Intermittent Boot Feeze Using Option key

Discussion in 'Mac Pro' started by englishman, Aug 24, 2011.

  1. macrumors 6502a

    englishman

    Joined:
    Nov 6, 2006
    #1
    On using the option (alt) key a list of potential bootable volumes comes up.

    This has always worked well for me on all sorts of Macs.

    Lately on 2 different Mac Pros after choosing a boot volume the system just hangs.

    I get round it by cold shutdown and restart which then allows boot from my option key choice - although once even this didn't work.

    What could be causing this.
     
  2. macrumors member

    Joined:
    Apr 22, 2009
    #2
    I also had this problem. Solved by installing the bootloader rEFIT...
     
  3. thread starter macrumors 6502a

    englishman

    Joined:
    Nov 6, 2006
    #3
    Thanks I might try it. May allow me to boot Windows USB?
     
  4. macrumors 6502

    Joined:
    Dec 7, 2010
  5. thread starter macrumors 6502a

    englishman

    Joined:
    Nov 6, 2006
    #5
    That will work but I want to decide what to boot at boot time not after, that's clunky.
     
  6. macrumors member

    Joined:
    Aug 25, 2009
    #6
    Same

    i have the Same issue!! drives me nuts most of the time holding the power button fixes it for the next time it boots but a few times it would keep freezing at a gray screen. I would solve by putting in the install disk and holding C to force boot from disk and changing the target disk my OSX drive.

    BTW 2010 4 core mac pro
     
  7. thread starter macrumors 6502a

    englishman

    Joined:
    Nov 6, 2006
    #7
    Me too 2010 2.8.
     
  8. macrumors 6502

    Joined:
    Dec 7, 2010
    #8
    If it works...*shrug*:D (I got used to it, because I get no boot screen!LOL)
     
  9. thread starter macrumors 6502a

    englishman

    Joined:
    Nov 6, 2006
    #9
    The weird thing is its always worked before with many many Macs of all types. Its only the last few months with a couple of 2010 MP that its become unreliable. I just want to pin it down to a batch of HW, or Snow/Lion or ???
     

Share This Page