My MacBook won't re-boot

I changed the access setting on my MacBook G4 hard drive to "read only" & now it won't re-boot the operating system. Any advice would be appreciated, thanks

Apart from reformatting your drive? The problem with the Boot Camp active repartitioning is that it does require quote a bit of free space beyond the size of the partition you wish to create. So it's possible that it's actually no possible to create the partition you're after given your Mac OS X disk usage.

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    ndelc wrote:
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    If you find out how to access your drive from the Leopard DVD, you need to invoke SU privileges and undo whatever it was you did.
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    Message was edited by: nerowolfe

  • After 10.4.11 upgrade Macbook won't start can't boot from external HD

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  • 17 MacBook Pro is not booting up. Won't get passed grey screen with Apple wheel spinning below.

    17 MacBook Pro is not booting up. Won't get passed grey screen with Apple wheel spinning below.

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  • Macbook won't boot up - grey screen only

    Hi,
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    I have the same problem, just the grey screen and tried
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  • Macbook won't boot up anymore after trying to reformat

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    it hangs at a white screen with a folder with a question mark
    Startup your Mac while holding down the Option key. That should prompt the Startup Manager window where you can select the startup disk.
    A flashing question mark appears when you start your Mac

  • MacBook won't boot up power light on

    My MacBook won't boot up without the system disk, has Lion with 4 Gb Ram all updates, has a DVD stuck n the drive any suggestions

    Have you tried booting into Lion recovery mode? Boot holding the command and R keys down.

  • MacBook won't boot - stuck showing the Apple logo and the spinning circle.

    Hi.
    My MacBook suddenly froze when I was using it today. Displaying the spinning beach ball.
    It never came out of it, fan running at max speed, so I tried to force restart it (Control-Command-Power), but that didn't work, so I forced the MacBook off (holding the power button pressed.)
    When trying to start the MacBook again it couldn't boot. It kept displaying the grey screen, with the Apple logo and the spinning circle below the Apple logo.
    I left the MacBook like this for 10-15 minutes, but nothing happened.
    Went on to try the following.:
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    *- Command-Option-P-R (Resetting PRAM and NVRAM).*
    *- Resetting System Management Controller (SMC).*
    *- Command-S (singleuser boot)*
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    Stops on the following line, and fan ramps up to full speed.:
    DNSServiceRegister("ssh.tcp."): -65537)
    Force reboot didn't work. Had to force it off.
    But, nothing helped.
    It simply won't boot.
    I also tried to boot Ubuntu 7.10, but it hangs after a short while displaying "Kernel panic".
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    The only thing that has worked so far is exiting the Ubuntu 7.10 CD boot menu, and pressing enter on the prompt that appears.
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    :. nattugglan

    This happened to me last night.
    I was updating my iPod and I got a message saying that it needed to do an update. I installed the update and went on ahead putting new songs on my iPod. When it was finished i ejected as I usually do and closed down.
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    I am loathed to do a reinstall as I have some things on the Macbook that I had not yet backed up.
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  • MacBook Won't Boot just on AC.

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    If your MacBook won't boot on just the AC adapter, and you are certain the AC adapter is not damaged, then there is a hardware issue with your computer that needs to be repaired.
    ~Lyssa

  • Oh, shoot! My MacBook won't boot! Silver screen is all I see!

    Oh, shoot! My MacBook won't boot! Silver screen is all I see

    Try a PRAM reset:
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    Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    Turn on the computer.
    Press and hold the Command-Option-P-R keys before the gray screen appears.
    Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    Release the keys.
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