security chips. Afterward, the installer files will be copied to the drive. Because this process takes a few minutes to complete, you’ll need to exercise patience throughout the install process. Step 15: The install process will begin by purging the contents of the connected USB drive. Terminal may ask for access to files on the removable volume. Step 14: When prompted type a “y,” and press the Return key on the keyboard to submit. Step 13: Press the Return key on the keyboard to submit the full Terminal command and when prompted, enter your password. Step 12: Drag the USB flash drive volume into the Terminal window. Step 11: Connect a USB flash drive to your Mac it should appear in the Finder window.

Step 10: In the ‘ Go to the folder’ box type /Volumes and click the Go button. Step 8: Type -volume followed by a space. Step 7: Drag createinstallmedia to the Terminal window from the Resources folder noted in Step 4. Step 6: Type sudo followed by a space in the Terminal window. Step 5: Launch a new Terminal window by going to Applications → Utilities → Terminal. Right-click on Install macOS Big Sur → Show Package Contents. Close the macOS Big Sur installer once it’s fully downloaded Step 2: After downloading macOS Big Sur, the installer will automatically launch.

#Make a bootable usb from iso mac terminal download#

Until then, you can download the macOS Big Sur developer beta from Apple’s developer portal, or download the macOS Big Sur public beta via Apple’s public beta website. After Big Sur launches later this year, you’ll be able to download it directly from the Mac App Store. Subscribe to 9to5Mac on YouTube for more videos How to create a bootable macOS Big Sur USB install drive macOS Big Sur USB installer video tutorial Keep in mind that APFS-formatted drives cannot be used to create the macOS Big Sur USB installer. I recommend checking the contents, and then formatting the drive as macOS Extended Journaled (HFS+) via Disk Utility. Make sure that there’s nothing important that you need on the drive, because the full contents will be deleted. Not only is it super-affordable, but it comes both USB-A and USB-C connections, which allows the drive to connect to any Mac with ease. I still recommend this SanDisk Ultra Dual Drive USB Type-C Flash Drive. Of course, having more storage won’t hurt.

The second thing to keep in mind is that you’ll want to get a USB drive with at least16GB of storage space. Because every modern Mac supports USB-C, and some Macs only feature USB-C, I recommend purchasing a USB drive with a USB-C connector. Simply follow our step-by-step guide for the full details.īefore you begin, you’ll need to acquire a USB flash drive. This hands-on tutorial is valid for both the public and developer beta versions of macOS Big Sur, and will also work with the final version of Big Sur upon its release later this year. Making a bootable macOS Big Sur USB drive is a quick and clean way to install a fresh copy of macOS on your Mac.