Mac does not boot past white loading screen and disk cannot be repaired?

So when I turn on my Macbook Pro and it does not boot past a white screen with the Apple logo, loading wheel and progress bar. When the progress bar completes, the Macbook shuts down and when I open it again the cycle is repeated. I have opened it in Safe mode and it still showed the same thing. So I opened it in Recovery Mode and had Disk Utility verify and repair Macintosh HD. As it turns out, Disk Utility said Macintosh HD is beyond repair and I need to back up my files and reformat the whole Mac. Unfortunately, I have never used Time Machine since I started using the Mac and I obviously cannot use it now since startup does not even get past the white screen.
How do I reformat the Mac when it does not even go beyond the white screen during startup? My Mac did not come with any recovery or installation disks. Are my unbacked up files gone for good?
Thanks.

PochAstudille wrote:
How do I reformat the Mac when it does not even go beyond the white screen during startup? My Mac did not come with any recovery or installation disks. Are my unbacked up files gone for good?
Since you are able to get into Recovery Mode (Command+R), you can erase/format your Mac via Disk Utility.
Your files/data might be OK. One way to get your data off since you have no back up would be to have another Mac and connect the two via a Thunderbolt cable or even an ethernet cable (I think), then restart your 'bad' Mac into Target Mode by restarting and pressing the T key. Then go onto the 'good' Mac and see if you can copy the data files you want over to it.

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MacBook Pro Will Not Boot Past Apple Loading Screen At All.

I am having a major problem with my MacBook Pro and it just wont boot past the apple loading screen at all
I have tryed al lot of ways to fix this and it just wont work
It does not go into safe mode, it does not boot from cd, the PRAM thing wont work, verbose mode or the comand + s mode wont work
I tryed clean install but it wont boot from dvd, also it will not boot in any other way
It was working perfectly last night and i just shut it down and it does not work know.
My friend was also trying to install Lion from his account but the .dmg for it did not open so we quit and that night i used it for my essay and finished and then i turned it off and next day in the morining it don't work
HELP ME PLEASE

You can take the drive out of the computer, use a $20 IDE/SATA to USB adpater to another Mac
You can see if you can read the drive directly to gain access grab files, run Disk Utility and perhaps it can repair it.
If you can't read the drive then there is DataRescue for a whopping $99 but it will read any deleted (but not scrubbed, encrypted or overwritten) data for recovery. Least that way you can get your files back.
Once your data is off, Zero Erase the whole thing, install 10.6 on it with the other Mac.
When installed in the sick mac, the hardware firmware will read the new EFI firmware, load it and you'll have the boot keys back again ON THE SECOND BOOT, it doesn't load on the first.
https://discussions.apple.com/docs/DOC-3172
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

My macbook will not boot past apple loading screen

Yesterday i turned my computer off before going to class, when i got back i was not able to get past the loading screen. I havent had any problems at all, many people have been saying that their macs start freezing then they have to manually shut down the computer. This usually means the hard drive is bad. but i have not had any of these problems. I am also not able to boot into safe mode. When i go into disk utility my hard drive shows up but is in grey, when i try to repair it it shows that its working but stays in the same spot for hours, i finally shut the computer down after 5 hours of it loading in the same spot. I have tried all of the commands suggested on the forums but have had no luck. I am also running lion but since their is no cd for lion would i use my snow leopard cd or the cd that came with my macbook in 2009. Sorry for the long post, thanks in advance!

You can take the drive out of the computer, use a $20 IDE/SATA to USB adpater to another Mac
You can see if you can read the drive directly to gain access grab files, run Disk Utility and perhaps it can repair it.
If you can't read the drive then there is DataRescue for a whopping $99 but it will read any deleted (but not scrubbed, encrypted or overwritten) data for recovery. Least that way you can get your files back.
Once your data is off, Zero Erase the whole thing, install 10.6 on it with the other Mac.
When installed in the sick mac, the hardware firmware will read the new EFI firmware, load it and you'll have the boot keys back again ON THE SECOND BOOT, it doesn't load on the first.
https://discussions.apple.com/docs/DOC-3172
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

Single-User Mode Copying Files/System Does not Boot Past Apple Logo Screen

I have a Macbook 2.0GHZ, 2GB RAM, that recently tried to download a secuirty and keynot update. Following the download the system will no longer boot past the Apple Logo Screen with the spinning wheel. I do not have access to a OS disk yet or to a firewire cable either. I've have seen posts from others that describe how to use traget disk mode to reinstall the secuirty update manually and then they can boot their computer. Safe mode will not work. I did boot into single-user mode and run the disk utility there and it says my HD is OK. Since I do not have a firewire or an OS Disk, I am wondering if there is a way to copy those files i need to a USB pen stick then install them onto the computer via single-user mode, considering this is the only way I can boot and manipulate the machine at this time. If this is not possible please let me know so I can find a way to scrounge up a firewire cable or disk. Thank you in advance for any assistance.
Ted K

