Hardware Reference
In-Depth Information
Restart Mac Pro in Target Disk Mode
You can use target disk mode to help troubleshoot Mac Pro. If you are having trouble starting
Mac Pro, a problem with the main hard drive might be the culprit. You normally troubleshot
such a problem by booting either to the Recovery HD or to a Recovery drive, as described in
the section “
Boot to the Recovery HD
.” If you cannot access the Recovery HD and you do
not have a Recovery drive, then you can still troubleshoot the problem by connecting Mac
Pro to another Mac using a Thunderbolt cable and booting Mac Pro in target disk mode.
Restart Mac Pro in Target Disk Mode
Connect Mac Pro and the other Mac using a Thunderbolt cable.
Restart Mac Pro.
During the restart, press and hold
until you see the Thunderbolt icon.
Mac Pro is now in target disk mode.
Restart the other Mac.
