MacBook Pro stuck at grey screen after Yosemite upgrade

upgraded to yosemite yesterday. Reboot and stuck at grey screen(login in page) when i log in there is some codes thing at the left top corner of the screen. and then it reboots again. Which means I can never log onto the computer. what should I do

If you can't start up and log in in the usual way, try in safe mode.
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.
Log in as an administrator to carry out these instructions. If you have only one account, you are the administrator.
☞ If you don't see any reports listed, but you know there was a panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
Safe mode is slower than normal, and some things won’t work at all.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t start in safe mode.
If you're able to log in, 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.
In the Console window, select
DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A panic report has a name that begins with "Kernel" and ends in ".panic". Select the most recent one. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
I know the report is long, maybe several hundred lines. Please post all of it anyway.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
Please don’t post other kinds of diagnostic report.

Similar Messages

My 2014 MacBook Pro stuck on grey screen since trying to update software over an hour ago

My 2012 MacBook Pro has been stuck on the grey screen for more than hour since I tried updating the software.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the 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 the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) 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.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start 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.
d. 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
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up 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.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start 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 the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up 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, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup 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 restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the 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 restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

MacBook Air stuck in grey screen after ML installation

Hi everybody,
I have downloaded and installed Mountain Lion on my MacBook Air (2011). After the installation the computer restarted and stuck in the grey loading screen, showing the apple logo and the turning wheel. I've left it alone for hours but nothing happens. This is still the case and I cannot find a way out.
Here is what I have tried so far:
- Reload and reinstall ML via recovery mode (twice). Recovery mode shows me that 10.8 is installed, by the way
- Restart without peripherals connected
- Reset PRAM and NVRAM
- Disconnect all cables and let the computer rest
- Diagnose and repair hard drive (showed me a message that a Java-related group has a value of 80 but should be 0. Repair was "successful")
- Safe boot (A bar appears in loading screen but disappears after it is about halfway full and I'm back in grey screen)
Unfortunately none of this worked. I have a Time Machine backup but it is located at the other end of the country (long story) and I can't access it easily.
Do you guys have any more ideas what else I could try? I'd really appreciate it.
Thanks!
B4sti

I'm having the same issue. My MacBook air is stuck on the grey screen with the apple logo. I've waited for hours. Has anyone found a resolution to this issue?

Macbook pro stuck on grey screen and making buzzing noise

hi,
Lately my mac has been playing up (1 year old), ever now and then it would make a funny buzzing noise, coming from the left side.. and i noticed it was running slower than usual. Im Running Mountain Lion and have 566GB of disk space left... after using it for about 5 minutes the buzzing noise would start and it would become unresposive with the spiral beach ball. So i would have to hard restart it. Now ever time i turn it on it gets to a grey screen and doesnt load further. eventually the sound starts again!! i have tried starting it in safe mode and verifying my disk in utilities where everything "seems to be ok" !! someone please help!!!

Ethan997,
define “an average disk”.
Your question regarding fault is akin to asking “is it my fault or the car maker’s fault that my spark plugs no longer work?” — disks, like spark plugs, don’t last forever, and fault doesn’t come into it. Similarly, the fact that your disk (or spark plugs) worked yesterday and doesn’t work today is not a sudden “breakage” — by their nature, they have a finite, variable amount of time in which they do work. This is why (in the case of disks) making regular backups is important; when the disk stops working, you’ll have an easy way to recover from such a situation.
That being said, if your MacBook Pro is still under warranty, you should be able to get a replacement disk from Apple. And even if it isn’t, you could still try reformatting your current disk, to see if you can squeeze some more use out of it — but if the reformatted volume keeps needing to be repaired (and you have the patience to deal with recovering from the same situation again and again), that’s a sure sign that a new disk would be your best option.

Macbook Pro stuck on grey screen with Apple logo

Macbook Pro was purchased in mid-late 2009 and is running on OS X 10.6. Today is suddenly stopped responding and so I turned it off. When I turned it back on it opend to the grey screen with the Apple logo and the loading icon and that is where it stayed. I have been searching for the answer on different forums but have yet to find a solution. My hard drive is appearing in the Disk Utility but not in the box when I try to reinstall OS X. Any suggestions on what to do?

Create a data recovery, undelete boot drive
dustysjuls wrote:
Will that erase all of the files on my hard drive? Or will it just erase and reinstall the operating system? I do not have my files backed up.
A #18 Reinstall Just OS X, details here:
Step by Step to fix your Mac

Macbook pro stuck on grey screen

I recently got a version of mac that i thought i could use on my macbook from the internet and when i tried to run the installer it quit at the very end. after that none of my applications would open. i tried to reset but then it just goes directly to the apple logo on the grey screen with no loading bar or spinning circle at all. it just stays there now. is there any way i could do a reset of my laptop preferrably not using the disk to install mac again? im currently using 10.6.

