How to get past the grey start up screen after mavericks update

I have recently installed a free update of Mavericks on the App store. However after installing this, the Macbook Pro that i've installed on will not boot beyond the Grey start up screen. I was running Snow Leopard on a machine with intel core 2 duo processors 4 Gb of RAM and over 100Gb of free memory.
I have attempted a safe boot (holding down shift while while holding the power button down), and Reseting the NVRAM by pressing 'command', 'option', 'P' and 'R' at the same time.
I do not have an installation disk or a time machine back up.
Does anyone know how to get passed the Grey start up Screen?
Any Suggestions would be mucho appreciated.

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Macbook won't get past the grey start up screen

I purchased my Macbook in 2008, roughly July.
My fiance unknowingly shut down my macbook in the middle of start up. Before that it was running perfectly fine, I had no issues.
After my fiance stopped the start up, the macbook won't turn on. It'll load up to the grey loading screen (example here)... It doesn't make much noise as it starts up either. I have all original discs that came with the macbook, if that helps any.
I'm frustrated, as I can't afford to replace my mac at this point.
Any idea what I can do?
Thanks..

Hopefully, nothing permanent. Do the following:
If you have Snow Leopard installed:
Reinstall Snow Leopard without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.
If you have Lion installed:
Reinstalling Lion Without Erasing the 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.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.
If you have Leopard installed:
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger, Leopard or Snow Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

G5 dual 2.7GHz refuses to get past the grey apple logo screen no matter what I do!

Hoping that someone might be able to help, as I think I have tried pretty much everything and I’m running out of ideas now!
It’s a G5 dual 2.7GHz that refuses to get past the grey apple logo screen no matter what I do!
everything passes the extended apple hardware test (2.5)
3GB of RAM (2x1GB brand new from crucial)
won’t start from a original OS 10.58 disk
passes disk utility when connected to another mac via FW target mode
nothing other than keyboard/monitor attached
all of this done; http://support.apple.com/kb/TS2570
tried alternative HDD’s without any joy
won’t safe boot
stays at the grey apple logo screen and the fans then start revving up excessively
Any other suggestions or advice very gratefully received!

BDAqua wrote:
Seems strange that it's trying to invoke "AppleIntelCPUPowerManagement" on a G5, but maybe it's all inclusive???
Though it exists on my Universal 10.5.8 Install, it does NOT appear to be a loaded extension....
/System/Library/Extensions/AppleIntelCPUPowerManagement.kext
BD, is that showing up in your PM's extensions folder? I wouldn't expect to see it loaded in a PM, but I wonder why the installer loads it unless the 10.5 installer loads a system that could boot an Intel, too, when it installs on a PM. (I read somewhere this weekend that an Intel will actually boot from an APM formatted disc as well as a GUID formatted disc) Curious.
I recall seeing yesterday or Saturday on one of the discussion threads someone having that extension show up in a verbose boot on a PM that was having problems booting into Leo. I think I advised trashing the kernel caches and touching Extensions in that one, but it is puzzling that it shows up here as well.
This is the other discussion: https://discussions.apple.com/message/15161427#15161427

How to get past the Flash Player Download screen when a newer version is already installed?

Does anyone know how I can get past the Flash Player Download? I already have a newer version then what is trying to load. Therefore, I get a screen telling me the same, but I still can't access the files I need. It is a vicious loop I'm stuck in. Can anyone help me?

Hi..
Are you running Lion v10.7 by chance even though your profile indicates v10.6.8 ??
I ask because you can only reinstall apps using Lion Recovery
Much better to ask for help with Safari here before trying to delete the app and reinstall.
Is the Safari app still in the Trash by chance?

TS3048 what if keyboard won't link up and you can"t get past the grey start screen?

Problem with wifi keyboard: not being discovered by the mac. new batteries tried. just tested o iPad and it is fine (what i am typing on for this Q).
Can't get past grey startup screen. :(

Is this a bluetooth keyborad or WiFi? Take a look at this link, http://support.apple.com/kb/ht1809

It won't get past the grey start screen.

