Select your external drive in the sidebar, click “Restore” in the menu, and then select your primary drive as the “Restore From” option. It is designed to be used from recovery mode to restore your hard drive after a crash.īut, if you choose your external drive as the restore target, you can reverse that action and copy files from your primary drive to the backup. The “Restore” button in Disk Utility will copy the files from a backup to your main drive. This is where we get to that hidden feature we mentioned. You’ll be greeted with a list of all your volumes, including your internal hard drive (probably called OS X or Macintosh HD) and your external hard drive. Launch Disk Utility from Spotlight (Command + Space) or from the Utilities folder in your applications. Directly from Disk Utility, no third party applications required So even though this is not recommended for everyday use, it is still possible. They’re still much slower than the solid-state drives (SSDs) found in most new Macs. Whether you want to keep files in sync between a desktop and laptop, expand your storage, or have a bootable backup of your system, there’s a hidden feature in Disk Utility that makes it easy.īooting from an external drive will generally be slower, even with newer Thunderbolt and USB-C drives. There are many reasons for wanting to boot from an external drive.
#CLONE YOUR BOOT DRIVE MAC HOW TO#
How to Make a Bootable Clone of Your Mac’s Hard Drive
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