Difference between revisions of "Startup key combinations for Macs"
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=== Intel-based Macs === |
=== Intel-based Macs === |
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Latest revision as of 06:07, 28 May 2013
Intel-based Macs
Press C during startup | Start up from a bootable CD or DVD, such as the Mac OS X Install disc that came with the computer. |
Press D during startup | Start up in Apple Hardware Test (AHT), if the Install DVD 1 is in the computer. |
Press Option-Command-P-R | Press until you hear two beeps. Reset NVRAM |
Press Option during startup | Starts into Startup Manager, where you can select a Mac OS X volume to start from. |
Press N | Make the the first bootable Network volume appear as well. |
Press Eject, F12, or hold the mouse (/trackpad) button | Ejects any removable media, such as an optical disc. |
Press N during startup | Attempt to start up from a compatible network server (NetBoot). |
Press T during startup | Start up in FireWire Target Disk mode. |
Press Shift during startup | Start up in Safe Boot mode and temporarily disable login items. |
Press Command-V during startup | Start up in Verbose mode. |
Press Command-S during startup | Start up in Single-User mode. |
Press Option-N during startup | Start from a NetBoot server using the default boot image. |
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 |
Force the internal hard drive to be the boot drive | D |
Boot from a specific SCSI ID #.(#=SCSI ID number) | CMD-OPT-SHIFT-DELETE-# |
Zap PRAM | CMD-OPT-P-R |
Boot into open Firmware | CMD-OPT-O-F |
Clear NV RAM. Similar to reset-all in open Firmware | CMD-OPT-N-V |
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 target drive mode | T |
Startup in OSX if OS9 and OXS in boot partition | X or CMD-X |
Attempt to boot from network server (Hold until Mac Logo appears) | N |
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 |
Reset Power Manager on PowerBooks | USE THIS LINK |
Put late model PowerBooks & Desktops to sleep | CMD-OPT-POWER |
Application Specific Keys
Startup key combos to reset the resolution on video boards:
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
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
Disable at Startup | ~ (Tilde) or ESC |
Apple System Installer
Change custom install to clean install | CMD-Shift-K |
Claris Emailer
Bypass specified startup connections | Hold CMD at launch |
Bring up rebuild options | Hold OPT at launch |