TDM (Target Disk Mode) a blank HDD/SDD?

Discussion in 'MacBook Pro' started by anonthymous, Dec 28, 2014.

  1. anonthymous macrumors newbie

    anonthymous

    Joined:
    Sep 28, 2014
    #1
    Hey Guys/(Experts),

    Farfetched question but I'd like know if it's possible to access TDM (via holding the "T" key upon startup) if I'm booting from a blank HDD/SDD?

    Absurd as it may sound, I want to clone my HDD into a SSD using the nifty TDM trick and a thunderbolt cable.

    Here's my thought process:

    I brought a new SSD and was thinking about placing that in a surrogate Macbook pro and afterwards, launching into TDM. From there, I'd connect the thunderbird cable to another Macbook pro (let's call this one the host) run CCC (Carbon Copy Cloner) and clone my hdd onto the surrogate MBP to the blank SSD.

    Before undertaking this, I'd made sure the new SSD I brought is formatted accordingly and both Macbook Pros are compatible.

    Would this (technically speaking) work? Hopefully I explained it in a way that makes some sense ...
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Technically speaking it should work. The target Mac would appear as a blank external hard drive.
     
  3. rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #3
    it is my understanding that target disk mode will work even if the hard disk has been completely erased.

    i am not about to test this though!!!

    target disk mode is in the mac's firmware
     
  4. anonthymous thread starter macrumors newbie

    anonthymous

    Joined:
    Sep 28, 2014
    #4
    Just verified this and it is possible! Upon starting up the blank SSD I installed in my Macbook pro, I was able to access TDM (Target Disk Mode) pressing "T".
     
  5. Altemose macrumors G3

    Altemose

    Joined:
    Mar 26, 2013
    Location:
    Elkton, Maryland
    #5
    Target Disk Mode turns a Mac into a power hungry disk enclosure with a FireWire/Thunderbolt port interface. Any drives inside will appear regardless of formatting.
     
  6. rigormortis macrumors 68000

    rigormortis

    Joined:
    Jun 11, 2009
    #6
    i used target disk mode once to install os x from a working cd drive on another mac by holding down the C key!!!! it made a very expensive external cd drive!!
     

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