Won't boot, stuck at blue screen

I have a problem with my MBP.
I was working on it just like every other day. While listning some music, at some point i lose all sound. Tried the headphones, ... Nothing worked. Next thing i was rebooting the MPB like normal (apple, reboot,...). While it was rebooting, i passed the gray screen with the apple logo and the little spinning thing. After that i got to the blue screen and was able to see the mouse point. But that's it. I'm not getting my login window, no menu, ...
Tried the Leopard disk, and repaired the disk. Repair was ok. Same result
Tried to repair disk permissions. Got all kinds of warnings about SUID-files (usr/libexec/load_hdi , ...)
If you guys want to, i can put a link here to a picture of the whole list of permissions failure...
Tnx for helping me!
Sam

Yes I have, and i couldn't find it.
I haven't got the time for waiting for an answer cause i really need this laptop. While i was going over other topics one told me to reinstall using Archive and Install. I just couldn't wait, so i took the chance.
I thought i was going to lose some stuff, or at least preferences like my Adium look. I put in the Leopard dvd, rebooted with the "c" pressed in and reinstalled it (using the archive and install option). The system rebooted again. I finally got back my login windows, logged in, and EVERYTHING was identical: passwords, preferences, maps, startup applications, even the alarm on my Awaken
Tnx alot for helping me Apple forums!
Sam

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http://support.apple.com/kb/TS1411?viewlocale=en_US#symp1
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Message was edited by: NGrignon

I don't know where is my old PB G4 install disk, so I can't try that.
And, there in lies the solution. Without an OS disc to repair the OS you are up the creek without an OS disc.

Reset PMU and Powerbook won't boot past the blue screen with "Mac OSX" box

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Hello all,
Thanks for all of your great suggestions and info-- here are a few responses.
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2) I get the sense that Disk Warrior or Tech Tool might be necessary, but does it make sense to TRY to do erase-install before buying them? Also, are there any downloadable (for pay) versions of this, or would I need to track down the actual physical disks in Hong Kong or wait for them to be shipped?
3) I haven't yet tried the S.M.A.R.T. test, should I do that first? What is the procedure? Are there any results or ways to know if the drive is too far gone (so that I might instead replace the internal hard-drive) instead of pay 100 USD first to do the disk repair?
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MacBook won't start, stuck on blue screen

My MacBook is stuck on blue screen... forever....
MacBook info:
13.3in, 2.0GHz Intel Core2 Duo, 120GB HD, 2X1GB RAM with Leopard
MacBook was running great until last night... My screen got frozen while browsing, and force quit did not work. So I used power button to turned it off. After that, my MacBook won't boot up anymore... gray screen for about 3min, apple icon screen for 15min, then stuck on blue screen.
I think I've tried everything in here..
http://support.apple.com/kb/TS2570
The only command that I was able to use was "Reset the NVRAM / PRAM", but no change there...
I tried install DVD (came with the MacBook), but I cannot boot with DVD with C button and now the install DVD is stuck....
Is there any way to fix this? My warranty expired already, and I am trying to do everything before taking this to the store...
Thank you.

Thanks Eric.
I have tried that before, but I gave an another try. I held the option button longer this time, until I saw the apple icon. Then cd (DVD?) image came on, so I clicked on it. But after apple icon went away (10 min?), my macbook is again stuck on blue screen. I only saw cd image, and did not see any other drives... Is that a bad sign?
Thanks,
- Hidemi

Imac 8,1 does not boot stuck on blue screen

imac8,1 mid (2008) 20" stuck on blue screen after boot ,It starts in safemode, below is a list of thing i have check so far
1 Apple hardware test (says every thing is ok)
2 Disk utility repair (was successfull)
3 reset PRAM ,SMC
3 Boot for OSX dvd and reinstalled (still only starts in safe mode )
4 boot in single user mode and used fsck ( said every thing was ok)
Yet when i boot i get stuck on a grey/blue screen . it starts in safe mode though, Is there some EFI , firmware restore file that i can install ???
What else can it try????

Please closely follow Apple's advice in Gray screen appears during startup. There are a number of steps to take, be methodical and follow the directions closely.