Thanks to Limnos and BDAqua I know you guys have helped others with these kind of problems from the other posts I read. I just want to list what I did exactly in case anyone wants to try to do this with a usb drive or does not have access to a boot disk or firewire cable.
1: Install security update on a pen drive
2: Boot in single user mode, CMD-S on startup
3: /sbin/mount -uw /
4: mkdir /Volumes/usb (usb can be any name, name of usb drive or anything you want)
5: ls /dev (you need to get the drive listing for the usb drive to mount it appropriately, it should be disk#s# but this is close to what the HD and Cd drives are listed as so you may need to list once before you put the usb stick in and once ater. I had issues inserting the usb drive in single-user mode and it would freeze up the root drive)
6: /sbin/mount_msdos /dev/disk1s1 /Volumes/usb (this mounts the usb drive, i had to use msdos because of how my usb drive was formatted, you may need to check your usb drive format, hfs is the apple format for usb drives but it did not work for me)
7: cp /Volumes/usb/SecUpd2009-001Intel.dmg (this copies the files from the usb drive to the root drivel, at this point you no longer need the usb drive)
8: hdiutil mount /SecUpd2009-001Intel.dmg (this mounts the disk image)
9: cd /Volumes/"Security Update 2009-001" (after i mounted the image this is how it appeared in the Volumes directory, you might need to do ls /Volumes to get the name, the quotes are important to get the whole file directory changed)
10: installer -pkg SecUpd2009-001Intel.pkg -target / (this installs the acutal update, i used the SecUpd2009-001Intel.pkg and it worked though I think you might be able to use "Security Update 2009-001" with quotes as well.)
11: reboot
i hope this helps anyone looking to do this. Thanks again to those who helpes and all the other posts that had information that helped me identify and then fix my issue! I still love my mac.

HT4061 I have an iphone 5s, does not boot, blinking white screen with black logo, when trying itunes restore from mac and pc, error code 4013 which is usb error, any ideas?

I have an iphone 5s, does not boot, blinking white screen with black logo, when trying itunes restore from mac and pc, error code 4013 which is usb error, any ideas? Does a totally dead battery have that effect? I have had it plugged in to a computer overnight, but maybe does not charge when totally dead?
Please help, thanks in advance all1

Hi eggroll77,
Welcome to Apple Support Communities.
That alert codes does suggest there is a USB related issue. If you haven’t already, try the troubleshooting suggestions in the article linked below.
iOS: Restore errors 4005, 4013, and 4014
I hope this helps.
-Jason

IMac Does not boot past Gray Screen

iMac does not boot past Gray Screen. 2008 24" Intel iMac running Mountain Lion with 1TB hard drive.
Problem started yesterday while I was web surfing, and my iMac frooze and shutdown. I rebooted and could only get as far as the gray screen.
On bootup the following things happen:
Startup tone
Gray screen with Apple, and gear spins below Apple.
Once the gear stops spinning, nothing happends.
Troubleshooting steps I have tried:
removed all devices connected to iMac and rebooted, but same symptons occur.
booted into Safe mode and run disk utilites.
     Disk Utilities found no errors on the drive, but did find two permission issues that it was able to fix.
          First permission issue:
                   "Group differs on library; Should be 0; group is 80"
          Second permission issue:
                    "Permissons differ on library; Should be drwxr-xr-x; They are drwxrwxr-t"
Disk Utilities says it fixes these issues and then I reboot, but get the same problem.
I reboot back into Safe Mode and run Disk Utilities and it discovers the same problems listed above with Permissions. It says it fixes them, I reboot, but the same problem occurs. Its as if we are stuck in some sort of loop process.
Booted into Single User Mode and ran the following command:
     /SBin/fsck -fy   it reports back, Volume Apprears to be ok.
I reboot, same issue !
Performed SMC Reset, Rebooted, same issue
Performed PRAM Reset, Rebooted, same issue.
Booted into Recovery Partitioin (Command R) and ran disk utilities. It found the same permission issues listed above. It fixed them. I rebooted. Same problem still.
While in safe mode, I preformed a full time machine backup.
I am out of ideas. Any help would be greatly appreciated.

Hello,
I reboot back into Safe Mode and run Disk Utilities and it discovers the same problems listed above with Permissions.
You can ignore repeated "fixes" it's not really a problem, if it says completed repairs that's all that's needed.
Luckily it boots in Safe Mode, here's basically the steps to try to find out what it is...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons
Though I'm suspecting some corruption to your OS at the moment.

Mac will not boot up, white screen with turning gear for hours on end

mac will not boot up, white screen with turning gear for hours on end

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
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. The easiest way to deal with the problem is to boot from an external drive, or else to 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 boot 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 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.
Step 7
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.
Boot in safe mode. Note: If FileVault is enabled, 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 8
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 9
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 10
Repeat Step 9, 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 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 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 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.

