13 Replies Latest reply: Dec 28, 2013 2:10 PM by MikeSpiers
maruf85 Level 1 Level 1 (0 points)

When I try to turn on my mac it gives the start up sound but then there are a bunch of weird writings on the screen like 0xffffff8083f along with other numbers and letters. And at the end it says ''system uptime in nanoseconds ............ and thats it. This happened all on a sudden. It was doing a automatic software update and the next thing I see is this..... I really dont understand what is going on. If anyone has a solution for this problem please help me out.

 

I am not sure about my operating system though.


MacBook Pro, iOS 7
  • Linc Davis Level 10 Level 10 (150,875 points)

    If you can't boot in the usual way, try a safe boot.

     

    During startup, you’ll see a progress bar, and then the login screen, which appears even if you normally log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. If you have more than one user account, you must be logged in as an administrator to carry out these instructions.

     

    Safe mode is slower than normal, and some things won’t work at all.

     

    Note: If FileVault is enabled on some models, or if a firmware password is set, or if the startup volume is on a software RAID, you can’t boot in safe mode.

     

    If you're able to boot, launch the Console application in any of the following ways:

     

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

     

    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

     

    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

     

    Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select

      

    View ▹ Show Log List

      

    from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

  • maruf85 Level 1 Level 1 (0 points)

    Thank you very much for your reply. I tried using it in sfae mode by pressing the and holding the shift button but it wouldn't allow me to go into safe mood. Is there anything else that I can do?

  • Linc Davis Level 10 Level 10 (150,875 points)

    If you don't already have a current backup, back up all data, then reinstall the OS. You don't need to erase the startup volume, and you won't need your backup unless something goes wrong. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.

      

    There are ways to back up a computer that isn't fully functional. Ask if you need guidance.

      

    If you installed the Java runtime distributed by Apple and still need it, you'll have to reinstall it.

  • maruf85 Level 1 Level 1 (0 points)

    Thank you so much for your guidance I finally managed to reinstall the OS X Mountain Lion, its reinstalling now as am writing this message . However, I could not backup anything as I do not have any external hard drive.

     

    Once reinstall is complete will I lose all my previous data?

  • Eric Root Level 7 Level 7 (29,245 points)

    You shouldn't as long as nothing goes wrong. You should start creating backups, preferably more than one.

  • maruf85 Level 1 Level 1 (0 points)

    Thank you very much sir, I did exactly as you advised and now my Laptop is up and running just like before. I also have all my valuables nothing was deleted. I highly appreciate your support and couldnt thank you enough.

     

    I just hope that such problem dosent happen again.

     

    Thank you ince again.

  • maruf85 Level 1 Level 1 (0 points)

    Yes I will start doing that as of now. Thank you for your contribution.

  • Eric Root Level 7 Level 7 (29,245 points)

    You are welcome.

  • Linc Davis Level 10 Level 10 (150,875 points)

    Once reinstall is complete will I lose all my previous data?

     

    I don't know. I do know that if you don't back up, you're certain to lose every bit of data you have, sooner or later. What happened today was just a foretaste.

  • gbriel Level 1 Level 1 (0 points)

    I am in the middle of a kernal panic myself, and I have not backed up my computer.  I was wondering how you back up a laptop that is not fully functional.

     

    thanks

  • aaidaaa Level 1 Level 1 (0 points)

    I have the same problem. I tried the safe boot, pressing and holding Shift, but it is not working for me and i dont see a progress bar or the login screen.  I have no idea what to do and i need my MacBook asap and i cant make appointment in Apple Store as they are full. Please Please help me!

  • Eric Root Level 7 Level 7 (29,245 points)

    You might want to consider starting a new discussion. Since this one is marked solved, less people are likely to look at it.


  • MikeSpiers Level 1 Level 1 (0 points)

    This helped me sort out my problem - thank you.  The link to reinstall the OS. that you included was the key help.

    Linc Davis wrote:

     

     

    If you don't already have a current backup, back up all data, then reinstall the OS. You don't need to erase the startup volume, and you won't need your backup unless something goes wrong. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.

      

    There are ways to back up a computer that isn't fully functional. Ask if you need guidance.

      

    If you installed the Java runtime distributed by Apple and still need it, you'll have to reinstall it.