Why does my Mac boot with a Grey screen and a globe?

Usually means you don't have a bootable system installed so the OS is looking for a bootable system on the network.
Does the computer eventually start up shortly after the globe appears? If so then open Startup Disk preferences, select your boot volume and click on the Restart button. If this is not the case then you need to reinstall Snow Leopard.
Reinstall OS X 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/.

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Why does my mac boot into a black screen followed by a bad sound?

If I start my iMac my Display doesn't work and after some time there is a bad sound.
When I press cmd+alt+P+R and boot my Mac everything is alright.
My brother tried to install Ubuntu on the iMac.("without rEFIt")!
What can I do?

What does the sound sound like? Is it three beeps? Does it sound like a small "bip" noise only when you immediately press the power?

HT4904 I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple
logo appears.
5. Wait for installer to finish loading.

Why does my iPod Touch have a white screen and how do I get rid of it?

Why does my iPod Touch have a white screen and how do I get rid of it?

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Why does my Mac stay on the white screen when I turn it on?

Why does my Mac stay on white screen when I turn it on?

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 boot failure is to secure your 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 your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into 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, boot 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
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 4
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot 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.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 5
Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot 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 your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot 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, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 6.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot 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 reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 6
Launch Disk Utility in Recovery mode (see Step 1.) Select your 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 reboot as usual.
Step 7
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 8
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 9
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. 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 boot 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 10
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.

Why does my mac start to a blue screen

Why does my mac go straight to a blue screen on start up?

Start into Safe Mode. http://support.apple.com/kb/HT1564
http://support.apple.com/kb/PH4373

Ipod with a grey screen and beeps

I tired to change cases and when I tired to turn on the ipod, it had a grey screen and beeps twice every two minutes. I need help.

Is the screen suck ON with the gray screen? And reset does not work?
If so, I would disconnect from power and let it sit until it powers OFF by itself. Then try starting it or connecting it to power (if the battery is drained).

Trying to rebuild my iphoto library from time machine backup and it still says 0 restored with a grey screen and the circle. How can i restore my library?

I just bought a new Macbook pro and i tried to rebuild my iphoto library from a time machine backup on an external hard drive. Even after pressing command+option when starting iphoto and selecting rebuild library from automatic backup, it still doesn't work with the grey screen with the white circle and a little window that says 'rebuilding library: 0 versions restored'. I also tried to make a copy of my iphoto library but that did not work either. how can i restore my iphoto library or at least gain access to my photos?

Your question is not clear
Rerairing or rebuilding the iPhoto library never involves using Time Machine in any way
TM is a totally seperate program and you can "restore" a file (including the iPhoto library) from the past using TM - you launch TM and go back to the time you want and select the file (or folder or package) you want and click restore - it probably is best to keep the current one until you are sure everything is good
LN

When i boot my mac it opens with a grey screen and the wireless keyboard, mouse illustration and won't do anything elsens,

When I turn on my iMac (27" intel) all I get is connect my wireless keyboard and mouse on a grey screen. The mouse will connect (sometimes) after I wiggle it a bit, but nothing from the keyboard. After a few minutes the disk utilities box comes up. I ran permissions and repair permissions, verify and repair on my computer and it tells me everything is ok. But it won't let me past this screen. Any suggesions? Help!?!

Hi Grace Be,
Welcome to the Support Communities!
The articles below may be able to help you with this. I've summarized some of the key points below for you. Click on the links to see more details and screenshots.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Disconnect, test peripheral devices and network cables
Note: "Peripheral devices" refers to external devices other than what came with your Mac, such as hard drives, printers, or hubs that you connect via a USB or FireWire cable.
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Disconnect all peripheral devices such as external hard drives or printers (leave only the display, a keyboard, and mouse connected).
Disconnect any Ethernet cables.
Start up your Mac.
If you can start up this way, one or more of your peripheral devices (or installed software related to the device) is probably causing the gray screen issue. Connect one device, then restart your Mac to test for the issue. Repeat the process until you locate the device at issue. Check with the manufacturer of the device for support or possible software driver or firmware updates that may be available for the device. Try a different cable with the device if possible (such as a different USB or FireWire cable).
If you are using a desktop Mac with a third-party keyboard and/or mouse device, and the issue still occurs, try starting up with an Apple keyboard and mouse connected instead. Try starting with no keyboard and mouse connected, then connect them after start up. Also, try a different USB port on your Mac.
If the gray screen issue persists with no devices connected, go to the next section (with the peripherals still disconnected).
Perform a Safe Boot
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Start your Mac, then immediately hold the Shift key. This performs a Safe Boot. Advanced tip: If you want to see the status of a Safe Boot as it progresses, you can hold Shift-Command-V during start up (instead of just Shift).
Note: A Safe Boot takes longer than a typical start up because it includes a disk check and other operations.
If your Mac starts up as expected, immediately try restarting.
If the Safe Boot does not work, or the restart after a successful Safe Boot does not work, go to the next section.
Reset the NVRAM / PRAM
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Reset the NVRAM / PRAM.
I hope this information helps ....
Have a great day!
- Judy

