Mac pro stuck at apple logo loading screen after software updates

I have an older MBP from 2008 - was prompted to do updates tonight and let it update and restart. It gets stuck at the gray apple loading screen and does nothing else. Have tried resetting PRAM and booting in safe mode. Safe mode works fine but nada on normal. Also tried giving it plenty of time to boot but it continues to load (with the little circle animation under the logo) and nothing ever happens.
Any ideas or suggestions? grateful for any help!! :(

Try starting your computer with the original DVD that came with your Mac Pro then run disk utility on your hard drive to repair it. If you are running Mac OS X 10.7 then start your computer in Mac recovery mode (command + R) then run disk utility on your hard drive.

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IMac 10.5.8 is stuck on Apple logo loading screen , how can I back up my files with an external hard drive ?

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You wasnt to know we didnt live in USA. We will try to get the full retail version of Leopard off the net. We will also phone round the apple resellers.
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Macbook Pro Stuck at Apple Logo (gray screen) and keeps restarting

I've a problem with my Macbook Pro wherein it keeps getting stuck at the Apple Logo upon restarting (no spinning wheel). It eventually restarts itself maybe after 5 minutes but still keeps getting stuck in the grey screen where the Apple Logo comes up.
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Kreis wrote:
Any chance this can be resolved without reinstalling OS X?
Without erasing and installing yes.
Run through this list
..Step by Step to fix your Mac

My Mac Pro Stucks at Apple logo while starting up.

Hi.I have had my MacPro for a year.when i turn it on, it stucks on apple logo and nothing else.if you can solve my problem help me please.

what i am saying is when i just press the power button the Apple logo comes up.while happening this,a load strip shows on the bottom of apple logo.it loads something on the same place for couple seconds and still the same.the gray circle line load indicator which is usual to see while turning on shows up too.the operating system does not start up at all and stuck on Apple logo.couple nights ago, i was testing a wrong article about hardwares and i did not know that the article was wrong.i turned of and on the system 4 or 5 times in a row.the sixth time i turned it on the operating system started up but the finder was not getting open.i waited a long time to see if it is gonna solve the problem by itself but it did not.the seventh time i turned it on as a restart the issue i described happens which is stucking on Apple logo.the is a CD in the disk driver also.that was the whole things about the problem.so sorry for annoying you and appreciate your help.

MacBook Pro was having Finder/Freezing issues, Tried restarting and now it wont reboot. Been stuck at the apple logo/loading screen for over an hour.

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Step by Step to fix your Mac
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I have looked at many posts and nobody has found a solution which suits me.
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You might see if any help is found here:
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Ipad air stuck at apple logo loading

Hello,
I've got an Ipad Air and I just tried to "Erase all content and setting". The device rebooted, and was stuck for a long time on the apple logo with the loading bar.
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FORCE IPAD INTO RECOVERY MODE
1. Turn off iPad
2. Turn on computer and launch iTunes (make sure you have the latest version of iTune)
3. Plug USB cable into computer's USB port
4. Hold Home button down and plug the other end of cable into docking port.
DO NOT RELEASE BUTTON until you see picture of iTunes and plug
5. Release Home button.
ON COMPUTER
6. iTunes has detected iPad in recovery mode. You must restore this iPad before it can be used with iTunes.
7. Select "Restore iPad"...
Note:
1. Data will be lost if you do not have backup
2. You must follow step 1 to step 4 VERY CLOSELY.
3. Repeat the process if necessary.

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Try PRAM reset.
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Best.

My mac is stuck on the grey loading screen?

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Not resetting?
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If not successful try the remaining items of:
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You can try this:
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/sbin/fsck -fy
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If you were successful then:
/sbin/mount -uw /
rm -rf /System/Library/Caches/*
rm -rf /System/Library/Extensions.mkext
rm -rf /Library/Caches/com.apple.ATS
rm -rf /Library/Caches/com.apple.LaunchServices*
reboot
Please write down the above lines exactly so you can enter them correctly otherwise you could cause some serious problems.
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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.) 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, then quit DU and return to the installer.
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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.

Please help me! MacBook Pro stuck on apple logo and spinning wheel

Hi I'm really desperate and need help! My MacBook just stopped loading and would stay on the gray screen with the apple logo and spinning wheel.
I have tried safe mode and it would load a little and stop and then the loading bar would be blank and it would stay like that forever!!
I also have tried doing the single user mode and when I type the fsck - fy it will do a couple more lines then it will say error like a hundred times :(
I did verbose mode and it would just give me stuff that I have no idea what it saying I left on verbose mode for like 5 hours and it would just give me lines of stuff I have no idea what it's saying!
I downloaded lion through apple store so I don't have the disk I only have my snow leopard disk
Please please someone tell me a solution it's my moms laptop and I don't want to get in trouble!

Reboot in recovery mode an possibly repair over the internet.
Command-R to the rescue.
Just hold down Command-R during startup and OS X Recovery springs into action. It lets you choose from common utilities: You can run Disk Utility to check or repair your hard drive, erase your hard drive and reinstall a fresh copy of OS X, or restore your Mac from a Time Machine backup. You can even use Safari to get help from Apple Support online. And if OS X Recovery encounters problems, it will automatically connect to Apple over the Internet.
http://support.apple.com/kb/HT4718

Mac pro boots without apple logo..

Hello,
I have a MAC PRO 2008, and it boots without a grey screen and apple logo.
If I turn on de mac the screen does not go on, after a 10 a 15 seconds the OS is starting up, screen pops on and have no isseus with the MAC pro.
I tries to reset the smc and Pvram, but problem still there.
I tried other videocards, displays, press the reset buttons in de mac etc..
Anybody knows what is the problem of this no boot screen?

you either bought it used with a PC video card or upgraded yourself, as Illaass pointed out, not realizing the difference or what EFI firmware on a graphic card vs not. And some GPUs have a switch to allow legacy PC mode or UEFI.
Oops! see there were updated replies... just ignore.
Try MACVIDCARDS
FAQ about using off the shelf Nvidia: http://forums.macrumors.com/showthread.php?t=1440150
There are other threads, and forums, about using AMD cards.
OSX and Graphics Cards

Macbook Pro Stuck at Apple Logo and Spinning Wheel

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Reinstalling Lion/Mountain 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.
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Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Mac pro stuck at apple logo loading screen after software updates

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