Mac won't boot, stuck on grey screen if the external hdd plugged in

as the title.
if i plug my external drive, via usb port, the mac won't boot and stuck at grey screen.
unplugging it, the boot process will continue.
the hdd is a LaCie mobile hdd
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Hello jason(?)
It's a LaCie external mobiel hdd, formatted as exFAT. without adapter. take power directly from usb port.
i tested it on my iMac and it works fine. boot up as normal. the only difference is my iMac is on 10.6.8 and my Air is on 10.7.2
I tested on both USB port on my Air and the problem still persist.
the read/write speed is normal (bought it like a day ago).
another thing is I don't have this problem with my external WD drive.
One thing to notice is that, I accidentally left like for like 2-3 mins and it boots. So why the question now is why it's taking so long to boot? normally it just takes <20 seconds. Seems like it tried to boot from the external hdd, doesn't it?

10.6 won't boot; stuck on grey screen

I know this is covered here to some degree, at least, but I haven't been able to find a complete solution/answer, so here goes:
(Please, redirect me to the right source of information, if you know where to look, but not before reading through my post. Thanks! Oh, and I'm no computer expert, so, please, bear with me.)
First of all, my equipment: 17" iMac (serial #: w86262cru2n, emc #: 2104), running (ran?) 10.6 (w/updates)
So, as my title says, my iMac won't boot up and gets stuck on the grey startup screen with the  and the spinning wheel. I can wait and wait, but it never gets past this point.
Here are some things I've tried (nothing has worked so far; "no success" = stuck on grey screen). These steps are also laid out here.
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- Tried Safe Boot (no success)
- Tried booting without connected peripherals (no success)
- Tried alternate outlet (power source) (no success)
- Tried resetting PRAM & NVRAM (no success)
- Tried boot from 10.6 Install Disk (no success)
- Tried replacing original RAM (no success)
- Tried mounting internal drive as Target Disk on my 10.5 MacBook (mounts fine; used 10.6 install disk to verify, says disk is "ok")
- Tried booting to MacBook via Target Disk (i.e. iMac is external drive connected by FireWire) (no success)
- Tried booting from cloned copy of 10.6 disk on an external USB drive (yes, this can be done; I've done it before). This drive was verified "ok" in the same way the internal disk was (see above). (no success)
My next step appears to be to erase the original internal HD and reinstall 10.6. This is where my my ignorance begins to rear it's head. Since I can seem to boot from the iMac, can I do this through my MacBook, viz. mount the original, internal, 10.6 disk on my MacBook and erase it and install 10.6 from there (e.g. through Disk Utility on the 10.5 MacBook)?
Assuming this is possible, can someone step me through the process?
Assuming this last step isn't possible, does this all point to a faulty logic board (sounds like a 'worst case' to me)?
Any ideas? Suggestions?
Many, many thanks, BTW, to all who have posted here and whose help I've availed myself of anonymously many times. And thanks in advance to anyone with helpful ideas.

Try a SMC reset and follow the steps again in the support doc for grey screen
https://support.apple.com/kb/ht3964
https://support.apple.com/kb/TS2570
Your 10.6 install disk seems unreadable if it won't "hold c or option" boot.
Clean the bottom with a alcohol and a very soft cloth and lightly polish until there is no streaks.
Don't touch the bottom or place the disk onto something that will mar the bottom.
If the disk still fails to work, get a replacement, as your going to need it. Get a jeweled plastic case for it.
To make copies of your Snow Leopard install disk, follow these directions.
http://www.walterjessen.com/make-a-bootable-backup-snow-leopard-install-disc/
Once you can hold c and boot off a working 10.6 install disk, simply reinstall OS X without using Disk Utility to Erase and Format the drive, this will replace the OS X installed (and bundled programs) with the disk versions, then reboot and immediately use Software Update to get current.
Your user files, third party programs will remain untouched, except for ones installed in OS X/root system files, those will have to be reinstalled with updated copies.
All else fails:
Grab a copy of your recent user file folders via FireWire target disk mode first or from a hold option bootable clone on a external drive
If you have to completely erase and reformat the drive, reinstall 10.6, there are some things you need to know.
1: The free iLife that came with your 10.5 install disks are not on the 10.6 retail disks
So to get that you need to select the drive makers name in Disk Utility, erase and install with the 10.5 disks first (warning, wipe entire drive)
2: Name the boot drive the same name as before in Disk Utility when formatting.
3: When you go through inital "Welcome to Mac" setup, use the same username as before, (different password)
4: Once in OS X 10.5 stick a working 10.6 installer disk in and upgrade. Once rebooted, immediately Software Update to current version.
5: Install programs from fresh sources next and update.
6: Finally, return the backup copies of your user file folders (Music, Documents, Pictures, etc., not Library) to their respective folders on the new configuration. Because you used the same hard drive and user name as before you should have little complications with things like iTunes song locations/playlists and other hard references to files on your drive.
By installing the OS first, then upgrading, then programs, then finally user files last, keeps the drive optimized as the drive is faster on the data installed first than data installed later. Since users files change size often, having them towards the end where they can grow or shrink keeps the performance of the computer up as much as possible for the OS and applicaitons. Eventually though with OS X updates it can get a bit more defragmented, but not much.