skylar57 wrote:
I recently got a version of mac that i thought i could use on my macbook from the internet
Does not make sense. Please clarify
and when i tried to run the installer it quit at the very end. after that none of my applications would open. i tried to reset but then it just goes directly to the apple logo on the grey screen with no loading bar or spinning circle at all. it just stays there now. is there any way i could do a reset of my laptop preferrably not using the disk to install mac again? im currently using 10.6.
http://support.apple.com/kb/TS2570 Mac OS X: Gray screen appears during startup

Stuck at login screen after Yosemite Upgrade - 2013 27" imac won't recognize keyboard or mouse

I installed yosemite without issues on my 2013 macbook pro retina so decided to try it on my 2013 27" imac. Install went fine until I get to login screen. Wireless keyboard and mouse won't pair so I can't type in password. Connected generic wired keyboard and mouse and still won't recognize it.
However, when I restart it I can hold down option on keyboard and it will bring up list of hard drives to boot from (I also have windows installed with bootcamp) so I know imac pairs the key

So the iMac was purchased by my father in 2011 shortly before he died. I thought, why not check if he also purchased Applecare at the same time? Turns out he did! So after calling and trying to reset the SMC, etc. with it not working the Apple tech told me to turn it over to an authorized repair shop here in Louisiana. Hopefully they can fix it.

Macbook Pro won't boot OSX after Yosemite upgrade 10.10.3

I downloaded the update to 10.10.3 this morning before driving my daughter to daycare. When I came back, my Macbook Pro had rebooted into Windows 7 (Boot Camp). I restarted it by telling it to reboot to OSX, but it boots Windows again. If I turn it off completely, and then turn it on again, there's no chime... just a black screen for about 30 seconds, followed by "Starting Windows". I'm about to reboot to try resetting NVRAM and SMC, but I don't know if that's going to work without the chime...
I really need OSX to get going, so any help appreciated.

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 the backup unless something goes wrong. If the system was upgraded from an older version of OS X, you may need the Apple ID and password you used.
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. The same goes for Xcode. All other data will be preserved.
*The linked support article refers to OS X 10.10 ("Yosemite"), but the procedure is the same for OS X 10.7 ("Lion") and later.

Brand New MacBook Pro stuck on startup screen after Lion os X update

I literally got it an hour ago and when it was updating it got stuck on the startup screen. I've tried turning it off and on but it still wont load. Help

I'm not going to read that huge rambling post, sorry.
But you can look through my user tips here
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/

My MacBook Pro shows a grey screen at start-up how do I fix this problem?

My MacBook Pro shows a grey screen when I try to login and won't go onto my homepage. Why has this happened and how do I fix it?

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 startup failure is to secure the 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 the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) 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.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start 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.
d. 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
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up 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.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start 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 the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up 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, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup 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 restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the 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 restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

My MacBook is stuck on grey screen with rotating circle

My MacBook is stuck on grey screen with rotating circle

See this Apple note on dealing with that. If you have OS X 10.8 Mountain Lion, this is the equivalent note, howver, it's not as detailed.

Downloaded OSX Mountain Lion on MacBook now stuck on grey screen with spinning wheel HELP?!?!

Downloaded OSX Mountain Lion on MacBook now stuck on grey screen with spinning wheel. What can I do, will I loose everything on my laptop?

ashg23 wrote:
Thank you, I have restarted but it is still stuck at the grey page with the spinning wheel? Any idea?
Have you started up holding down Command + R and attempted to install again?
Pete

My new MacBook pro is stuck on grey screen after loading kies, My new MacBook pro is stuck on grey screen after loading kies

My new MacBook pro is stuck on a Grey screen after I downloaded Samsung kies on it. How do I solve this problem?

Hi there,
You may find the troubleshooting steps in the article below helpful.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
-Griff W.

MacBook Pro stuck on grey gear screen

I have a 2011 MacBook Pro. I downloaded the newest update of Mountain Lion today. After downloading and restarting, my MacBook stayed on a grey screen with an unmoving gear symbol towards the bottom. It has been like this for almost two hours, and I feel like something is wrong. Any advice?

It sounds like the update was not able to get installed completely. I would start with an SMC reset, by following the directions listed on this page: http://support.apple.com/kb/ht3964
If that doesn't take care of things, it sounds like you should try a manual shut down and boot into the recovery partition, by holding command + r when you hear the start up chime.
Once you're in the recovery partition, open disk utility and select repair disk permissions and verify disk. If prompted, select repair disk.

Mac Pro Stuck at Grey Screen, then will only boot into OS X Utilities.

My Mac Pro is stuck at Gray Screen. When I reset PRAM, it loads the OSX Utilities screen, prompting me Restore from Time Machine, Reinstall OS X, Get Help, or Disk Utility. I ran Disk Repair and Repair Premissions, same thing.... stuck at grey screen.
What will happen to the data on my HD if I choose to Reinstall the OS X? IS that the best choice? Thanks.

Off hand I think your drive may be bad. But to find out you need to erase the drive, so you will need to have a recent, bootable backup.
Install or Reinstall Lion/Mountain Lion from Scratch
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 Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
        the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
If this does not work, then you need to replace your hard drive.

MacBook Pro stuck at grey screen after Yosemite upgrade

Similar Messages

Maybe you are looking for