I had a new logic board put in last year. Now it seems like it running hot fan spinning and just sits on start screen before you see the logo. Any ideas on what to do. I cooled it off. Unplugged it. Removed the battery and still same result.

I'm having the same problem everynow and then... I'm running mac osx lion. I have reinstalled lion to see if that will work. now it is starting again but not sure for how long. The problem is that I'm getting small interruptions while running itunes or a movie... it's a like a second cut every minute or so... strange. Never had any problems before.
If it keeps on behaving weird I'll do a clean install.
I suggest you run disk utility and AHT (apple hardware test) before you do anything, AHT should be in the CD you got when you purchased your machine and the disk utility should be initiated by holding option while booting (chose recovery HD if you're running lion). Hope that helps.

My macbook pro wont get past the grey screen at startup. Help!!

After doing a run of the mill software update on my macbook pro (running snow leopard) it froze during the "moving items into place" stage. I forced a shut down and now it wont get past the grey screen with apple logo and spinning wheel. I have tried booting from the original DVD but it still freezes. When I boot it in verbose mode it seems to stop at "jnl: unknown-dev: update_fs_block: error reading fs block # 3597880! (ret 5)", the Apple AHCD Disk Queue manager :: set power state is timing out and there is a disk I/O error. I have tried to reset the power manager (not sure if it worked or not) and I have also tried clearing the PRAM (again, not sure of that worked). When I try to look at the hard drive using target mode on my imac the hard drive doesn't come up but the DVD does. I'm concerned that my hard drive is fried. Any suggestions?

It would help to state in your post which remedies you tried that didn't work.
Start here > OS X Lion: If you see a gray screen at startup
If nothing there helped, try Starting up in Safe Mode
Safe Mode deletes some system caches that may help.
A Safe Mode boot takes longer than a normal boot so be patient. Once you are in Safe Mode, click Restart from the Apple menu.
If a Safe Mode boot didn't work, since your Mac has OS X v10.7 installed, restart your Mac while holding down the Command + R keys so you can access OS X Recovery built in utilities. The startup disk may need repairing.
Tip: Hold down the Eject key while starting up your Mac to eject a disc.

Rebooting old mac g5: Can't get past the grey screen.

This problem concerns an old mac g5 that I had replaced three years ago because it hadn't been working properly. I am getting it out because my son needs a computer and I was hoping that the thing would work for a little while.
I can't get past the grey apple screen. I have the installation disc in and restart while pressing the c. I just am not getting any further than that. The fans begin to sound like a jet taking off. I have tried resetting the pram while starting up, but that doesn't seem to be working either. I have heard about a hair dryer trick and don't really know what is supposed to get warmed up by that.
Does anyone have any suggestions?
Thanks.

No hair dryer. What you need to do is make sure the PRAM battery is new. It is a coin shaped battery on the logic board. Radio Shack sells them.
Option key booting sometimes works. You have to us a Mac OS X 10.5 or 10.4.6 retail disc, which are black with a white X logo, and do not say Update Dropin or OEM on them. If you have the original iMac G5 disc that's fine, but web browsing with older operating systems is not very friendly. Some of these machines were known to have leaky capacitors, and getting the power supply replaced on them now would be quite hard because of the age.
http://www.ifixit.com/ may be able to help if you suspect that.

Another iBook cannot get past the grey screen with spinning gear

I have read the other posts on iBooks not starting up. I too have used Onyx recently but this was to cure the problem of a freeze. Now start up cannot get past the grey screen. PRAM has been zapped and safe mode will not work. Worse, the CD drive will take CDs so cannot go back to start up disk.
Bizarrely, a visit to the Apple Store and the iBook started no problem. System was reinstalled using archive option and various health checks apparently showed no problems. But then got back home and again start up froze at grey screen with spinning gear. I have left it on this for over 15 minutes but to no avail. I have tried to connect to another ibook using T key to get target mode. I'm not sure if I am doing this right. I have started up working iBook plugged in the firewire to both machines and then started up ailing iBook holding down T key. 2nd iBook wont start at all.
Any suggestions?

