If there is not a FireWire port on the Windows host computer, you will need to purchase an adapter for the system. Target disk mode requires the host computer (systems accessing the Mac) to connect via a FireWire port (or Thunderbolt with newer Macs) to the target Mac. Therefore, target disk mode allows forensic examiners to access the internal Mac drive as an external hard drive from another Mac or a Windows PC. Removing hard drives instead from a Mac computer can be time consuming and result in damage to the system when not performed properly. That, and it's a cool party trick.Booting an Apple Macintosh in target disk mode allows computer forensic examiners to copy relevant files from the internal drive on a Mac computer. Just toggle target mode, issue a quick sudo shutdown -r now, and you can plug the offending machine into another computer and run your diagnostics. Often, you can ssh in from another machine (assuming you have remote login turned on) even when finder crashes and a machine appears to be frozen. Any value, even zero will work.Īnother potential use is for a disk you suspect is corrupt, or to unstick a frozen system. That's a actually a bit of a pain: habitual command line users expect that '1' will toggle a behavior, and '0' will untoggle it, but that isn't the case here. It only works for the next start-up, and can't be unset. That will set the machine to boot in target disk mode at it's next start-up. with the command line, it's "no muss, no fuss," just: I often hit 'reboot,' figure I have enough time to finish off a task on another machine, get caught up in the new task, and miss the window of opportunity to start the first machine in target disk mode, switch the startup disk, or whatever it was I wanted to reboot for. One, if you, like me, tend to be doing two, or three, or ten, things at once, holding down keys at startup can be a pain. Why would you want to do this? A couple of reasons. Today, it was that EFI Macs can be set from the command line to boot into FireWire target mode on their next reboot (Open Firmware macs can do it, too, but it's more complicated).
You really do learn something new every day.
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