If improvements are public but elsewhere, maybe someone can find the changeset(s) or other ticket(s) – thanks. I assume that relevant improvements to VirtualBox are currently: How to Back up Your Mac to an External Hard Drive With Time Machine Perform a Clean Install of OS X Mavericks on a Startup Drive Make a Bootable USB Installer. In this window, right click on the InstallMacOSX.dmg Mac disk image file, then select '7-Zip' > 'Open archive'. From a File Explorer window, start by navigating to your Downloads folder. Mountain Lion guest-related was similarly closed, presumably by a moderator. Use a 7-Zip File Manager application window to extract the OS X Install ESD folder and the InstallAssistant.icns file to your Downloads folder. Lion guest-related remains closed, not open to discussion.

Unless I'm missing something, none of the 4.x change logs mention anything like this. with fewer of the OSx86-oriented additions that I found necessary with some previous releases of VirtualBox.For me, Mountain Lion OS X 10.8.2 (build 12C60) runs as a guest with VirtualBox 4.2.4 r81684 on a 12C60 host, MacBookPro5,2 with 8 GB memory: See for instructions on how to make a Mac OS X Lion install disk or else acquire one of the Mac OS X Lion installation bootable flash drives from AppleCare.Īn unexpected and pleasant surprise. Message early in the boot process inside the virtual machine. Mac OS X Lion 10.7.5 is an improve of OS X model 10.7 which is also referred to as Lion. 'This version of Mac OS X is not supported on this platform!'

Which would seem to explicitly permit running Mac OS X 10.7 (Lion) non-server version as a guest under VirtualBox provided the VirtualBox host is also running Mac OS X.Īttempts to boot the 10.7 installer under VirtualBox 4.1.0 running on a Mac OS X system that is supported by Lion results in a you are granted a limited, non-transferable, non-exclusive license: (iii) to install, use and run up to two (2) additional copies or instances of the Apple Software within virtual operating system environments on each Mac Computer you own or control that is already running the Apple Software.' The Mac OS X 10.7 (Lion) installer software license agreement (the regular install, not the server) states:

Os x lion dmg