![]() When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal doesn't show any characters as you type. When prompted, type your administrator password. If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. ![]() Type or paste one of the commands below into Terminal, then press Return to enter the command. Open Terminal, which is in the Utilities folder of your Applications folder. Enterprise administrators: download from Apple, not a locally hosted update server.ĭownload a macOS installer using the App Store or your browser Use Terminal to create the bootable installer Your Mac must also be compatible with the macOS that you're downloading. To download a full installer, your Mac must be using macOS High Sierra or later, the latest version of macOS Sierra, or the latest version of OS X El Capitan. What you need to create a bootable installerĪ USB flash drive or other secondary volume with at least 14GB of available storage, formatted as Mac OS Extended You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful if you want to install macOS on multiple computers without downloading the installer each time, or you're unable to install a compatible macOS from the Finder or macOS Recovery. But it's macOS, in a virtual machine, and that's not bad! Be sure to check out our guide to VirtualBox's advanced features to get the most out of your machine, too.These advanced steps are primarily for system administrators and other experienced users who are familiar with entering commands in Terminal. This isn't going to be perfect, which is to be expected from an entirely unsupported setup. ![]() Also, remember that audio won't work, nor will things like FaceTime or iMessage, which require a real Mac. ![]() Related: 10 VirtualBox Tricks and Advanced Features You Should Know Aboutįrom now on, you can open VirtualBox for any Mac-related testing you want to do. Again, you'll see a lot of errors pop up during boot, but they're fine ignore them. Start up VirtualBox, load up your virtual machine, and it should boot to your preferred resolution! In the second command, you need to replace the N with a number from one to five, depending on what resolution you want: VBoxManage setextradata "High Sierra" "VBoxInternal2/EfiGopMode" N Borrow a friend's Mac for an hour if you don't have one, and you should be fine-everything beyond step one of this tutorial can be done on your Windows PC. You could, we suppose, obtain a High Sierra ISO by other means, but we don't recommend it. NOTE: In order to get this working, you will need access to a real Mac in order to download High Sierra. Related: Beginner Geek: How to Create and Use Virtual Machines To make things a little easier for people, we've combined methods from a few different forum threads into a single, step-by-step tutorial, complete with screenshots. Other than that, though, this is macOS High Sierra, running smoothly in VirtualBox. The only thing not working is sound, which for some reason is highly distorted or nonexistent. Some of the folks at the InsanelyMac forums have figured out a process that works. We haven't yet tested it ourselves, but we've heard good things. It promises to take you through the process of installing and setting up a macOS virtual machine. If you want to install a newer version of macOS in VirtualBox, check out this script on GitHub. The instructions here apply to older versions of macOS.
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