VBoxManage setextradata “ VM Name” VBoxInternal2/EfiGraphicsResolution 2560×1440 I chose 2560×1440 because that is the resolution my 27″ monitors use: Also change the resolution at the end to whatever resolution you would like, as this command sets the resolution for your MacOS virtual machine. Now enter the below command, replacing “VM Name” with whatever you named your virtual machine when you created it in Virtualbox. Open Command Prompt in Windows and browse to the directory where Virtualbox is installed on your computer (the below command uses the default installation directory where it will most likely be located unless you specifically chose somewhere when installing Virtualbox): Once this has been done, close Virtualbox and and any open virtual machines. Now go to the Storage section in the Settings, and add a new virtual hard disk (click the disk icon with the + near the bottom of the window and browse to the virtual disk you downloaded earlier):

Then go to the “System” section and change the CPUs allocated to 2 (or more if you want, but it won’t make much difference): Once the new VM is created, select it and click “Settings”. Make sure to select “Do not add a virtual hard disk”, as we will do this later: Now open Virtualbox and create a new virtual machine with the “Type” set to “Mac OS X”, the version set to whichever version of MacOS you are going to use and however much RAM you want to allocate. Once you have downloaded the virtual disk, extract it to whichever directory you would like it to be located: Any other version of MacOS can be used, however the performance will be worse. For this tutorial we will be using MacOS Yosemite 10.10, as it is the latest version where Beam Sync can be disabled to make performance somewhat ok. The first thing to do is obtain a MacOS virtual disk. This tutorial assumes you have Virtualbox installed and virtualisation enabled in your computer’s BIOS. If this is what you’re looking for read on. However, having a MacOS VM can be useful for things like troubleshooting issues or testing stuff out. So if you need to use MacOS to actually do work this is not the path for you - build a Hackintosh or buy a Mac. This means performance will basically be garbage. Therefore there are problems when trying to virtualise MacOS, the most compromising of which being hardware acceleration for graphics will not work in a MacOS VM (unless you’re going to build a Hackintosh with very specific parts, but that defeats the purpose of building a VM). But first, it’s important to understand this: MacOS is not designed to be virtualised, because Apple does not want it running on anything other than Apple hardware. In this article we will go through setting up a Virtualbox VM from scratch running MacOS.

Run mac os on virtualbox