New iMac i7 will not boot into Single User Mode

Discussion in 'iMac' started by Bill P., Nov 14, 2009.

  1. macrumors regular

    Joined:
    Sep 24, 2007
    #1
    I hold down the Cmd & S keys (just like on my older iMac) and after a delay it boots up as usual. I just got this iMac yesterday (brand new).

    I experienced the monitor going bland for a second a few times along with some other vertical lines and wanted to run the fsck function as I have on my other macs. No go....

    Thoughts?

    Thanks,

    Bill
     
  2. macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #2
    Wireless keyboard?

    If so might have to plug one in a wired keyboard from the Mac in the closet.
     
  3. thread starter macrumors regular

    Joined:
    Sep 24, 2007
    #3
    Ah, good idea SB. Didn't have that problem on the old 20 incher....I'll give it a shot!

    Enjoy your Saturday!
     
  4. macrumors G5

    Sun Baked

    Joined:
    May 19, 2002
    #4
    Apple had that problem when the keyboards first came out, took awhile before they corrected it.

    Just figured that it would be typical for a new chipset and all the rewrites in the OS to cause the issue to pop up again.
     
  5. JDW
    macrumors member

    Joined:
    Jul 12, 2005
    Location:
    Japan
    #5
    Problem is not exclusive to wireless keyboards

    I have a wired Macally keyboard that I have been using with my March 2009 iMac 3.06GHz. I am also using the wired Mighty Mouse, connected to the keyboard. Never had any problems until today. I tried 2 times to boot into Single User Mode by holding down CMD-S. The OS just ignored my keyboard presses and booted back to the Finder.

    I then pulled the stock Apple keyboard (wired kind, without the numeric keypad). I then rebooted, quickly held down CMD-S, and to my surprised it worked. I got the command line. However, I then could not type anything. So I connected my Macally keyboard back (after having disconnected the Apple keyboard) and then I could type.

    Not sure what's going on here, but that is my experience.
     

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