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Most methods for dual-booting with Linux on Mac rely on manual disk partitioning, and the use of an EFI boot manager such as rEFInd. [20] Despite Macs transitioning to Thunderbolt 3 in 2016, Boot Camp does not currently support running Windows with a Thunderbolt 3-powered External GPU (eGPU) unit under macOS High Sierra, macOS Mojave or macOS ...
Mac OS X booting up in single-user mode. In PowerPC-based Macintoshes, the boot process starts with the activation of BootROM, the basic Macintosh ROM, which performs a Power On Self Test to test hardware essential to startup. [4] On the passing of this test, the startup chime is played and control of the computer is passed to OpenFirmware.
Target Disk Mode (sometimes referred to as TDM or Target Mode) is a boot mode unique to Macintosh computers. When a Mac that supports Target Disk Mode [1] is started with the 'T' key held down, its operating system does not boot. Instead, the Mac's firmware enables its drives to behave as a SCSI, FireWire, Thunderbolt, or USB-C external mass ...
The Startup File is designed for non-Mac OS systems that lack HFS or HFS Plus support. It is similar to the Boot Blocks of an HFS volume. The second-to-last sector contains the Alternate Volume Header, which is equivalent to the Alternate Master Directory Block of HFS. This is the second-to-last-sector for the disk, not the volume; if the disk ...
For iPhones, iPads and Apple silicon-based Macs, the boot process starts by running the device's boot ROM. On iPhones and iPads with A9 or earlier A-series processors, the boot ROM loads the Low-Level Bootloader ( LLB ), which is the stage 1 bootloader and loads iBoot; on Macs and devices with A10 or later processors, the boot ROM loads iBoot.
All Macs that supported macOS Sierra support macOS High Sierra. [8] iMac (Late 2009 or later) MacBook (Late 2009 or later) MacBook Air (Late 2010 or later) MacBook Pro (Mid 2010 or later) Mac Mini (Mid 2010 or later) iMac Pro (2017) Mac Pro (Mid 2010 or later) macOS High Sierra requires at least 2 GB of RAM and 20.12 GB of available disk space.
A boot disk is a removable digital data storage medium from which a computer can load and run an operating system or utility program. [1] The computer must have a built-in program which will load and execute a program from a boot disk meeting certain standards.
The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...