MAC OS Short Keys

MAC OS short keys

F3 on Startup -no startup sound

C on Startup -force startup from CD

X on Startup -Force startup into OS X (on dualboot system, is not permanent)

T on Startup -FireWire Target Disk Mode

N during startup to boot from a networked computer that has a NetBoot volume. 

T during startup to boot in FireWire Target Disk Mode. This mode lets you use any Mac with a FireWire port as the source for your bootup system. 

B during startup. If the Apple Hardware Test DVD is in the optical drive, the Apple Hardware Test will begin. 

Shift during startup. This will boot your computer in Safe Mode. Safe Mode disables login items and non-essential kernel extensions from starting up. 

Command+ V on Startup -Verbose Startup

Command+ Option+ N+ V on Startup -Open Firmware prompt

Option during startup. The OS X startup manager will appear, allowing you to select a disk to boot from. 

Command + v during startup The command key is the key with the cloverleaf symbol. This shortcut will boot your Mac in Verbose Mode, with descriptive text sent to the display during the startup process. 

Command + s during startup. This shortcut will boot your Mac in Single-User Mode, a special mode used for troubleshooting and repairing complex hard drive issues. 

Hold down the mouse's primary key during startup. On a two- or three-button mouse, the primary key is usually the left button. This shortcut will eject a CD or DVD from the optical drive.

Command + Option + p + r during startup. This zaps the PRAM (Parameter RAM), an option that long-time Mac users will remember. Press and hold the key combination until you hear the second set of chimes. Zapping the PRAM returns it to its default configuration for display and video settings, time and date settings, speaker volume, and DVD region settings.