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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.
launchd has two main tasks. The first is to boot the system, and the second is to load and maintain services. Here is a simplified view of the Mac OS X Tiger system startup on a PowerPC Mac (on an Intel Mac, EFI replaces Open Firmware and boot.efi replaces BootX): Open Firmware activates, initializes the hardware, and then loads BootX.
A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system. It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face . [ 10 ]
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 ...
BootX is a graphical bootloader developed by Benjamin Herrenschmidt, which runs as an application or an extension to Mac OS 8 and 9 that allows Old World Apple computers to dualboot Linux. [ 1 ] [ 2 ]
The startx script is a front-end for xinit. By default, xinit and startx start an X display server pointing to a display device that is enumerated as :0 and then start an xterm on it. When the xterm terminates, xinit and startx kill the X display server. In general, xinit and startx can start an arbitrary server and run an arbitrary script.
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 ...
quik is a boot loader designed to start Linux on Apple Macintosh PowerPC systems based on the Old World ROM architecture. It was originally written by Paul Mackerras, and portions of its code were reused in all other Linux boot loaders for PowerPC, including the one known as BootX (not to be confused with the Mac OS X boot loader of the same name), which is dependent on the Mac OS.