Posted on September 12, by CleverFiles Team. YouTube Software. Starting with macOS This is also true for macOS One of the workarounds is to make the boot disk work as an external or secondary disk to another Mac. This method is called Target Disk Mode, it is fast, easy and absolutely safe. If you see a closed lock at the lower left, click it and type your password to make the Target Disk Mode button available.
Confirm by clicking Restart. Alternatively, press and hold the T button immediately after pressing the power button to turn on your Mac, or immediately after your Mac begins to restart. Keep holding it until it boots in Target Disk Mode. After your local Mac starts up in Target Disk Mode, it appears as a disk icon on the desktop of the other Mac. Proceed with data recovery normally.
Once done, eject the disk by dragging its icon to the Trash the Trash icon changes to an Eject icon. To exit Target Disk Mode, press and hold the power button on the Mac you used as a disk. Connect any adapters you need for older machines. Only by manually encrypting the files on your hard drive can you truly keep your files safe. Wait for the drive to decrypt, then it should show up like any other external drive. Use Finder to browse files, copy to and from the drive, and then safely eject your drive.
On your target Mac, press the power button to power down the machine. You can now restart this machine as normal, if you want. Now that you know how to use target disk mode, you should familiarize yourself with some of the applications for this boot mode. This is most useful for large files like videos, media libraries, disk images, and so on. A wired transfer via Thunderbolt is much faster than a similar wireless transfer using the notoriously buggy AirDrop AirDrop Not Working? We can step you through all of your available options.
What Is Target Disk Mode?
Connect the target and host, boot the target into Target Disk Mode as normal, then on the host launch Migration Assistant under Utilities. Operating system failures happen to the best of us. What if your Mac runs out of space mid-install? And how do you fix the problem when you can't access your computer normally any more?
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What if you have a MacBook with a broken screen or dodgy keyboard? This will restore access to your damaged Mac so you can recover files, wipe the hard drive, and do anything else you need to do. Connect the two machines as normal, and launch your broken target Mac in Target Disk Mode.
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Now reboot the host machine and enter Startup Manager by holding Option as your host Mac boots. This is because Target Disk Mode will only work if your drive is operational. Here's a troubleshooting guide to help get your external hard drive or flash drive working again.
Read More , be prepared for some issues. Damage to Thunderbolt and FireWire ports will also make this tricky, as well as logic board issues that might prevent normal operation of these ports.