Won't boot, hangs on blue screen

i was doing a software update of a bunch of things and the system ended up hanging for a very long time so i did a hard restart. when i turned it back on it went on very slowly, and got hung up at a blue screen.
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i am now running the disk utility from the start up disk to check the hard drive. its possible this is getting hung up as well.
originally i came to here to see if there was a way to reinstall spotlight from the install disk. but with the disk verify getting hung up i'm a little worried. any thoughts?

You interrupted an installation in progress. This is bad news. You should always give it all the time it needs. Unless you have a Time Machine backup or a clone on an external drive, you might have to reinstall from the DVD. (And if you don't have either, it's time to consider getting some kind of backup. I would never do a major update without knowing I can revert to the backup if necessary.) In !0.6 this should preserve your settings and apps. When you are finished, install the 10.6.4 Combo Update.
http://support.apple.com/kb/DL1048?viewlocale=en_US
But before you do that, you might see if you can get it to boot in Safe Mode by holding down the shift key at startup. This will take much longer than a usual booup; it's doing some checking and repairing, so give it time. If you are able to boot in Safe Mode, repair Permissions from Disk Utility in Applications > Utilities.
And it sounds like the system might have been choking on too many updates. I generally only use Software Update to see what's available. Then, if I want to do an update, I find the standalone at apple downloads and, if I'm doing several updates, I only install them one by one.

Macbook boot stuck on blue screen?

I was updating the Macbook software and restarted the machine like it said so. When it did though, it stayed at the blue screen and wouldn't do anything. I see the mouse and can move it around the blue screen but I'm just stuck there. Any help?

yeah that same thing happen to me. I updated then restarted it and it was stuck at the blue screen with the apple logo and the little spinny thing just kept spinning. Took it to my local apple store and they had to replace my hard drive. Just got it back and am now updating again. Hope your stuff is backed up and best of luck.

Mac pro won't boot: stuck on white screen, HD is new

My HD crashed (I think). Mac pro stuck on white screen for a while, then it goes to a black dos-like screen that says "no disc to boot.
I switched out my HD (I tested on different laptops and it works) and inserted the Mac OSX DVD but now it's just stuck on the white screen. I can't eject my disc either.
I hear 3 VERY small beeps (not the same beeps that states ram is missing/corrupt, which are louder. My beeps are VERY silent).
Fan works
No apple logo, just all white
CMD + R doesn't work, C doesn't work, option doesn't work, shift + ctrl + option doesn't work either
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Thanks!
Macbook Pro Mid 2010, stock OSX (not sure which one that is)

Hey jlee12489,
Thanks for the question, and welcome to Apple Support Communities.
The following article provides troubleshooting steps for a computer that is not starting as expected. It may help to resolve your issue:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Some of the steps included:
- Perform a Safe Boot
- Reset the NVRAM / PRAM
- Start from your Mac OS X Install disc; use Disk Utility
- Check your cables and power source
- Remove third-party RAM and internal hardware
- Perform an Archive and Install installation of Mac OS X
- Perform an Erase and Install installation of Mac OS X as a last resort
Thanks,
Matt M.

