I keep having to restart no matter what I do

Discussion in 'Mac Basics and Help' started by J3r., Sep 5, 2008.

  1. J3r. macrumors newbie

    Sep 5, 2008
    I have a 20-inch iMac and it keeps telling me I need to restart. What I have tried is holding down C while I try to boot the install cd and also when I try to go to single user mode I get the message to the ilk "System OS not set" so that must be the problem. Also, it doesn't let me type anything in single user mode. And that may be because I have a wireless keyboard. Please tell me the steps to trouble shoot so I don't have to keep coming back to here and set my backup computer over and over again.


  2. scienide09 macrumors 65816


    May 5, 2007
    When the computer tells you to shut down, is it because you're having kernel panics? Do you see this image?


    It would help us to know your system specs and OS version, along with anything you've done to the hardware (eg. RAM upgrade) or any specialized software installed in/on the system.
  3. J3r. thread starter macrumors newbie

    Sep 5, 2008
    Yes, it's a Kernel Panic like the picture you showed. It's an Intel Core Duo 20-inch iMac with Superdrive. Upgraded to 4GB. The owner sold it to me on eBay used with everything including the original box. What happened right before these Kernel Panics is that I had left it on and the program I was running was called "Spring Cleaning." I think I was doing something that said "erase free space"....something like that. Hmm ... maybe I have too much memory used up? Thing is, though I can't start it up to erase anything. Also, the owner had Tiger on it, but he upgraded to Leopard. I don't think he sent the Leopard install disk, though. I hope I can recover Leopard on it.


  4. J3r. thread starter macrumors newbie

    Sep 5, 2008
    What is my next step, anyone?

    I have waited awhile...... nobody knows what my next step should be?

  5. richard.mac macrumors 603


    Feb 2, 2007
    51.50024, -0.12662
    you said you upgraded the RAM? it could be faulty. run a hardware test by starting up install disc 1 while holding "D".
  6. n1blink182fan2 macrumors newbie

    Sep 2, 2008
    dude, same problem. whenever i try to install my leopard on my g4 it just keeps putting me back to that screen. i called apple, and there wasn't anything they could do over the phone, you basically have to take it in they said. then worst part was, is you have to pay the 50 dollars for them to do something, and even after paying that there is no guarentee that they will fix it. does anyone know of something to do before i take it in?
  7. Batt macrumors 65816


    Dec 17, 2007
    Syracuse, NY
    First, check "Logs" in the library > panic.log. see what it says is causing the panics.
  8. mrdinh macrumors regular

    Sep 7, 2007
    not sure...but i had the same error message and did a clean reinstall of leopard...and the message went a way...try that?

    i have a mac pro desktop...not sure if this applies
  9. imbtween macrumors newbie

    Sep 8, 2008
    Try this, it worked for me on a machine in a very similar (though not identical) situation:

    sudo touch /System/Library/Extensions
    sudo touch /System/Library/Extensions.kextcache
    sudo touch /System/Library/Extensions.mkext
  10. Consultant macrumors G5


    Jun 27, 2007
  11. J3r. thread starter macrumors newbie

    Sep 5, 2008

    O.k. I tried the holding down D thing, but I was holding control at the same time, would that make a diffy? Also, I notice that sometimes when I try to start it up, I get a beeping noise like a tone. Is there anything I can try with the Apple Care Protection plan DVD that the owner included in the package? What is my next step?

    P.s. using this Imac (my backup) everything is really slow, I was also wondering if maybe there is something wrong with this one. I did upgrade the memory on it, too.

    Thanks 4 the help,

  12. imbtween macrumors newbie

    Sep 8, 2008
    will it boot in "safe mode" with a wired keyboard?

    it makes sense that you can't do anything with a wireless one because the drivers won't necessarily load...
  13. logana macrumors 65816


    Feb 4, 2006
    Is it actually a Core Duo iMac or a Core 2 Duo ?

    A Core Duo machine will not normally start up with 2GB RAM in it - is this the problem ?
  14. J3r. thread starter macrumors newbie

    Sep 5, 2008
    It just says "Core Duo" with no 2 on the box. That can't be the problem, because I have had it awhile, and it started up fine until a few days ago. I define "awhile" as a few months (2 or 3). Could be some software I installed idk. I just know that I miss my baby and I want it back!


  15. J3r. thread starter macrumors newbie

    Sep 5, 2008
    Actually, that's not a problem, I have already removed discs from the drive with the wireless keyboard eject button. And yes, it has gone into single user mode, but I was unable to do anything else because it wouldn't let me type anything in.
  16. KingYaba macrumors 68040


    Aug 7, 2005
    Up the irons
    Did you run the hardware test?
  17. J3r. thread starter macrumors newbie

    Sep 5, 2008
    Holding down D didn't let me do anything (a.k.a. same problem). Does it make a difference if I did it while holding the control button? Should I start in single user mode and post the results? Because that's the only info I would be able to get as a diagnosis of itself.

  18. Les Kern macrumors 68040

    Les Kern

    Apr 26, 2002
    Software error, and I'll bet a billion dollars Spring Cleaning hosed you. That's a product nobody should use, ever. It's a tool designed to do something not even needed any more.
    Doubtful this is recoverable. Very doubtful.
    Start up holding shift, and just for fun type in
    fsck -fy
    and see what it says. If it says something referring to 0,0 or 0,X sectors, that's a boot block error and prepare to reload the OS from scratch.
    Pretty much anything you discover at this point is going to point to a complete re-install.
  19. J3r. thread starter macrumors newbie

    Sep 5, 2008
    Thank U every1

    I did a complete reinstall holding down the C key with the install disc. I suspect that it might not be worth it to get Leopard again.

    Thanks again,

  20. WOZhipper macrumors newbie


    Nov 2, 2007
    Take the ram out put the old in.

    the problem goes away...its the new RAM

    easy as that.

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