With the Mac OS X Mavericks Developer Preview now available, many will want to run it in a Virtual Machine, so they can run in along side of their production Mac OS X and other OSes running in VMs. And avoid the time and hassles of having to mess around with resizing and adding disk partitions or drives, and having to use Boot Camp to dual boot into Mavericks to avoid losing your production Mac OS X installation.
While I did find some did find some instructions for installing Mavericks in a VM under Parallels Desktop 8 for Mac I can’t find one for VMware Fusion 5. So I made my own.
How To Install Mac OS X Mavericks Developer Preview in VMware Fusion
- Install Mac OS X Mountain Lion in a VM. You can do this using the Mountain Lion Installer download from the Mac App Store. Just select the installer app as the disk image when creating a new VM. Fusion will be able to install the OS right out of that Install OS X Mountain Lion.app file.
- Once you have Mountain Lion running in a VM, shut it down and make a backup of the VM file.
- Install the Mavericks OS from inside the Mountain Lion OS running in the VM.
Notes on Getting the OS Installers from the Mac App Store
Save the .app files
Re-download from the Mac App Store
- Go to Purchases in the Mac App Store app.
- Click the Download button.
- If the Mac App Store won’t let you re-download the installer, here’s a quick tip I got from an older MacWorld article – The last time I tried this in 2012, it used to work. But I am unable to test it now, so I’m not certain if it still works in the latest software versions.
– Quit the Mac App Store app, relaunch it, and then Option+click the Purchases tab in the toolbar; that should show the Download button next to Mountain Lion in the Purchases list.