14 Replies Latest reply: Apr 26, 2014 5:39 AM by Vishwanathanr20
Vishwanathanr20 Level 1 Level 1 (0 points)

My mac won't start. Even when I start with option and click recovery hd a grey screen with apple logo comes and nothing else. I started in single user mode and checked that disk is ok. Still not starting up. It happened after sudden slowing down of mac


MacBook Pro, OS X Mavericks (10.9.1)
  • Kappy Level 10 Level 10 (255,610 points)

    Install Mavericks, Lion/Mountain Lion Using Internet Recovery

     

    Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.

     

    Boot to the Internet Recovery HD:

     

    Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.

     

    Partition and Format the hard drive:

     

    1. Select Disk Utility from the main menu and click on the Continue button.

     

    2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.

     

    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.

     

    Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.

     

    Note: You will need an active Internet connection. I suggest using Ethernet

                if possible because it is three times faster than wireless.

     

    This should restore the version of OS X originally pre-installed on the computer.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    Thanks for the help. But after disk utilities was started and partitioning process was started it failed. Thereafter it could not be started. Is it that the HDD is dead. But the Mac is just 1 yr old. Is it possible HDD dies in 1 yr?

  • Kappy Level 10 Level 10 (255,610 points)

    It would help to tell us why it failed. What error message did you receive?

     

    Some drives may be dead when they leave the factory. Of course it's possible for a hard drive to fail after one year.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    The sequence of events were as follows:

    1. Mac was observed to be slow even when running mail and safari requiring forced quits often

    2. Verify disk and repair disk permissions were undertaken and after repairing permissions the result showed disk ok. But still mac was slow.

    3. Went to terminal and with fsck cmd repeated twice till disk was ok.

    4. At boot option and shift  did not work.

    5. Recovery from Internet cmd, option R was tried. Disk utilities started and showed macintosh HD the only drive. Started partition and formatting but after start some unknown error came and the process stopped.

    6. Once again internet recovery was attempted. But this time after disk utilities started, I attempted restore from time machine backup which was on a portable HDD. When plugged in USB the time machine backup was detected and I was allowed to choose the backup red. But this time the target drive macintosh HD was not shown. So I had nowhere to restore.

    7. That is why I think it could be a hardware problem of HD.

     

    Is this diagnosis ok

    Regards & Thanks

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    I will have to take the mac to an Apple service CENTER for further repairs.

  • Kappy Level 10 Level 10 (255,610 points)

    Very helpful. It would appear that in the process of what you did you have corrupted the drive. The drive still may be OK, but hard to tell at this poing.

     

    When you observe Disk Utility is there any entry on the left sidebar or is it completely blank? For example, might you see something like this:

     

    Screen Shot 2014-04-25 at 9.53.02 PM.png

     

    Of course it would not be the same as mine, but I'm more interested to know if an entry like the above appears.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    No nothing of that sort. It was the standard 500gb Toshiba.... Which normally appears

  • Kappy Level 10 Level 10 (255,610 points)

    Then your drive is OK, but you no longer have a partitioned volume. Do this:

     

    Install Mavericks, Lion/Mountain Lion Using Internet Recovery

     

    Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.

     

    Boot to the Internet Recovery HD:

     

    Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.

     

    Partition and Format the hard drive:

     

    1. Select Disk Utility from the main menu and click on the Continue button.

     

    2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.

     

    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.

     

    Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.

     

    Note: You will need an active Internet connection. I suggest using Ethernet

                if possible because it is three times faster than wireless.

     

    This should restore the version of OS X originally pre-installed on the computer.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    You mentioned about corrupting the drive in the process. Would that be a possibility? Because when mac doesn't boot aren't we suppose to try various options of booting? Interestingly before this mac I had a Toshiba Windows Xp pc of 2005 vintage. And whenever it did not boot I have tried a no. Of things including formatting a number of times. In the 8 yrs that it was with me I had HDDD failure just oncethat too after 2 yrs of buying. That is why a mac HDD failing just 1 yr after purchase is a rude shock.

  • Kappy Level 10 Level 10 (255,610 points)

    I'm afraid you have the wrong information for troubleshooting certain problems. I read what you said you did which was a mix of rather useless things for fixing your problem. Then at the end you tried repartitioning your drive incorrectly.

     

    If you will follow the instructions I just provided you can get your drive repartitioned and reformatted then reinstall OS X. Unfortunately, if you had any files of your own they will be lost.

     

    A hard drive failing after one year is neither a shock nor rude.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    But what about the drive not getting formatted

  • Kappy Level 10 Level 10 (255,610 points)

    What about it? Why does that matter? You tried to partition a drive improperly, then tried to format an unpartitioned drive.

     

    If you will try what I suggested you may be able to get the computer working. Why not focus your time on that.

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    Ok trying it now. Will get back

  • Vishwanathanr20 Level 1 Level 1 (0 points)

    I tried what you said. After a few mins of the partitioning commencement unexpected error occurs. Took it to apple service CENTER. After checking he confirmed that HDD needs replacement. Thanks for your help.