$ hdiutil detach /Volumes/OS\ X\ Base\ System/
$ hdiutil unmount /Volumes/OS\ X\ Install\ ESD/ $ cp /Volumes/OS\ X\ Install\ ESD/BaseSystem.* /Volumes/OS\ X\ Base\ System/ Preview.app/Contents/SharedSupport/InstallESD.dmg $ hdiutil mount /Applications/Install\ OS\ X\ 10.10\ Developer\ $ hdiutil convert yosemite.dmg -format UDSP -o yosemite.sparseimage If you have the Public Beta, the installer app is named differently.$ iesd -i /Applications/Install\ OS\ X\ 10.10\ Developer\ Preview.app -o yosemite.dmg -t BaseSystem" Open Terminal, and run the following commands:.
#Mac os yosemite for virtual box install#
I will say now, that the performance of OS X Yosemite in VirtualBox is poor. Not having a handy spare Mac on which to install the Yosemite Developer Beta, I decided it was time to try my first OS X Virtual Machine.įrom what I can tell, most Mac SysAdmins use VMWare Fusion for their VMs.