HT1199 my computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. sometimes it refuses to shut down . this issues started after installing OS lion. what do i do?

my computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. sometimes it refuses to shut down . this issues started after installing OS lion. what do i do?

I don't think it's exactly an incomplete installation brody, but most likely in-correct permissions somewhere along the line that either happened, or became magnified during the upgrade. Also, it could be corruption as well.
First thing to do, is boot up holding down Shift key to do a safe-boot so we an clean up any corrupted OS caches, after that do another reboot, but go to the Lion recovery, and scan the HD for errors, repair any if you find them, and then try to do a Repair Permissions job.
That should fix the issue, if not, we can start doing a PRAM reset  and SMC for good measure.

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  • HT204347 Hi my serial number on bottom of my mac is W8*******66E when l try to try the computer on it is just going to grey screen with apple logo and spinning wheel i have tried starting in safe mode and a few other suggested solutions and they have not

    Hi my serial number on bottom of my mac is W8******66E when l try to turn the computer on it is just going to grey screen with apple logo and spinning wheel i have tried starting in safe mode and a few other suggested solutions and they have not worked?
    <Edited by Host>

    What other solutions have you tried?
    This may help you:
    https://discussions.apple.com/docs/DOC-3353
    Ciao.

  • I have snow leopard installed as an OS.  When trying to reboot a MacBook Pro I am getting stuck on grey screen with apple logo and rotating symbol.  What can I do?

    I have snow leopard installed as an OS.  When trying to reboot a MacBook Pro I am getting stuck on grey screen with apple logo and rotating symbol.  What can I do?

    Maybe this might help.
    http://support.apple.com/kb/TS2570

  • My macbook pro 2011 shows grey screen with apple logo and want start

    i was just using my macbook pro and it freezed for a while not responding and i turned it off by pressing the power button. afterwards, i turn it on and it shows a grey screen with apple logo but want start pls somebody help me because am having "my life" on the machine

    Take each of these steps that you haven't already tried. Stop when the problem is resolved.
    Step 1
    The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.   
    There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.a. Boot into Recovery by holding down the key combination command-R at the startup chime, or from a local Time Machine backup volume (option key at startup.) Release the keys when you see a gray screen with a spinning dial. When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
    b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
    c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
    Step 2
    Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
    If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
    Step 3
    Boot in safe mode.* The instructions provided by Apple are as follows:
    Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
    When you see the gray Apple logo, release the shift key.
    If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
    The login screen appears even if you usually 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.
    *Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Post for further instructions.
    When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is damaged and the drive is probably malfunctioning. In that case, go to step 5.
    If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
    If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
    Step 4
    Sometimes a boot failure can be resolved by resetting the NVRAM.
    Step 5
    Launch Disk Utility in Recovery mode (see step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
    This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
    Step 6
    Boot into Recovery again. When the OS X Utilities screen appears, follow the prompts to reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
    Note: You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with proxy servers, or with networks that require a certificate for authentication.
    Step 7
    Repeat step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a backup.
    Step 8
    A dead logic-board battery in a Mac Pro can cause a gray screen at boot. Typically the boot failure will be preceded by loss of the startup disk and system clock settings. See the user manual for replacement instructions.
    Step 9
    If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested.

  • Start up screen stuck on grey screen with apple logo and spinning gear

    Start up screen is stuck on grey screen with apple logo and spinning gear. What should I do?

    See this thread with dominic23’s suggestions:  https://discussions.apple.com/thread/5783326?tstart=0

  • Computer won't start, grey screen with Apple logo only.  Ideas?

    Last night my wife's G5 froze.  It is a G5 2.0 running OS X 10.4.11.  I shut it down (had to use the power button) and tried to restart.  No luck, just made it to the grey screen with Apple logo and spinning wheel.  After a few seconds the Apple logo disappeared and a black box took its place, then the wheel stopped spinning.  It was late, decided top wait until morning before trying again.
    This morning I tried to start up again.  This time got a warning(?) in upper left that a Firmtek item had already started.  I'm sorry I didn't write this all down at the time, so I don't remember the entire message.  Since there is a Firmtek card installed in one of the PCI slots I thought that might be the problem, and I pulled the card, as well as another Adaptec card that was also installed.  Tried to start again, got to grey screen with Apple but this time no spinning wheel.
    Opened media slot manually and inserted Diskwarrior.  Tried to start with Diskwarrior but again only reached grey screen.  Let run for ~5 minutes, until fans started to run and were begining to get noisy.
    Next I reset the PRAM.  No luck, still stuck on grey screen.  Tried Diskwarrior again, this time got another message in upper left.  Here is most of it -
    System Failure : cpu=1; code=60000009 (Invalid pmap)
    Lateset crash info for cpu1;
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    So what's the diagnosis?  I've had various issues with my G5s in the past, but have never had one refuse to boot with Diskwarrior before.
    Thanks in advance for any help! 