Won't boot stuck on white screen

I got an apple question for u before I schedule an appointment at the genius bar...my mid 2007 24" 2.8GHz intel core 2 duo 4 GB 1067 DDR3 iMac running 10.7.2 will not boot passed the white screen. It just keeps on spinning. I had to do a full erase and install and restored from Time Capsule backup. I can boot while holding the option key and it will allow me to boot to the Recovery HD which I ran disk utility and repaired permissions and verified disk, everything came back repaired and "Ok", I reset pram...All that is good but when I try to restart to the Macintosh HD it just spins on the white screen...any suggestions before I bring it in?
thanx

If you can get it to boot once the first thing you should do is backup all your data using Time Machine or better yet create a Bootable Clone using SuperDuper or Carbon Copy Cloner. What Apple says to do to trouble shoot is in Gray screen appears during startup.
I would also recommend running Apple Hardware Test in Extended Mode, if no errors appear the first time run the test 2-3 more times. Each Extended Mode test will take 30-60 minutes.

My MacPro won't Boot - stuck on White Screen - help?

I have a MAC PRO, it was asleep during a power outtage... Now when i try to restart the computer, it never boots - and gets caught in an endless white screen. I've tried to zap my PRAM, still nothing. I just ran out of my apple support, and they are telling me to bring it - is there anything I can do on my own to fix this without having to pay a fortune?

Google - your OEM DVD has AHT on its label
A storm can send too much juice down the modem line and fry the ethernet ports, as long as it is wired, does not need to be running - and sleep is still 'running.'
I consider UPS $200 to be worth investment - as much AppleCare and helps protect the PSU which costs more to replace. My modem had to be replaced (router seems okay) was $79.
CyberPower CP1500PFCLCD PFC Compatible 1500VA 900W Pure Sine Wave Tower UPS
http://www.amazon.com/CyberPower-CP1500PFCLCD-Compatible-1500VA-Tower/dp/B00429N 19W/
How to clone your system:
http://macperformanceguide.com/Mac-HowToClone-backup.html
http://macperformanceguide.com/Mac-HowToClone.html
http://www.macupdate.com/app/mac/7032/carbon-copy-cloner
http://www.macperformanceguide.com/blog/2012/20120711_2-MacPro-internal-clone-ba ckup.html

Upgraded imac to mavericks, now won't boot, stuck on white screen then reboots in a loop

i have a imac that i upgraded to mavericks, it wont boot up now, sticks on white screen for a while the reboots and sticks again, if i reinstall osx will it delete all my data- i tried to start the new install in recovery mode but it kep saying incorrect username and/or password, but i ts not incorrect and when i hit the forgot password link nothing happens

If you can get it to boot once the first thing you should do is backup all your data using Time Machine or better yet create a Bootable Clone using SuperDuper or Carbon Copy Cloner. What Apple says to do to trouble shoot is in Gray screen appears during startup.
I would also recommend running Apple Hardware Test in Extended Mode, if no errors appear the first time run the test 2-3 more times. Each Extended Mode test will take 30-60 minutes.

Won't boot--stuck on grey screen...

...and I think I'm in trouble. Booted up with an external DVD drive and the installation disc, and successfully ran verify and repair disc and permissions. No change. Went to a link provided by a friend, and tried a monitored safe boot. Things progressed until I got here...
system/installatstartup/system/library/privateframeworks/networkconfig.framework /versions/a/resources/version.plist
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Thanks in advance...

If your data is not backed up, you should attempt a data recovery*:
http://www.macmaps.com/backup.html
Otherwise, an archive and install of 10.4 from the retail 10.4 installer disc followed by a combo update from the appropriate 10.4 PowerPC combo update*:
http://www.macmaps.com/jaguarleopard.html
To bring you back where you were in the first place would solve the issue, if you have sufficient hard disk space. See my FAQ* on archive and installs:
http://www.macmaps.com/cleaninstall.html
- * Links to my pages may give me compensation.

MacBook pro with retina won't boot. Dark blue screen on start up. Any thoughts.

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FIxed

Won't boot, stuck at blue screen

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