RAID0 Booting off the Wrong Drive

Discussion in 'Mac Basics and Help' started by lostime, Oct 13, 2009.

  1. lostime macrumors regular

    Joined:
    May 19, 2009
    #1
    I've searched the forums and google trying to find a solution without posting but maybe someone can help.

    Here's the situation. uMBP dual 500gb HD's (Optibay) in soft RAID0. Clean install but I guess the boot files were copied to the 2nd hard drive. When rebooting I have to hold option and select the 2nd hard drive for it to boot, if I let it go it will get to the gray screen and reboot endlessly. When I boot it from the 2nd hard drive it runs perfectly, fast and without problem. My question is how do I get it to boot from the second hard drive without me manually telling it to do so? Will a physical swap of the drives do it?

    "Startup Disk" under System preferences sees the array as one drive.
     
  2. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #2
    Try resetting the PRAM. Command+option+P+R on startup until you hear the startup chime a second time.
     
  3. lostime thread starter macrumors regular

    Joined:
    May 19, 2009
    #3
    That appears to have solved the problem, don't know why I didn't think of that but thanks.
     

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