Apple
Boot Key Combos:
Bypass startup drive and boot from external (or CD) |
CMD-OPT-SHIFT-DELETE |
Boot from CD (Most late model Apples) |
C |
Boot from a specific SCSI ID #.(#=SCSI ID number) |
CMD-OPT-SHIFT-DELETE-# |
Zap PRAM |
CMD-OPT-P-R |
Disable Extensions |
SHIFT |
Rebuild Desktop |
CMD-OPT |
Close finder windows.(hold just before finder starts) |
OPT |
Boot with Virtual Memory off |
CMD |
Trigger extension manager at boot-up |
SPACE |
Force Quadra av machines to use TV as a monitor |
CMD-OPT-T-V |
Boot from ROM (Mac Classic only) |
CMD-OPT-X-O |
Force PowerBooks to reset the screen |
R |
Force an AV monitor to be recognized as one |
CMD-OPT-A-V |
Eject Boot Floppy |
Hold Down Mouse Button |
Select volume to start from |
OPT |
Start in Firewire drive mode |
T |
Startup in OSX if OS9 and OXS in boot partition |
X or CMD-X |
Hold down until the 2nd chime, will boot into 9? |
CMD-OPT |
OSX: Watch the status of the system load |
CMD-V |
OSX: Enter single-user mode (shell-level mode) |
CMD-S |
After startup:
Bring up dialogue for shutdown/sleep/restart |
POWER |
Eject a Floppy Disk |
CMD-SHIFT-1 or(2) or (0) |
Force current app to quit |
CMD-OPT-ESC |
Unconditionally reboot |
CTRL-CMD-POWER |
Fast Shutdown |
CTRL-CMD-OPT-POWER |
Goto the debugger (if MacsBug is installed) |
CMD-POWER |
Put late model PowerBooks & Desktops to sleep |
CMD-OPT-POWER |
Application Specific Keys:
Startup key combos to reset the resolution on video boards: |
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SuperMac (at least some models)press&hold |
OPT |
Imagine 128 Card (reset resolution) |
N |
RasterOps (at least some models)press&hold |
CMD-OPT-SHIFT |
Radius (Use cable sense pins to set resolution) |
U |
Radius (Cycle through available resolutions) |
T |
Conflict Catcher: |
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Pause Boot |
P |
Launch CC at Startup |
SPACE or CAPS LOCK |
Skip remaining extensions |
CMD-PERIOD |
Reboot cleanly while loading extensions |
CMD-R |
RAM Doubler: |
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Disable at Startup |
~ (Tilde) or ESC |
Apple System Installer: |
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Change custom install to clean install |
CMD-Shift-K |
Claris Emailer: |
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Bypass specified startup connections |
Hold CMD at launch |
Bring up rebuild options |
Hold OPT at launch |
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Command-Option-P-R |
Zap PRAM (double boot) |
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R |
Force PowerBook to reset the screen |
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Command-Option-A-V |
Force an AV monitor to be recognized as one |
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Command-Option-T-V |
Force Quadra AV to use TV as a monitor |
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Command-Option-X-O |
Boot from ROM (Mac Classic only) |
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Mouse button |
Eject Floppy, then boot from SCSI |
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Command-Option-Shift-Delete |
Bypass startup drive (boot from the first bootable device other than the normal boot device). |
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Command-Option-Shift-Delete-# |
Boot from a specific SCSI ID, where # is 0 through 6 |
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C |
Boot from internal CD-ROM (Most late model Macs) |
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N |
Boot from network (iMac and later models) |
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D |
Boot from the internal disk if the default boot device has been set to something else |
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Z |
Boot from an internal Zip drive |
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O-F |
Access Open Firmware (on G3 and later models) |
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T |
Boot into FireWire Target Disk mode (on certain FireWire-equipped PowerBook) |
Upon appearance of the happy face, let go of any boot keys you may have needed, then immediately press any keys you need to control ...
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Command |
Boot with Virtual Memory off |
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Shift |
Disable all Extensions and Control Panels. Release Shift when the message "Extensions disabled" appears in the welcome box. |
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Space |
Open extension manager before loading Extensions or Control Panels. Release the Space bar when the Extensions Manager displays its screen. |
Holding the Shift key early in the boot sequence disables all Extensions and Control Panels. Individual Extensions and Control Panels may disable themselves upon seeing the Shift key later in the boot sequence, but the timing for this is difficult to achieve! Upon loading, an Extension or Control Panel is supposed to display its icon in the "icon parade." If the icon is displayed at boot time, but the Extension or Control Panel disables because the Shift key is held or some error condition is detected, it is conventional for a red X to be drawn over its icon.
Immediately upon the appearance of the (blank) menu bar, press any keys you need to control ...
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Command-Option |
Rebuild Desktop |
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Option |
Start without opening finder windows |
Lots of Finder shortcuts are documented in the online Finder Help. (p.s. Don't delete that file: Certain Apple installers refuse to function unless that file is in its proper place.)
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Command-Shift-1 (or 2, or 0) |
Eject a Floppy Disk [FKEYs] |
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Command-Option-ESC |
Force current app to quit. |
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Command-POWER |
Invoke the debugger (if MacsBug is installed) - G to return to interrupted code |
If you have a Power key, it is at the top of your keyboard, at the center or on the right hand side; it carries an incused triangle symbol.
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POWER |
Present Restart, Sleep, Shutdown dialog - key R for Restart, S for Sleep, ESC for cancel, or Return for Shutdown. |
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Control-Command-Option-POWER |
Fast Shutdown |
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Command-Option-POWER |
Put late model PowerBooks & Desktops to sleep |
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Control-Command-POWER |
Unconditional, forced reboot (the "three-finger salute") |