Help!! - I am faced with the grey screen and spinning gear!!

Hi guys
I have an intel-based imac and when i performed routine updates on it, it took long to switch off so i manually turned it off with the button. Normally this gives no problem, but this time it refuses to go past the grey screen with the apple logo and spinning gear. I have tried many of the fixes but to no avail...does anyone have any step by step instructions/suggestions...I cant get to any of my uni work. I tried disk utility and it said my hard drive is fine, yet when i restart im back to the grey screen!
Please help, I cant access any of my files and cant risk having it wiped!!!
Thanks in advance - sorry if this might be in the wrong section!

I had the same issue, and I had recently backed-up my files (mostly because the mac was acting wonky before this even happened), so I did an erase and install. Then I ran through all the software upgrades and installed all of them. When I did a required restart (for the Mac OS X 10.4.11 update) it went BACK to grey screen with spinning ball. Talk about frustrating!
I think there is something weird going on with the iTunes update and the Mac OS X 10.4.11 update. But one can't be used without the other. So I'm not sure how to update everything safely and get an up to date system, without having all the problems I had before. So now I'm using Mac OS X 10.4.7 so I can have a stable system to do my work, but I can't run iTunes 7.0. I'm too scared to update OS b/c I can't waste another day re-installing everything (for like the third time).
I'm a pretty new Mac user (year and half) so this may sound really dumb, but any suggestions would be very welcomed. I may start a new thread instead of hijacking this one...

My MacBook pro only boots to a Grey screen and then tells me to restart

I start my MacBook pro up the apple logo comes on then a grey screen comes down from the top and it say hold down power botton for 7 seconds and restart but when I do it does the same thing all the time now

Your Mac is suffering from kernel panics.
I would suggest booting from the Install DVD and running AHT.
Allan

TS1702 Why does my mac open with iphoto when I connect my iPhone

When I connect my iPhone to my Mac Mini the Mini opens automatically to iPhoto and just sits with the wheel spinning. I have to force quit to exit. My mini is set to automatically open in Itunes when conncected to an iPhone. Not happening. Any thoughts?

iPhoto SHOULD open if you have photos in the Camera Roll, just like it would with any digital camera.
For the problem with it not appearing in iTunes see: http://support.apple.com/kb/TS1591

Why does my Mac mini with lion shutdown after 5 minutes when I don't log in?

This happens when I power up the mini but don't log in. I have set all the power saver options to never sleep and
unchecked all the other options.

Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964

Why does my Mac Pro now crash when screen saver starts?

I've upgraded my Mac Pro Mid 2010 (5,1) from 10.8.5 to 10.9.3 and I have a problem. When I use one of the screen savers without a photo, the screen saver works fine. But when I try to point it to one of my existing photos on the machine, it hangs when the screen saver kicks in and I have to force quit to get it running again.
I believe this must have to do with some permissions issues with where my image files are, but am not sure how to fix it.
Anybody else have this problem?
Thanks....

But does it then come fully awake? My MB Pro comes on with out of focus screen as if in a fog but once it comes awake it clears up, there is a progress bar at the bottom showing the progress from sleep

Why does my Mac Book Pro wifi signal come and go constantly?

The wifi icon at the top of the computer screen shows that I am connected but when I click on it, it keep going from "On" to "Looking for networks". I just bought a upper end wireless router after the Cable repair guy said it was the wireless router. It still does it. The computer is noticeably faster when I plug directly into the router.
Help!

Hi evilrussell,
If you are having issues with wifi connectivity on your MacBook Pro I would suggest using the steps in this article to help troubleshoot -
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Thanks for using Apple Support Communities.
Best,
Brett L

Why does my Mac boot with a Grey screen and a globe?

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