Unable to boot from DVD drive

Discussion in 'Mac Apps and Mac App Store' started by bigboy99, Nov 17, 2008.

  1. bigboy99 macrumors 6502

    Nov 12, 2005
    Sarasota, FL
    Disk Warrior 4.1 and Drive Genius 2.1 will not boot my MacBook Pro with the usual C key held down. My Leopard install disks works. Is there another method to boot from the DVD with third party software?
  2. SHADO macrumors 6502a


    Aug 14, 2008
    I had the same problem as you. My solution was to back up everything on my external and then use another mac (15" Powerbook running Leopard, but it could be any other mac). I connected the 2 via FireWire and restarted my Macbook in Target Disk Mode (hold down T on startup). Then I installed DiskWarrior and Drive Genius 2 on the Powerbook and de-fragged my HD. I would try that because it worked for me with no problems. Good Luck.
  3. bigboy99 thread starter macrumors 6502

    Nov 12, 2005
    Sarasota, FL
    Apparently Apple changed the MacBook, MacBook Pro, and MacBook Air startup code on machines made after 10/14, and have not released the software kit to third party developers such as Alsoft (Disk Warrior) and Prosoft (Drive Genius.) Meanwhile these companies keep offering upgrades to previous Leopard products that do not work on the new machines.

    Your solution will work in an emergency, though.

  4. sickmacdoc macrumors 68020


    Jun 14, 2008
    New Hampshire
    Yes, that is true to an extent-- the missing part of the puzzle up until recently has been the ability to boot from the CD/DVDs in question. The programs on the disks are capable of being used with the latest OS versions (via Target Mode to another machine or booting from a secondary bootable backup drive as I do), but booting from a disk to use them that way has been missing for basically all 2008 Mac introductions.

    Disk Warrior recently changed to a DVD and carries the disk revision number r810 which finally allows it to boot the early 2008 introductions but not the latest MB and MBP introductions- and I just got an email today that the newest TechTool disk has been updated to boot all Macs introduced in 2008, so progress is being made (and I am sure that Drive Genius and DW will be updated again shortly since Micromat got the info on booting the latest Macs).
  5. bigboy99 thread starter macrumors 6502

    Nov 12, 2005
    Sarasota, FL
    From Alsoft...

    The currently shipping DiskWarrior 4.1.1 (DVD revision 810) will not
    start up a MacBook Pro (Late 2008) model.

    To start up the recently released MacBook Pro (Late 2008) you will need
    a DiskWarrior disc with a more current operating system.

    When Apple releases new hardware, a newer version of the operating
    system is required to support all of the hardware features that have
    been added.

    We are awaiting the delivery from Apple of an updated operating system
    to create an updated DiskWarrior disc.

    In the interim, you might utilize the following configuration to use a
    current DiskWarrior 4.1.1 disc.

    (1) Alternate Startup Disk: With a FireWire or USB 2.0 drive, you can
    install Mac OS X (the version which shipped with your computer or
    higher) on that drive and then start up the computer from the external
    hard drive. Install DiskWarrior into the external drive's "Utilities"
    folder, (which is inside the "Applications" folder) and run DiskWarrior
    from there.

    (2) Target Disk Mode: Connect two Macs with a FireWire cable where the
    one is the "host" and the other is a "target". The host Mac should be
    running OS X (10.4.x or higher). In this scenario, the target Mac is
    the new MacBook Pro that cannot be started from the DiskWarrior CD.
    Start by shutting down the target Mac. Then turn it on while holding
    down the "T" key. The target Mac's drive will appear as a usable drive
    on the host Mac. Run DiskWarrior from the host Mac and rebuild the
    target Mac's disk.

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