My iMac won't boot i get an apple logo

my iMac won't boot i get an apple logo

Hi Paul,
If your iMac won't boot past a grey Apple screen, you may find the following article helpful:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
Regards,
- Brenden

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My iMac wouldn't boot up past the Apple logo, so I tried to boot up from the install disk. Now all I have is the icon for a folder with a ? Mark on it and it is flashing. Now I can't get my disk back out. Any suggestions?

You cna get the disk out by holding the left wired mouse button and/or the option key down on a wired (not wireless) keyboard while booting up the machine and then pressing the eject key when Startup Manager loads.
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Before this happen I had left the computer on without a cable plugged in and so it ran out of power.
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If your iMac came with or is running Lion, startup holding either the Command-R keys or the Option key and select the recovery partition and then use Disk Utility to repair the Macintosh HD.
see > OS X Lion: About Lion Recovery
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As above, my 2.4 Macbook Pro, won't boot past the gray Apple logo and that spinning circle.
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Holding alt allows the start up menu, but then spits the CD out and only shows the Macintosh HD which obviously wont boot!
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Follow the steps at > Mac OS X: Gray screen appears during startup

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Unable to start computer.

I work at an Authorized Apple Reseller and we are having the same problem with one of our showfloor models.
Model: iMac 21.5" (Brand New Core i3, etc)
Problem Description: When you press the power button, you hear the Apple chime and the screen turns on. Instead of booting normally, the screen shows the Apple logo, a spinning 'loading' circle (I call it a ferris wheel), and a loading bar below that. Typically the loading bar is for an EFI Firmware update, but I don't remember updating the iMac recently. Anyways, the loading bar moves once, starts over, and then the iMac shuts down.
Possibly Related Issue: Several days leading up to this issue, the computer was very noisy. It sounded like the hard drive was working overtime on indexing or something, but it ran fine and spotlight wasn't even indexing at all. I walked by it yesterday and noticed it wasn't on. I pushed the power button, and the problem it has now started.
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I had to force the computer to shut down as it refused to force quit.
I Have tried everything I can (Disk Utility - Repairing the disk.. even though the results came up as OK.. Ive re-installed Mountain Lion..) and had no luck!! The grey screen with the Apple logo and spinning wheel just stay there!
Also, it refuses to go into Safe Mode, after holding shift the loading bar only loads up to almost half-way and then it disappears.
Please help!!

I'm having the same problem with my macbook. Apple logo and spinning wheel. I saw a video on youtube that said to reset prm and also to remove both sticks of ram and trying to boot one stick at a time (due to problem possibly being caused by faulty ram) I also tryed booting from disk and booting from safe mode, but everything has failed. All I get is the Apple logo and spinning wheel. Does this mean the hard drive has failed? Or is there another fix that I might try? If it is the hard drive it would suck, but I could go buy another one and replace it, but what would really suck is if it wasn't the hard drive to begin with. Can anyone please help?
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MacBook won't boot - stuck showing the Apple logo and the spinning circle.

Hi.
My MacBook suddenly froze when I was using it today. Displaying the spinning beach ball.
It never came out of it, fan running at max speed, so I tried to force restart it (Control-Command-Power), but that didn't work, so I forced the MacBook off (holding the power button pressed.)
When trying to start the MacBook again it couldn't boot. It kept displaying the grey screen, with the Apple logo and the spinning circle below the Apple logo.
I left the MacBook like this for 10-15 minutes, but nothing happened.
Went on to try the following.:
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*- Resetting System Management Controller (SMC).*
*- Command-S (singleuser boot)*
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= "The volume ** appears to be OK."
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Stops on the following line, and fan ramps up to full speed.:
DNSServiceRegister("ssh.tcp."): -65537)
Force reboot didn't work. Had to force it off.
But, nothing helped.
It simply won't boot.
I also tried to boot Ubuntu 7.10, but it hangs after a short while displaying "Kernel panic".
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:. nattugglan