An Archive and Install will preserve you user settings and data. You will need a minimum of 5 GB free on the hard drive to perform an A&I; you can reduce the space required by about 1 GB by selecting the option to install language support only for the language you use (assuming you don't need multiple languages).
However, after seeing your other post (BTW, it'll be easier to keep track if relted issues are in the same thread), you do not want to try an A&I if Disk Utility is reporting anything about 'could not be repaired'. Doing so will would ensure problems down the road, if it worked at all. It's possible for one disk problem to mask another. Whenever Disk Utility (or any other repair utility) reports making repairs, it's good practice to repeat the repair until it reports no problems found or it becomes clear it cannot repair the disk.
DiskWarrior has an excellent track record at repairing problems that Disk Utility cannot (especially Disk Utility versions prior to OS X 10.4.2).
If the drive cannot be repaired, you may be able to keep it by doing an erase install with the write zeros (one pass) option. That will update the hard drive firmware record of bad disk sectors to avoid using. If there are only a few bad sectors, that may let you keep using the hard drive for several more years. An erase install will do just that to your data, through. If you have access to another Mac with either a large amount of free disk space of a DVD burner, you can try using the other Mac as host and the eMac as target in FireWire target disk mode. You can run the host's copy of Disk Utility on the eMac hard drive, and hopefully be able to mount the emac HD so that you can back up the data in your Home directory.

I can't get past the grey apple screen using mavericks

I can't get past the grey apple screen trying to boot up with Mavericks. I had been using Mavericks for about a month (only had issues of freezing occasionally). I read in one of the posts here that I should try holding command R down when booting. I did now I just get a grey screen without the apple. Any advise?
I have a Mac Mini

Hello ther cnickers,
It sounds like the initial install of Mavericks went ok, and you have been using it for a while, but now cannot boot to your desktop and are stuck at a gray screen with an Apple logo. I would recommend a couple of things here:
First, try performing a Safe Boot to see if that will load up for you. If so then leave Safe Boot and restart from the Apple menu to try and get to your deskop:
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key.
The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple logo and the progress indicator (looks like a spinning gear).
After the logo appears, you should see a progress bar during startup. This indicates that your computer is performing a directory check as part of Safe Mode.
To leave Safe Mode, restart your computer without holding any keys during startup.
From: Mac OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/ht1564
If that works fine, I would next also verify and repair your disk if needed.
Disk Utility 12.x: Repair a disk
http://support.apple.com/kb/PH5836
Print this help page so you can refer to it later. (You don’t have access to Disk Utility Help when you restart up your computer in the next step.)In the Disk Utility Help window, choose Print from the Action pop-up menu (looks like a gear).
Choose Apple menu > Restart. Hold down the Command (⌘) and R keys as your computer restarts.When you see a white screen with an Apple logo in the middle, you can release the keys.
Click Disk Utility, and then click Continue.
In the list at the left, select the item you want to repair. (Be sure to select an item that’s indented to the right in the list, not an item at the far left.)
Click First Aid.
If Disk Utility tells you the disk is about to fail, back it up and replace it. You can’t repair it.
Click Repair Disk.If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. Otherwise, you may need to do one of the following steps.
If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. Check each file in the list of affected files. If you can replace a file or recreate it, delete it. If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted. (Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.)
If Disk Utility can’t repair your disk or it reports “The underlying task reported failure,” try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall Mac OS X, and then restore your backed-up data.If you continue to have problems with your disk, it may be physically damaged and need to be replaced.
Thank you for using Apple Support Communities.
Cheers,
Sterling

