Hard drive formatting

Discussion in 'Mac Pro' started by WayneStewart, Apr 3, 2017.

  1. WayneStewart macrumors newbie

    Joined:
    Oct 7, 2008
    Location:
    Vancouver, BC, Canada
    #1
    I had a couple of 256gb hard drives from water damaged 2013 Macbook Airs. I picked up a couple of PCIe cards to install them in my 3,1 Mac Pro. The cards weren’t supposed to be bootable but I thought 256gb high sped storage for under $10 each isn’t so bad. When I installed the first one it booted right up. I installed 10.6 and 10.11 on the drives. More recently I upgraded to a 5,1 Mac Pro. In the process I installed 10.12 on the drive I had 10.6 on. I didn’t see a problem and just formatted the drive and installed 10.6. Problem, the Mac Pro will no longer cold boot from that drive. I can reboot into it though. Not a huge problem but it does slow down my boot time considerably. Any ideas on how to get back the original drive formatting?
     
  2. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #2
    Surprised it boots at all. The earliest 2010 5,1 cMP came with OS 10.6.4. Anything earlier shouldn't boot. The earliest 2012 5,1 cMP came with OS 10.7.3.

    TinyGrab Screen Shot 4-3-17, 9.40.16 PM.png TinyGrab Screen Shot 4-3-17, 9.43.53 PM.png

    Lou
     
  3. WayneStewart thread starter macrumors newbie

    Joined:
    Oct 7, 2008
    Location:
    Vancouver, BC, Canada
    #3
    Sorry about that, I meant 10.6.8
    I tend to not bother with that last digit when talking about OSes.
    10.12 should also be 10.12.4
     

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