Apple issues Thunderbolt Firmware Update 1.2 for Mac systems
Apple has released a firmware update for the Thunderbolt controllers in its Mac systems, which should address problems with using Target Disk Mode to mount a Mac's internal drive on another system as an external drive. Target Disk Mode is commonly used for troubleshooting hard-drive function, or when migrating data to a new Mac.
The update is a 1.22MB download that can be obtained by running the Software Update service in OS X (in the Apple menu), or by downloading it from Apple's Support Downloads Web site and applying it manually.
Though small, the update contains firmware … Read more