I am experiencing some major problems with my MacBook Pro. I have had some issues with it turning on/off at random times, but today, when starting, I get the grey start-up screen and a recovery bar. After filling in approx 1/4 of the way, the machine dies

I am experiencing some major problems with my MacBook Pro. I have had some issues with it turning on/off at random times, but today, when starting, I get the grey start-up screen and a recovery bar. After filling in approx 1/4 of the way, the machine dies. After starting it in recovery mode, it will not allow me to download OS X Mavericks- it says the disk is locked. Any ideas? I do not have a back-up and do not want to erase everything before I have explored my options. Help?

try forcing internet recover, hold 3 keys - command, option, r - you should see a spinning globe
most people will tell you to do both pram and smc resets (google) and if you still have issues, either clean install (easy) or troubleshoot (hard)

The Macbook Pro will not start past the grey Apple logo screen? Any help will be most welcome?

The Macbook Pro 13, late 2009 will not start past the grey Apple Logo screen? Any help will be most welcome? Thanks

Have you tried booting with the install disc that came with your computer?
Find it and then run Disk Utility to verify your hard drive. If errors are found, try to repair the disk.
It sounds as if the hard drive might be failing.
Clinton

Unable to restart my intel based iMac, I can't get past the grey screen

I shut down my imac and when I went to restart it, I can't get it to get past the grey screen. I can't even get to the apple screen. I have unplugged everything and nothing works. Help!!

See if this helps:
Gray screen appears during startup

How do I get past the "Connect to iTunes" part of my updated iPod touch?

I updated my iPod touch to the new iOS 5 software. I did all the steps and selected 'Restore from iTunes Backup'. The next screen said 'Connect to iTunes'. I did that and it synced. However, it still says "Connect to iTunes". I ran the iTunes diagnostics and it said that it did sync and there is about half a gig of data on my iPod touch. But I still can't get past the "Connect to iTunes" screen. I even updated iTunes itself, but it still won't work. What do I do to get my iPod back? Surely I don't have to spend $30 plus to get all my apps and songs back. What can I do?
Help!
Thanks,
skiracer204

- Are yu sayin that you keep restoring the iPod but it just keeps telling you restore it again? If so then this sounds like your problem:
Restore loop (being prompted to restore again after a restore successfully completes): This issue is typically caused by out-of-date or incorrectly configured third-party security software. Please followTroubleshooting security software issues if USB troubleshooting does not resolve this issue.
Above frm:
http://support.apple.com/kb/TS3694
Otherwise, please provide more information.

My powerbook won't load past the grey apple logo screen

I had been away on business for a few weeks and yesterday I decided to run the latest updates for my powerbook. In the middle of it the computer froze for what I think is the first time since I bought it 2 years ago. I ended up having to shut the computer down with the power button. When I turned it on it wouldn't and still won't advance past the grey apple logo screen with the progress indicator. It just sits there for hours on end if I let it.
So far I've tried the following, all to no avail.
Booting in safe mode I get the same result.
Zapping the Ram
Resetting the PMU
Reinstalling OS X, during which the computer either randomly shuts down or goes to sleep and then shuts down and requires me to reset the PMU in order to start again.
Running the hardware diagnosis. I did this once and it froze during the logic board test, 1 minute 6 seconds in to it.
Anyone have any ideas that don't involve spending 900 dollars on a logic board? Thanks a lot for any help.

joeuu, thanks for the reply. i checked the airport and the ram and both seem to be seated properly.
i ran the quick hardware diagnosis and it came back showing everything was fine.
when i ran the extended one i got more progress than i did the first time. it got to the RAM diagnosis (about 6:45 seconds in) and then froze - i let it sit like this for an hour and a half to make sure it was actually frozen.
i also tried to run the disc utility from the installation disc and it just sits there with the progress wheel spinning, but nothing else is going on.

How to get past the grey start up screen after mavericks update

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