Tag Archives: boot

Ubuntu: Recover Lost Password

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Mac Startup Key Combinations

  • http://support.apple.com/en-us/HT201255
  • Press C during startup – Start up from a bootable CD, DVD, or USB thumb drive (such as OS X install media).
  • Press D during startup – Start up in Apple Hardware Test (AHT).
  • Press Option-Command-P-R until you hear startup sound a second time. Reset NVRAM
  • Press Option during startup – Start up in Startup Manager, where you can select an OS X volume or network volume to start from.
  • Press Eject, F12, or hold the mouse or 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 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.
  • Press Command-R during startup – Start from the OS X Recovery System1