To restart your Mac in Target Disk Mode when it is already on, you can use the System Settings application. This allows another Mac to access your computer's drive as if it were an external hard drive.
Here's the process based on the provided information:
Steps to Restart in Target Disk Mode (When Mac is On)
Follow these simple steps directly from within macOS:
- If your computer is currently on, navigate to the Apple menu
- Choose System Settings. (Note: You may need to scroll down in the sidebar).
- In the sidebar of System Settings, click on General.
- On the right side of the window, click Startup Disk.
- Click the button that says Restart in Target Disk Mode.
Once you click this button, your computer will initiate the restart process and enter Target Disk Mode.
What Happens Next?
When your computer has successfully started up in Target Disk Mode and is connected to another Mac via a compatible cable (like Thunderbolt or FireWire), a disk icon representing your computer's internal drive will appear on the desktop of the other computer. You can then access and transfer files between the two machines.
