OSX Startup keys

Some useful startup keys for Mac:

  • C : Force boot from the CD-Rom drive
  • D : Force boot from the internal hard drive
  • Option : System picker show all bootable disks
  • Space Bar : Apple extension manager
  • Command-S : Boots Mac OS X into “Single User” mode
  • Command-V : Boots Mac OS X into “Verbose Mode”
  • Command-Option-P-R : Erases PRAM if held down immediately after startup tone
  • Command-Option-N-V : Erases NVRAM

More at MacOSX Things and OtherWorldComputing

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