Just checking: does this key combo work? (Please respond.)

Discussion in 'macOS' started by Sergeant Pepper, Feb 13, 2009.

  1. Sergeant Pepper macrumors member

    Jan 28, 2009
    I'm planning on using Carbon Copy Cloner to create a bootable backup of my system and placing that backup on an external hard drive.

    In case something goes wrong with my internal drive, will the key combo "Command + Option + Shift + Delete" (when pressed and held at startup) allow me to boot from my backup on the external drive?
  2. ihabime macrumors 6502

    Jan 12, 2005
    That will make it boot from the next available boot volume, whether it's the optical drive or external HD.

    You can also just hold down the option key to get to a menu where you can choose the boot volume by hand.

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