Making a bootable macOS Catalina USB set up drive is an efficient option to generate a clear set up of macOS in your Mac. This hands-on tutorial will work with each the macOS Catalina developer beta, the macOS Catalina public beta, and the ultimate model of macOS Catalina scheduled to launch later this fall. Comply with our easy-to-use step-by-step video tutorial for the main points.
Earlier than starting you’ll want to amass a USB flash drive. Within the age of USB-C, it’s preferable that you just use a USB flash drive with a USB-C connection if doable.
You’ll need a USB drive with no less than 8GB of storage, however having extra storage isn't a nasty factor. I like to recommend this SanDisk Extremely Twin Drive USB Sort-C Flash Drive. It’s reasonably priced, and comes with each a USB-C connection and a standard USB-A connection. That is the drive that I’ve been utilizing and my expertise with it has been nice.
The drive is available in 16, 32, 64, 128, and 256GB storage varieties. In order for you a drive with additional storage, then it is sensible to go for a better tier, however in the event you simply plan on utilizing it as a USB installer, then 16GB needs to be loads.
Ensure that there’s nothing contained on the drive that you just want, as a result of this course of will fully delete the contents of the drive.
macOS Catalina USB installer video tutorial
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How one can create a bootable macOS Catalina 10.15 USB set up drive
Step 1: Obtain macOS Catalina. After Catalina 10.15 launches later this fall, you’ll be capable of obtain it immediately from the Mac App Retailer. Till then, you may obtain the macOS Catalina developer beta from Apple’s developer portal, or obtain the macOS Catalina public beta through Apple’s public beta web site.
Step 2: After efficiently downloading macOS Catalina, the installer will auto-launch. Shut the installer.
Step 3: Open Finder → Purposes and right-click on Set up macOS Catalina Beta and select Present Bundle Contents.
Step 4: Open Contents → Sources.
Step 5: Launch a Terminal window through Purposes → Utilities → Terminal.
Step 7: Drag createinstallmedia to the Terminal window from the Finder location famous in Step 4.
Step 9: Open Finder → Go → Go To Folder…
Step 10: Within the ‘Go to the folder’ field kind /Volumes and click on Go.
Step 11: Join your USB drive to your Mac, and it ought to seem within the Finder window.
Step 12: Drag the USB flash drive quantity into the Terminal window.
Step 13: Press Return on the keyboard to submit the complete command and enter your password when prompted.
Step 14: Sort a ‘y’ to proceed when prompted, and press return on the keyboard.
Step 15: The set up course of will begin by erasing the contents of your USB drive, and afterwards, copying the installer information to the drive. Your complete course of will take a couple of minutes to finish, so that you’ll must train persistence because the set up course of proceeds.
Having a USB installer out there could make putting in a recent copy of macOS even simpler. As an illustration, you may boot immediately from the USB drive by holding the Possibility (⌥) key in your Mac whereas booting with the drive linked.
You need to use this tutorial on both the developer beta, public beta, or the ultimate model of macOS Catalina that’s scheduled to launch later this fall. Take into account that on newer T2-enabled Macs, you could have to allow booting from exterior storage through macOS Restoration. We’ll handle that in a future tutorial.
Do you prefer to have a USB installer readily available, or do you like to stay to different strategies for reinstalling macOS? Pontificate within the feedback under along with your ideas, and don’t neglect to learn and watch our overview of the High macOS Catalina options.
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