Can Panther recognise a External HD formatted on Tiger (Intel)

Discussion in 'Mac Basics and Help' started by majorp, Sep 22, 2006.

  1. majorp macrumors 6502

    Joined:
    Nov 28, 2005
    Location:
    UK !!!
    #1
    I formatted my external on my macbook before i returned it. I partitioned and formatted as guid?! <<:confused:

    When i try to read it on my brothers powerbook i cannot seem to mount it. It says it is non mountable and gives me the option to initialize.

    Any ideas

    Thanks

    edit, by the way im not trying to boot, just read.
     
  2. coal macrumors regular

    coal

    Joined:
    Oct 22, 2005
    Location:
    Portland, OR
    #2
    Drives formatted with the new Intel Mac partitioning scheme are apparently unbootable by PPC Macs.

    Read more at this link.

    edit: I see that you're not trying to boot. I understand, though, that drives formatted under GPT are only readable by Intel/PPC Macs running Tiger. (Though I'm not positive.)
     
  3. majorp thread starter macrumors 6502

    Joined:
    Nov 28, 2005
    Location:
    UK !!!
    #3
    ok, thanks. i hope this is true otherwise i might have lost all my data!
     
  4. majorp thread starter macrumors 6502

    Joined:
    Nov 28, 2005
    Location:
    UK !!!
    #4
    You were spot on with that link! cheers!

     
  5. Nermal Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    New Zealand
    #5
    There are three partitioning systems.

    GPT: For the boot drive on an Intel system.
    APM: For external drives, or boot drives on PowerPC systems.
    MBR: For Windows compatibility.

    Your external drive should use APM unless you're trying to boot from it.
     

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