iBook Start-up problem: Please help

Discussion in 'PowerPC Macs' started by alexf, Mar 15, 2006.

  1. macrumors 6502a

    alexf

    Joined:
    Apr 2, 2004
    Location:
    Planet Earth
    #1
    Hi Everyone,

    I am experiencing a strange problem with my 12" iBook (purchased July 2005):

    The computer starts up until after the "Mac OS X" screen (with the progress bar), but then the screen goes blank (or rather, blue) and nothing happens. I have tried restarting a number of times, to no avail.

    Please help if you can - I am quite worried at this point. :confused:
     
  2. Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #2
    Can we assume that you use AutoLogin?
     
  3. macrumors 65816

    frankblundt

    Joined:
    Sep 19, 2005
    Location:
    South of the border
    #3
    Does it boot successfully from the System CD/DVD?
    Can you run Disk Utility from there and Repair the iBook drive?

    and of course, just for fun:
     
  4. Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #4
    IMO, not needed.

    This is most likely a problem with the loginwindow.plist, but I'd like to know if it's autologin (and therefore the user's .plist, or if the user logs in and therefore the system .plist).
     
  5. thread starter macrumors 6502a

    alexf

    Joined:
    Apr 2, 2004
    Location:
    Planet Earth
    #5
    Thanks for the responses.

    Yes, it is set so that I need to enter my password upon start-up.
     
  6. Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #6
    My suggestion would be:

    Boot in Single User Mode (hold down Cmd-S at boot)
    At the prompt, type:

    mount -uw /

    Hit Return
    At the prompt, type:

    mv /Library/Preferences/com.apple.loginwindow.plist /var/root/.

    Hit Return
    At the prompt, type:

    reboot

    Hit Return
    Your Mac should reboot and you should get back to the login window. You've lost nothing, as you only moved (mv) the preference file, should you need to go back to it for any reason.
     
  7. thread starter macrumors 6502a

    alexf

    Joined:
    Apr 2, 2004
    Location:
    Planet Earth
    #7
    Thanks, yellow.

    I will give this a try now and report back.
     
  8. thread starter macrumors 6502a

    alexf

    Joined:
    Apr 2, 2004
    Location:
    Planet Earth
    #8
    Yes, this fixed the problem!

    Thanks again for your expertise and help! :)
     
  9. Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #9
    Glad to hear it!
     

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