My macbook is stuck on grey screen and spining wheel with apple logo

SOURCE: macbook Startup Never ending Apple Logo and Circle

try holding down the alt(option) key when starting up it should give you a list of startup options, it sounds like you dont have a astartup disk (an operating system) installed.

SOURCE: Grey Screen Apple Start up issue

It appears there may be a possible startup item or issue with your firmware, which may be causing this issue, so I am going to provide some procedures in order to help you resolve this gray screen issue. But first, let me help you remove that disc first:

font.f1 {font: 13.0px Myriad Pro} font.f2 {font: 14.0px Myriad Pro} Procedure #1 - Ejecting CD from drive
Here are some steps I recommend you try to resolve the issue with the disc not ejecting properly

• Reboot your Mac
• Hold down your Mouse button(s) prior to the Apple Chime
• Keep holding the mouse button down while your Mac boots up
• The disc should eject before you reach your Desktop
• When it does, simply release your mouse buttons.
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If this does not help resolve ejecting the disc in your Macbook's drive, you are going to have to take more of a command-line approach:

font.f1 {font: 12.0px Helvetica} -EJECTING DISC USING TERMINAL-

From your Desktop:
•Click anywhere on a blank space on your desktop. Now you should see Finder listed near the Apple menu icon.

• From the Finder menu, click on Go, then Utilities from the
drop-down menu. This will take you to your Utilities folder.

• Locate and open the Terminal utility
• At prompt, type: drutil eject

• Now press the Return key on your keyboard

(NOTE: If you have a CD/DVD drive with a tray, type: drutil tray open press the Return key on your keyboard )en
• This command line should eject the disc from the drive, unless there are mechanical issues with the drive within your Macbook.
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At this point the disc should be ejected from your Macbook. If this is the case, then I will now need to direct you back to Safe Boot mode, but with a little twist, from what you may have tried when you last when to Safe Mode:
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I am going to have you take your Mac into Safe Mode to see if we can't remove a possible folder(s) that may be affecting your Mac's start up function.

Try these steps:
-SAFE BOOT MODE-
• Reboot your Mac
• Upon restarting your Mac, press the Shift key.
• Hold the Shift key until you see a White Screen with Gray Apple icon and eventually a spinning gear.
• When you see the Spinning gear, release the Shift key.
• Allow the Mac to continue booting up. Also this may take a little while.
(NOTE: this may take anywhere from 5 to 15 minutes to load to the Safe mode screen depending on the performance of your Mac, but if it exceeds this time, shutdown your Mac and try just once more. It may have just frozen up the first time around for you.)
• You are going to enter the Safe Mode (which looks like your main desktop environment the only difference is certain start up items are disabled.)

• Once within the Desktop in Safe Mode
• From the Finder Menu, click Go> Go to Folder
• Type in this line: /System/Library/StartupItems
• This path, is going to take you to the System Library folder which has all of your Mac OS X Startupitems.
• Remove all of those folders to the Trash.

*Reboot your Mac normally and see if you can access your normal User desktop environment.

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Post back to me, if these particular Safeboot procedure does not help. Thanks!

Regards,

-Mactechtrainer

SOURCE: help with my macbook air, it shows only the apple

Power the machine down. Press the power button to turn it on. After you hear the startup chime, press and hold the shift key. This will trigger an extended file system check and a safe boot. Continue holding the shift key down until you see the spinner, then you can release it. If it doesn't boot completely after this, you will have to bring it in to an Apple-certified tech for repair.

SOURCE: Hello, since yesterday my macbook pro is frozen,

Take the 2 RAM chips out and make sure they are compatible with your computer and make sure the RAM chips are not broke or defective. Re-insert new RAM chips and make sure they are firmly inserted in their bays. Also, install disc 1 of your 2 disc gray set and hold down C key to boot from disc. Then click on tab for install English. Then go to the top of the screen to utilities and click on disk utility. Now on the left side of screen select your hard drive and then at bottom middle of screen select repair disc. Then when that's done select repair hard drive. Now quit the disc and choose restart from hard drive. See if that don't help ya any. Also, could be bad boot sector in which you will have to save all your data and re-install the operating system. If that don't work, then look into getting a new hard drive and then re-install the operating system. Take your computer into the Apple store and have the Apple dorks look into it if your still under warranty, because you just dropped down some serious cash on this machine.

SOURCE: when i turn on my

did you install anything new or damage your comp?