The Mac Admin's Blog

Few special key commands while start up. This can be of great use while troubleshooting start up issues in Mac. Action/Explanation Keystroke Eject CD on boot Hold Mouse button down immediately after powering on OS X Safe boot Press Shift during startup Start up in FireWire Target Disk mode Press T during startup Startup from a CD Press C during startup Bypass primary startup volume and seek a different startup volume Press Cmd-Opt-Shift-Delete during startup Choose Startup disk before booting Press Option during startup Start up in Verbose mode Press Cmd-V during startup Start up in Single-User mode (command line) Press Cmd-S during startup Force Powerbook screen reset Press R during startup Force OS X startup Press X during startup

For MAC OSX (Only OSX will be supported in this post) If you need to start your Mac machine in Safe Mode (Safe Boot), please follow these steps: 1. Make sure you machine is turned off/shut down. 2. Now press the power button. 3. As soon as you hear the startup tone, press the Shift key. The Shift key should be held in a fraction of seconds, but make sure, you don't do it before the tone. 4. Leave the Shift key when you see the start up screen (gray Apple icon) and the progress indicator (in Mac it is a colored spinning wheel ). While startup in Mac OS X 10.4 or newer version, you will see "Safe Boot" on the first login window, (which will appear even if you do a normal login automatically. During startup in Mac OS X 10.2 through 10.3.9, you will see "Safe Boot" on the Mac OS X startup screen. If you don't want to start you Mac in SafeMode, just restart the machine normally, without holding any keys during startup. If you are new to Mac then please go to th