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Q: My G4 Powerbook will not shutdown?

I'm running 10.5.8 on a PowerBook G4 15"

 

  Model Identifier:      PowerBook5,2

  Processor Name:    PowerPC G4  (1.1)

  Processor Speed:    1.25 GHz

  Number Of CPUs:    1

  L2 Cache :                512 KB

  Memory:                   2 GB

  Bus Speed:              167 MHz

  Boot ROM Version:   4.7.1f1

 

Starts up great. Operates GREAT. When I Shut Down, everything c;oses,
files on desktop go away, Dock goes awat, leaving me wit. just background photo, then nothing. No shut down.

*** - Over?

Anyway, Any thoughts / suggestions would be GREATLY appreciated.

 

USMCSarge

Posted on Jul 26, 2011 12:36 AM

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Q: My G4 Powerbook will not shutdown?

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  • by old comm guy,

    old comm guy old comm guy Jul 26, 2011 1:59 PM in response to USMCSarge
    Level 4 (2,244 points)
    Jul 26, 2011 1:59 PM in response to USMCSarge

    Semper Fi, Mac.  (Somehow, that seemed appropriate here.)

     

    Anyway, what you can try to get maybe a hint is to do a verbose boot by holding down the cmd-V combination when you power up.  This switches part of the boot process from the gray Apple screen to a black Unix terminal screen where a lot of text output is sprayed out reporting what is going on.  This you should be able to ignore.  On the backside, when you command a shutdown, you should eventually get to the same kind of screen, which will probably show some process refusing to be killed or the machine waiting forever for something to happen.

     

    You can make this the default boot mode by opening a Terminal session using /Utilities/Terminal application, then typing the following command at the prompt:

     

    sudo   nvram   boot-args="-v"  <enter>

     

    Terminal will ask for your password to authenticate you are doing something with admin privileges, and you should be good to go.

     

    If you later want to undo this, you can do that in terminal with the following command:

     

    sudo   nvram   boot-args=""  <enter>

     

    This also will ask for the password before proceeding.

     

    Anyway, I don't know what specifically will show up on shutdown, but you may get a valuable clue.