After System Crash - Can't Boot to External FW Drive

Discussion in 'iMac' started by DonP, Apr 5, 2017.

  1. DonP macrumors newbie

    Joined:
    May 19, 2005
    Location:
    Socal
    #1
    On an early 2009 24" iMac, part of my backup strategy is weekly SuperDuper backups to an external Firewire drive. The FW drive has always been a bootup option if I hold the "option" key when booting and I could run from the FW drive no problem.

    Well yesterday I had a system crash and was unable to boot to the iMac internal HD, and the FW drive was not visible when booting. I suspected a hardware failure but surprising was able to restore from a Time Machine backup (14 hours). After restore from TM I was again able to boot to the internal HD and the FW drive was visible again.

    So obviously my FW backup strategy failed, but why would a system crash make the external FW drive unavailable? Is that expected behavior if I lose the internal HD in the future? Should I not plan to boot to the FW drive if the internal HD fails?
     
  2. nambuccaheadsau macrumors 65816

    nambuccaheadsau

    Joined:
    Oct 19, 2007
    Location:
    Nambucca Heads Australia
    #2
    Time will tell I guess.

    Maybe the internal drive is failing or something more serious like a logic board. Whilst it runs fingers crossed. Like me, itn is showing its age maybe.
     
  3. Fishrrman macrumors G5

    Fishrrman

    Joined:
    Feb 20, 2009
    #3
    After your weekly cloned backup, might be worth taking a few minutes to actually BOOT from the backup, just to test it out.
     
  4. DonP thread starter macrumors newbie

    Joined:
    May 19, 2005
    Location:
    Socal
    #4
    I was able to get the external FW drive to boot by having the drive spinning during the "option" key boot up sequence. So I'm up and running for now, with a 1T HD coming in from macsales. That will keep me going until new iMacs are available later this year. Thanks for the advice guys.
     

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