    Whew, could be many things, from RAM, (or RAM slots/solder issue), to CPU #1 being bad, (CPU#1 is actually the second one.
    Does it boot into any of these modes?
    Target mode...
    http://support.apple.com/kb/HT1661
    Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
    /sbin/fsck -fy
    Repeat until it shows no errors fixed.
    (Space between fsck AND -fy important).
    Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
    http://docs.info.apple.com/article.html?artnum=106214
    We might get clues with verbose mode...
    http://support.apple.com/kb/HT1492

  • When turning on my mac book pro it displays a screen with apple logo and begins loading a loading bar, after this continues to show loading circle however has been like this all day still no different. Tried turning it on and off however still same!

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    ... then run Disk Utility, Repair Disk.
    Also:
    Resolve startup issues and perform disk maintenance with Disk ...
    Mac troubleshooting FAQ: start-up woes
    How To Fix Common Mac Startup Problems
    Mac Stalls on Gray Screen at Startup - Troubleshooting Mac Startup ...

  • Macbook Pro (2011) froze while working, forced shut down, now won't turn on. Grey screen with apple logo and spinning wheel for hours. Help?

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    Unfortunately do not know the operating system since I never updated anything and I can't get in to it.
    Thanks for your assistance.

    If you want to preserve the data on the boot drive, and it's not already backed up, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data, you can skip this step.
    There are several ways to back up a Mac that is not fully functional. You need an external hard drive to hold the backup data.
    1. Boot from the Recovery partition or from a local Time Machine backup volume (option key at startup.) Launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
    2. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
    3. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

  • Hi my iMAc 27 inch starts up to the grey screen with apple logo and loading bar underneath it loads halfway then freezes up and shut down after a while please help

    Hi my iMAc 27 inch starts up to the grey screen with apple logo and loading bar underneath it loads halfway then freezes up and shut down after a while please help

    Try the tips listed here Mac OS X: Gray screen appears during startup - Apple Support

  • My iMac wont go past the grey screen with Apple Logo and question mark  a caution mark

    My iMac wont go past the grey screen with Apple Logo and question mark  a caution mark

    You may find this support article helpful:
    http://support.apple.com/kb/TS2570
    Ciao.

  • I just opened my imac, i got the grey screen without apple logo, I just opened my imac, i got the grey screen without apple logo

    I just opened my imac, i got the grey screen without apple logo, I just opened my imac, i got the grey screen without apple logo

    I am curious as to why you repeated your question twice both in the subject box and in the discussion box?
    In answer to your question, have you tried using
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       1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
       2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
          Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
       3. Click the First Aid tab.
       4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
       5. Select your Mac OS X volume.
       6. Click Repair. Disk Utility checks and repairs the disk.
    Then, if you can, reboot to your internal drive and repair permissions.

  • Grey screen with apple logo after new HDD install

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    it has now been 30 minutes and no change. I still have the grey screen with apple logo. please help

  • Need Help For iMac G5 Stuck On Grey Screen Or Apple Logo No Spinning Gear!

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    You need to have the install DVD that was issued with the iMac
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  • Grey Screen with Apple Logo - HELP

    First of all: I know there is another topic for this, but this is a different problem (i think?)
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    Here there is a lot of topic about that subject.
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  • Hi my iPhone 4 won't turn on . When plugged in on several different chargers the following happens .  Blank screen then apple sign for a short period then it buzzes and goes blank. When connected to mac  get message that phone is in recovery mode and that

    Hi  my iPhone 4 won't turn on . When plugged in on several different chargers the following happens .  Blank screen then apple sign for a short period then it buzzes and goes blank. Have tried power button and home button but no change ,When connected to mac  get message that phone is in recovery mode and that i must restore this phone before it can be used with iTunes . Is this my last resort as I have some photoessays I don't want to loose.
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    Hello, Chantal105
    Thank you for visiting Apple Support Communities. 
    If your device is in recovery mode you will need to restore the device. 
    If you can't update or restore your iOS device
    http://support.apple.com/kb/HT1808
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    Jason H.

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