This happened to me last night.
I was updating my iPod and I got a message saying that it needed to do an update. I installed the update and went on ahead putting new songs on my iPod. When it was finished i ejected as I usually do and closed down.
When I went to check me e-mails this morning the Macbook would not boot. It sticks on the grey screen with the Apple and the spinny disc underneath, then it restarts and sticks on the same screen. The last software to be onstalled was Norton 11 on Monday but I have used the Macbook since. I cannot think why it will not boot.
I am loathed to do a reinstall as I have some things on the Macbook that I had not yet backed up.
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I suddenly had an issue with my Mac Mini. It started to take long seconds, even minutes, to load a software (with the round cursor turning). So I decided to restart it but, how surprise, it got stuck on a blue screen. A few more try to shut down and start again, including with the original install DVD, but it's now stuck on the screen with the Apple logo on white background...
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- tried to start with the original install DVD, not better (DVD is actually now stuck in the Mini, I can't get it out...)
- tried to start it with Command-S, and a Read Error was displayed. See attached picture of the whole text displayed.
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This happened to me last night.
I was updating my iPod and I got a message saying that it needed to do an update. I installed the update and went on ahead putting new songs on my iPod. When it was finished i ejected as I usually do and closed down.
When I went to check me e-mails this morning the Macbook would not boot. It sticks on the grey screen with the Apple and the spinny disc underneath, then it restarts and sticks on the same screen. The last software to be onstalled was Norton 11 on Monday but I have used the Macbook since. I cannot think why it will not boot.
I am loathed to do a reinstall as I have some things on the Macbook that I had not yet backed up.
Any advice?

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http://support.apple.com/kb/TS2570 Follow this article and when it gets to the part where you go into disk utility using your install disc, you'll actually boot up holding down Command and R

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I am having the same problem. The machine loads just to the point when it says "Loading Mac OSX", then its non responsive for hours. The keyboard and mouse still work, but it won't move past that point.
When I try to repair the disk, it gives me an error message indicating that the disk cannot be repaired. I am bad at backing up my files, so I want to avoid a fresh reinstallation.
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I'm at my wits end. My 17" iMac G4 won't boot. I just get the Apple logo, with the spinning progress wheel. I get the same thing when I try to boot in safe mode -- it just sits there with the progress wheel spinning. (I waited an hour, just to make sure.)
Here's what I've tried:
First, I read various articles on the Apple Web site which, among other things, talk about bad fonts, etc. All of the tips rely on safe mode, so I didn't get too far.
I was able to see the iMac HD from my PowerBook by launching it as a target drive, via "t", using a firewire cable. I used Disk Utility to do a repair on the iMac HD. It did find problems (I don't remember what they were), but when I ran it again it said there were no problems with the HD. I can move files from it to my machine, and browsing it looks normal. I looked for non-standard StartupItems, as recommended, but didn't see anything that isn't on the PowerBook.
I also tried putting my install disk in the iMac as it booted. The DVD went in, but had no effect on startup. (Same symptoms.)
Is there any way I can re-install from my PowerBook -- i.e., can I somehow run setup from the PowerBook on the firewire-connected iMac?
I'm not sure of the exact version of the OS it's got, since I can't boot it to see. (Should I look somewhere on the HD for that information?)
Any ideas or suggestions?
Thanks!
iMac Mac OS X (10.4.8)

I am just going to jump on the band wagon (first post). Before I try all the good advise given for "no start"... Does this info point me in a different direction? thanks
IMac (2003) OS 10.4.X troubleshooting. Bill Howarth 14Feb07
· iMac has been running slow. Has not been shutdown/restarted in months.
· Shutdown Computer, Power off, Power on. Get Apple logo and rotating timer. Hangs.
· Power off, power on with mouse down to insert TechTool Pro 4 CD.
· Turn journaling off, perform Directory Maintenance. Locks up at 1971269 of 1971270.
· Start from TechTool CD. Run test on File/Finder info. Locks up at mh1661.html ~ 70% of files tested.
· Start from TechTool CD. Run test on File/Finder info with “repair on” checked. Task completed.
· Run Directory Maintenance. Locks up at 1971269 of 1971270.
· Cannot do e-drive restart in TechTool (greyed out).
· Optimize volume. Task completed.
· Run Directory Maintenance. Locks up at 1971264 of 1971264.
· Try regular startup. Power off, power on (no CD). Get Apple logo and rotating timer. Hangs.
· Shift startup. Get Apple logo and rotating timer. Hangs.
· Startup from Apple Test CD (v2). Passes extended hardware test.
· Startup. Get Apple logo and rotating timer. Hangs.
Arrrrggghhhhh.
iMac Mac OS X (10.4.8)

My iMac won't boot past grey screen and it didn't come with a os x disk

My iMac won't boot past grey screen with apple. I've tried booting in safemode but that didn't help and my iMac didn't come with a os x disk.

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.”
b. 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.
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
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 either of the techniques in Steps 1b and 1c 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 Fusion Drive or 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 10. 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
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 10
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 11
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 12
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 iMac won't boot i get an apple logo

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