Startup Keystrokes

Keys to Hold Down

Effect

C

Starts up from a CD

D

Starts up from the first partition

N

Starts up from network server

R

Resets the PowerBook screen

T

Puts the Mac into FireWire Target Disk mode

X

Starts up in Mac OS X (if 9 is on the same disk)

Option

Shows icons of all startup disks, so you can choose one for starting up.

Shift-Option--Delete

Starts up from external drive (or CD)

Option--P-R

Zaps the parameter RAM (PRAM). (Hold down until second chime.)

Option--O-F

Brings up Open Firmware screen.

-V

Shows Unix console messages during startup, logout, and shutdown

-S

Starts up in single user (Unix command-line) mode

Mouse down

Ejects a stuck CD or DVD

Shift

Just after powering up: Turns off kernel extensions (Safe Mode (Safe Boot))

Shift

Later, after logging in: Prevents Finder windows and startup items from opening. (They’ll return the next time you start up.)

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