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Currently only available in Mac OS X 10.6 "Snow Leopard", Mac OS X 10.7 "Lion", and OS X 10.8 "Mountain Lion" Added Support to Install ISO files from USB; 5.0.5033: March 14, 2013 Support for Windows 8 and Windows 8 Pro (64-bit only) Boot Camp support for Macs with a 3 TB hard drive; Drops support for 32-bit Windows 7
Macs made from 1984 to 1998 used Old World ROM as the boot loader for all Macs produced around that time period. From 1998 up until the PowerPC to Intel transition, New World ROM was used for all Macs starting with the first iMac and later expanding to the first iBook and the Blue and White Power Mac G3.
Those Macintoshes include a ROM chip varying in sizes up to 4 megabytes (MB), [8] which contains both the computer code to boot the computer and to run the Mac OS operating system. The ROM-resident portion of the Mac OS is the Macintosh Toolbox and the boot-ROM part of that ROM was retroactively named Old World ROM upon the release of the New ...
On Apple Mac computers using Intel x86-64 processor architecture, the EFI system partition is initially left blank and unused for booting into macOS. [13] [14]However, the EFI system partition is used as a staging area for firmware updates [15] and for the Microsoft Windows bootloader for Mac computers configured to boot into a Windows partition using Boot Camp.
In June 2006, an updated MacBook Pro was released for the 10.4.7 Mac OS X update for non-Apple computers using the 10.4.4 kernel. Up to the release of the 10.4.8 update, all OSx86 patches used the 10.4.4 kernel with the rest of the operating system at version 10.4.8.
Since the Old World ROM usually boots to Toolbox, most OSs have to be installed using a boot loader from inside Mac OS (BootX is commonly used for Linux installations). 68K-based Macs and NuBus Power Macs must have Mac OS installed to load another OS (even A/UX, which was an Apple product), usually with virtual memory turned off.
Virtual PC 4 requires Mac OS 8.5 or later on a G3 or G4 processor, but running Windows Me, Windows 2000 or Red Hat Linux requires Mac OS 9.0 or later. Virtual PC 5 requires Mac OS 9.1 or newer or Mac OS X 10.1 or later. For USB support, Mac OS X is recommended. To run Virtual PC 5 in Mac OS X, a 400 MHz or faster processor is required.
rEFIt on a MacBook. Free and open-source software portal; rEFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs.It can be used to boot multiple operating systems, including triple-boot setups with software such as Apple's Boot Camp Assistant.