Hi im new apple user ..Bought a mac 3 weeks before my mac does not show serial number on screen .Also I am unable to sign in imessage n facetime it gives network error like .! What can be this issue n how to solve it??

hi im new apple ,ac book pro user ..Bought a mac 3 weeks before my mac does not show serial number on screen .Also I am unable to sign in imessage n facetime it gives network error like though i can access web site n etc .! What can be this issue n how to solve it??

Hi,
If the machine is brand new I don't see why the serial Number is missing (it is entered on to a special chip at the factory)
However if the machine is a return and has been refurbished then the Logic/mother board may have been changed and someone forgot to put the info back to the new board.
for the Points
7:44 pm Thursday; January 16, 2014
 iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Macbook does not boot. stuck at grey screen. have tried single user mode, but text stops at AppleIntelCPUPPowerManagement: initialization complete, without anymore prompts. no

macbook does not boot. stuck at grey screen. have tried single user mode, but text stops at AppleIntelCPUPPowerManagement: initialization complete, without anymore prompts. no hash key appears that will allow me to type in: fsck -fy
have my trials for IB in one week and my history notes are all on my hard drive, that has not been backed up. help please =(

macbook does not boot. stuck at grey screen. have tried single user mode, but text stops at AppleIntelCPUPPowerManagement: initialization complete, without anymore prompts. no hash key appears that will allow me to type in: fsck -fy
have my trials for IB in one week and my history notes are all on my hard drive, that has not been backed up. help please =(

I have a mac air and it says my star up disk is full, now when I log in it just has a blank white lit screen and I cannot go further

After logging in, theres just a blank white backlit screen and I cannot go further. It also has been showing on the screen
that the startup disk is full. I already tried diagnostics and it says hardware is fine.

You will have to erase your drive because it has a corrupted directory resulting from allowing the drive to become full.
Install or Reinstall OS X from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard 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.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
      the Security button and set the Zero Data option to one-pass. Click on
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4. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
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Ibookg4 will not go past the grey screen and will not accept a disc

my ibook will not go past the grey screen and will not accept a disc

Have you tried starting up in Safe Mode? If not, I suggest that you give it a try. This will take quite awhile longer than a normal startup because it does a file check and repair of the hard disk.
If this works you will see your normal desktop. Once completely started up in Safe Mode, try to restart normally, and go to Applications > Utilities > Disk Utility. Click on the top hard drive icon in the left sidebar and note the S.M.A.R.T. status at the bottom right of the pane. What does it say?
Select the named boot volume in the left sidebar, ("Macintosh HD" unless you've renamed it). What is the hard drive capacity and how much space remains available on it? Repair permissions on it.
See if you are able to do a little hard drive maintenance to help things out.

My I Mac does not start properly without pressing option and apple keys ,and it freezes

My I Mac does not start properly without pressing option and apple keys ,and it freezes

Try any of the following:
http://support.apple.com/kb/HT1379 Resetting your Mac's PRAM and NVRAM
Disconnect all devices from the computer then do the following:
Boot up from your Snow Leopard Install DVD while holding down the "c" key.
Select the language you wish to use, and then choose "Disk Utility" from the menu bar.
Your HD should appear in a panel on the left hand side of the window which opens. Select it and then click on the "repair disk" button in the right hand section of the window.
Once this process has been completed restart your computer and repair permissions directly from Disk Utility.
If Disk Utility is unable to complete the repair, you will need to use a stronger 3rd party utility like DiskWarrior, Techtool PRO (not Deluxe) or Drive Genius.
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i'm going to try to see if a different ac adaptor will work hopefully that solves the issue.

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white glowing screen and I cannot turn off and or reset. Just glows.

Try the remaining actions of:
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- 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.
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Apple Retail Store - Genius Bar

I tried to update my iphone 4 to i07 but it's now just stuck at half way on the loading screen and I cannot get it to do anything

So like a moron, I made the mistake of finally updating my Iphone 4's OS to the new one that Apple has been bugging the crap out of me about for months now. The problem is, my phone is now stuck on the loading screen and I cannot get it to do *ANYTHING*. It won't connect to my PC, Itunes won't let me get on it without the pin lock being entered on the phone which I CANNOT do because the phone is stuck on the update screen.. and Apple won't talk to me for help because I cannot get them the serial number which I CANNOT do because my phone is stuck on the update screen!
Is there no way to just take the battery out or something? I looked for screws but they seem to be proprietary (because of course they are, because Apple) How do I force it to get off the update screen?!

If you open it to take out the battery from the iPhone then you forfeit all service for whatever reason from Apple in the future.
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Mac does not boot past white loading screen and disk cannot be repaired?

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