Mac OS X 各式開機按鍵組合
When troubleshooting, performing maintenance, or otherwise starting up your Mac OSX computer in an abnormal fashion, there are a few keyboard shortcuts that you may or may not know about that can help you. Below is a list of them with an explanation of what they do:
X = Force Mac OS X startup
Option = Brings up a screen with startup volume choices (slow process, may take a while)
Option+Command+Shift+Delete = Bypass primary startup volume and seek a different startup volume (such as a CD or external disk)
C = Start up from a CD that has a system folder
N = Attempt to start up from a compatible network server (NetBoot)
T = Start up in FireWire Target Disk mode (very handy for plugging your Mac into another as an external hard drive)
Shift = start up in Safe Boot mode and temporarily disable login items and non-essential kernel extension files (Mac OS X 10.2 and later)
Command+V = Start up in Verbose mode.
Command+S = Start up in Single-User mode
Command+Option+p+r = Zap PRAM. Hold down until second chime.
Command+Option+n+v = Clear NV RAM. Similar to reset-all in Open Firmware.
Command+Option+o+f = Boot into open firmware
Hold mouse button down = Force eject a CD/DVD
X = Force Mac OS X startup
Option = Brings up a screen with startup volume choices (slow process, may take a while)
Option+Command+Shift+Delete = Bypass primary startup volume and seek a different startup volume (such as a CD or external disk)
C = Start up from a CD that has a system folder
N = Attempt to start up from a compatible network server (NetBoot)
T = Start up in FireWire Target Disk mode (very handy for plugging your Mac into another as an external hard drive)
Shift = start up in Safe Boot mode and temporarily disable login items and non-essential kernel extension files (Mac OS X 10.2 and later)
Command+V = Start up in Verbose mode.
Command+S = Start up in Single-User mode
Command+Option+p+r = Zap PRAM. Hold down until second chime.
Command+Option+n+v = Clear NV RAM. Similar to reset-all in Open Firmware.
Command+Option+o+f = Boot into open firmware
Hold mouse button down = Force eject a CD/DVD
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