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Stuck with the Apple logo on start up

1603 Views 3 Replies Latest reply: Nov 18, 2012 10:08 AM by universalis RSS
universalis Calculating status...
Currently Being Moderated
Nov 18, 2012 8:34 AM

I have been searching everywhere but I cant seem to find a fix for this issue.

 

A friend of mine is having problem with her new MacBook pro loaded with OS X Lion as it gets stuck with the Apple logo on start up. A bar shows up at first but never gets filled and then suddenly disappears. The spinning circle is there though. I have waited more than an hour once but nothing happened.

 

I found some solutions that I have tried: http://support.apple.com/kb/TS2570

I have tried a

simple reboot

safe boot (holding down shift key and shift+cmd+v keys)    

reset NVRAM/PRAM (holding down option+cmd+r+p).

 

None of these has helped. Booting in safe mode gives

...

Invalid sibling link

(4, 93)

** Rebuilding catalog B-tree.

** The volume Macintosh HD could not be repaired.

 

***** FILE SYSTEM WAS MODIFIED *****

hfs: Removed 0 orphaned / unlinked files and 20 directories

 

The MacBook is pretty new but hasnt been used. So theres is nothing important on the hd. And since it came with OS X Lion there was no CD so I cant install from CD. Maybe I could burn a copy of Lion or try to put Lion on a USB stick?

 

Any help would be very appreciated. Thanks!

  • ds store Level 7 Level 7 (30,305 points)
    Currently Being Moderated
    Nov 18, 2012 8:52 AM (in response to universalis)

    ** The volume Macintosh HD could not be repaired.

     

    Your problem sounds minor, run through this list and when you Repair Disk, do it again a second time and it should hopefully be clear.

     

    Step by Step to fix your Mac

     

     

     

    The MacBook is pretty new but hasnt been used.

     

    Likely what is is factory bad sectors that all new drives have. They normally get mapped off automatically, but can cause issues in newer machines until they do. There is a way to force map them off, which is going to solve the problem.

     

     

    So theres is nothing important on the hd. And since it came with OS X Lion there was no CD so I cant install from CD. Maybe I could burn a copy of Lion or try to put Lion on a USB stick?

     

    No need, there is a Recovery HD partition which your going to learn all about in the above link.

     

     

     

    If Disk Utility > Repair or the above Steps don't fix the problem, then proceed:

     

     

    What you do is backup any files off the machine (Step #9) and then from the Recovery HD partition use Disk Utility to Erase the Macintosh HD partition with the middle secure erase feature (important) this will map off the bad sectors when the zero file is read back for conformation. It will take awhile to complete.

     

    Reducing bad sectors effect on hard drives

     

     

    Then quit Disk Utility and install OS X Lion from Apple's servers using a (preferably) Ethernet wired connection, AppleID and password of the original user so they can update.

     

    The free iLife won't be on the machine, but all is in this link how to restore.

     

    https://support.apple.com/kb/HT4718

     

     

    When you recreate the account on the machine, keep the same user name if you want to return those files into it.

  • tzbikowski Level 4 Level 4 (1,945 points)
    Currently Being Moderated
    Nov 18, 2012 8:43 AM (in response to universalis)

    It seems like the Hard drive had it and may need replacing.

    In order to make sure yiu need an install CD or you can also install from USB as you sggested.

    You need to download the system on another computer, make bootable CD or USB and start from it.

    Before you run install open disck utility and check the hard drive for errors - most likely you will need to replace it.

     

    Let m kenow if you need detailed info on any of the steps I mentioned.

     

    TZ

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