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Kernel panic > hd appears to be damaged > reboot without dvd?

452 Views 6 Replies Latest reply: Apr 1, 2013 9:54 AM by verv.paulus RSS
verv.paulus Calculating status...
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Mar 20, 2013 12:32 PM

Hi everyone, 

 

I came home to an unpleasant surprise this evening as I was confronted with the "You need to restart your computer because of a problem" error. This is the first time this has happened.

It turns out my HD needs to be restored:

HD must be restored.png

 

The red messages read:

- Invalid number of files on volume

- Invalid number of volume directories

- Error: this hard drive needs to be restored. Restart the computer from a different disk (eg the installationdisk) and use disk utility to restore the drive.

 

I have already repaired permissions but that did not change anything.

 

Some questions that I now have are:

1. I do not have my original Mac OSX install disk. I read that with OSX 10.6.8., there is no way to be able to restore without that disk or without help of a mac store. Is that correct? Is my only/best option to schedule an appointment?

2. I do have Time Machine backups on an external hard drive, but that alone isn't enough to boot from right? I only have backups there, but no system boot files.

3. How likely is it that this is "just some mismatch of digits" that comes with age and is easily fixed, versus "the disk is about to die on you"?

4. If something goes wrong, how much of a challenge will it be to restore from my TM backup disk? I have a lot of audio software and years worth of work on my computer and am afraid to loose my data or having to reinstall/relicense all my software.

5. Is it possible to continue to work with this hard disk for another couple of days before I can get it fixed, or would you advise against that?

 

If needed I can post the panic log, but because the issue seems clear I didn't think that would add much.

 

Any help is much appreciated! Thanks a lot.

Macbook Pro 13" 2.53 ghz intel core2duo
  • ds store Level 7 Level 7 (30,305 points)

    verv.paulus wrote:


    It turns out my HD needs to be restored:

     

    It needs to be repaired from another bootable medium.

     

     

    1. I do not have my original Mac OSX install disk....

     

     

    You can call Apple for a machine specific OS X 10.6 install disk, but you need to know your serial number and/or exact machine.

     

    You will need the disk regardless, and if you take it to them they will just erase everything and install, then send you home and say restore from TM.

     

    If TM resore fails because of corruption transferred over from your corrupted boot drive, then you can lose everything.

     

    If you get the disks, you can do a lot better yourself, or take it to a local PC/Mac softwre specialist that also does data recovery.

     

    2. I do have Time Machin... but that alone isn't enough to boot from right?

     

    TM is not bootable, it's why it's crap. Bootable clones are much superior method.

     

    3. How likely... is easily fixed?

     

    Very likely the disk could be repaired if you had the 10.6. install disk and be on your way.

     

    It all depends what caused the data corruption, if it was a sudden shock to the hard drive, or it's failing it might be worse.

     

    But you can't continue without the disks.

     

     

     

    4. ... how much of a challenge will it be to restore from my TM backup disk?

     

     

    It would be easy, but takes a long time. However TM could be corrupted and fail to restore, there is no way to check it to ensure that like one can with a bootable clone.

     

     

    5. Is it possible to continue to work with this hard disk for another couple of days before I can get it fixed, or would you advise against that?

     

     

    If you have access to your files, do NOT turn off the machine and connect a new external self powered drive and do the emergency quick copy method here. Then disconnect. That will ensure you have your files at least.

     

    Make sure to asusme it's going to go away, export your bookmarks, email addresses, serial numbners etc so you can rebuild if the TM restore fails.

     

    Most commonly used backup methods

     

     

     

    Next go to Apple Menu > About This Mac > more info and find your model (like MacBook Pro 3,1) and your serial number (don't write it here) and use the free MacTracker to find what version of OS X came with your machine.

     

    If it's 10.6.2 or earlier, you can use the 10.6.3 white Snow Leopard Disks, but they don't contan the free iLife like machine specific install disks  do.

     

    If it's 10.6.3 or later, you need to make sure you get machine specific versions of the disks.

     

    Call Apple and order the disks. You wil need them.

     

     

    Then follow these repairs

     

    ..Step by Step to fix your Mac

     

     

    If you turn off the computer and it doesn't start and you don't have a extra copy of your files off then you have to do this

     

    .Create a data recovery/undelete external boot drive

  • ds store Level 7 Level 7 (30,305 points)

    verv.paulus wrote:

     

     

    So I ran this hardware test. Does this support the "just a mismatch of digits" theory from my point 3 above?

     

    Seems to be fine for hardware, so it sounds like data corruption of the bits on the hard drive either caused by shock or just plain failing,

     

    You might have to do a erase and restore, but can't do anything until you get the correct disks.

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