Most of my VirtualBox virtual machines are automatically created using Vagrant scripts. So when I came across a repository a few months ago that offers an easy and automatic Mac OS X installation shell script, my curiosity was piqued.

The installation script of https://github.com/myspaghetti/macos-virtualbox lives up to its promises: everything goes smoothly and automatically.

I just had to set the virtual machine resolution and the processor type (depending on my physical machine) using the following commands:

VBoxManage setextradata "macOS" "VBoxInternal2/EfiGraphicsResolution" "2880x1800"
VBoxManage modifyvm "macOS" --cpu-profile "Intel Core i7-5600U"

I found additional information at the following addresses:

• The procedure to use the script
• How to change the VirtualBox virtual machine characteristics from the command line

It is now possible to simply create a Mac OS X virtual machine with VirtualBox. The question that remains is “what for?”. Indeed, beyond the tour de force, the interest remains limited: graphic and CPU performance will remain low, the method is not immune to a change by Apple in the protection or the installation procedure of its system and in the medium term the X86 architecture will be abandoned. Perhaps the script is useful for developers to create automated test environments?