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Startup key combinations for Intel Macs

March 25th, 2007 at 2:04

OsXDaily posted 11 Startup keys for Intel Macs

Howto boot from CD or DVD:
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.

Howto run Apple Hardware Test:
Press D during startup
Start up in Apple Hardware Test (AHT), if the Install DVD 1 is in the computer.

Howto Reset NVRAM:
Press Option-Command-P-R until you hear two beeps.
Reset NVRAM

Howto access Startup Manager:
Press Option during startup
Starts into Startup Manager, where you can select a Mac OS X volume to start from. Note: Press N to make the the first bootable Network volume appear as well.

Howto eject devices:
Press Eject, F12, or hold the mouse (/trackpad) button Ejects any removable media, such as an optical disc.

Howto Netboot:
Press N during startup Attempt to start up from a compatible network server (NetBoot).

Howto startup in FireWire Target Mode:
Press T during startup
Start up in FireWire Target Disk mode.

Howto boot in safe mode:
Press Shift during startup
Start up in Safe Boot mode and temporarily disable login items.

Howto verbose boot
Press Command-V during startup
Start up in Verbose mode.

Howto boot Single-User mode:
Press Command-S during startup
Start up in Single-User mode.

Howto netboot:
Press Option-N during startup Start from a NetBoot server using the default boot image.

Thx for that summary.

Source: OSXDaily.com

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3 Responses to “Startup key combinations for Intel Macs”

  1. Howto reset an OSX-Admin Password - V.2 | macfidelity Says:

    [...] Press Shift during startup (more about startup key-combos here) [...]

  2. zacus Says:

    im not sure y but even after pressing C during startup nothing happen..it only goes to my mac os. where if i hold down option key i can get to start up with window on my imac
    i wanna format my mac as i have prob starting up mac.
    pls help

    ReplyReply
  3. fidel Says:

    @zacus

    hold ALT while booting. As a result all bootable devices should be displayed – this includes the Mac OS X Install CD if inserted into the drive.

    Best Regards
    fidel

    ReplyReply

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