Note: Though you can also edit the VMX configuration file by hand, for those that are not familiar on how to reload the configuration file, it is best you use the UI. There are two recommended ways of performing this change using either the vSphere C# Client or vSphere Web Client and instructions are listed below.

To enable it for earlier guest OS versions, you'll need to power off your virtual machine and edit its configuration to add the following option:Īs mentioned by Darius, if you are running Mac OS X VM prior to 10.9 (Mavericks) you will need to add the following advanced VM setting by first powering it off and then add the above setting. The option is enabled by default for OS X 10.9 guests. We have a facility to generate a 'short' serial number which should be suitable for recent Apple software. Compared to most computers, Virtualbox virtual machines are very 'vanilla', meaning that they're very compatible with Mac OS X in the first place. I recall seeing this question get asked awhile back, but I could not immediately find the answer but thanks to Darius Davis (VMware Engineer) who provided the quick answer. Installing Mac OS X on a virtual machine is excellent practice for the real thing: installing Mac OS X on your actual computer. There was an interesting question that was asked the other day about changing the hardware serial number for an Apple Mac OS X guest as the generated serial number is not compatible with services such as Apple Caching Service or iMessage.