My macbook air wont go past the apple screen with the loading circle.

My Macbook air (Early 2008 edition) Boots up fine, but it stays on the apple screen with the loading circle for a few minutes and then shuts down. I did the Command+v and it always stops at the same spot with:
disk0s2: I/0 error.
(see picture)
I have already tried pretty much all the commands while booting up possible, and to no avail.
Please help.

Sorry for delay been super busy at work - have you tried to boot to your operating sytem disc - by inserting the disc - then power down the unit - then power it up again while holding down the C key until you see the gear start spinning. Once it comes up - go to utilities at the top of the screen - then disc utility - then selcet your hard drive in the left hand pane and then on the right hand pane select first aid and click verify disk in the lower right hand corner - your hard drive may be failing and this test will let you know if that is the case. If so you need to backup your hard drive - replace it and put your data back on the newly placed drive. - please let me know how the verify disc goes

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Hey guys. my macbook air wont get past the screen with the apple on it during start up. how do i fix this? i have a paper saved on my laptop on need to get at it. thanks guy!

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Your boot drive is damaged in some way. If you have an original installation disc, you can boot from that and run Disk Utility. From DU you can select your internal hard drive ("Macintosh HD" is the name Apple puts on it - you may have renamed yours) and select "Verify Disk". If errors come up, try "Repair Disk". If it repairs, then you should be able to restart and boot from it. If it doesn't show up or won't repair, your drive is probably hosed.
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My MacBook Air can't get past the gray screen with the apple logo. What's the fix?

My MacBook Air can't get past the gray screen with the Apple logo, so I can't login. Does anyone know the fix for this?

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 Recovery by holding down the key combination command-R at the startup chime, or from a local Time Machine backup volume (option key at startup.) Release the keys when you see a gray screen with a spinning dial. When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
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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 by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
How to use and troubleshoot FireWire target disk mode
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
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.
Before reconnecting an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 3
Boot in safe mode.* The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
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.
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Step 4
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 5
Launch Disk Utility in Recovery mode (see above for instructions.) 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.
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Boot into Recovery again. When the OS X Utilities screen appears, follow the prompts to 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.
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If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested.

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The only things I did last night:
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Before doing a reinstall, which may not be needed at this point,
Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk.
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Then Repair Permissions.
No need to report any Permissions errors........we all get them.
 DALE

Hi, i have a macbook air and i've been having problems with the camera when i'm using skype. i know im no the 1st one and i'd like to know when apple or someone 'll do something about this.

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Try reinstalling Combo Update.
http://support.apple.com/kb/DL1676
Best.

My macbook pro will not get past the gray screen with the apple logo and a loading bar.

My macbook pro will not get past the grey screen with the apple logo after attempting to load for hours. I have already tried resetting the NVRAM/PRAM and a couple other tricks and no luck. Anyone out there have suggestions for my problem? Help would be much appreciated since i use my computer for everything at school and i am in desperate need to get this baby working again.

You didn't say which OS in your tag, but maybe you might find something here.
http://support.apple.com/kb/TS2570
http://support.apple.com/kb/PH4191
http://support.apple.com/kb/PH7213
http://support.apple.com/kb/HT4125
http://support.apple.com/kb/HT2213

My MacBook Air won't start up. It's completely powered, yet when the white screen with the apple shows up upon me turning it on, it shuts right back off. Can someone help?

MacBook Air won't start up even though it's fully powered. The white screen with the apple logo appears when I turn it on, then it shuts right back down. Can someone help me?

Hey Msazama30,
First, I would start off your troubleshooting by following the steps in this link:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Then, if that doesn't work, try out the information in here:
Step by Step to fix your Mac
https://discussions.apple.com/docs/DOC-3353
Welcome to Apple Support Communities!
All the best,
Delgadoh

My computer suddenly decides not to work and turns on but does not go past the grey apple screen with the loading wheel.. it will not go to my desktop. What should i do?

can somebody please help me fix this issue, i have been sitting at my computer all last night and this morning trying to figure it out. It could be the hardrive or anything really i just need to get it working. Alot of important things that need to be done using this computer and i am freaking out.
My computer suddenly decides not to work and turns on but does not go past the grey apple screen with the loading wheel.. it will not go to my desktop. What should i do?

Put your install DVD into the optical drive (CD/DVD drive) and reboot. Be sure to either use the disc that came with your Mac, or, if you installed a later Mac OS X version from disc, use the newer disc. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option Key until the Install Disk shows up) until the apple shows up. That will force your MacBook to boot from the install DVD in the optical drive.
Or if you are running 10.7 Lion, boot from the recovery partition (Command +R on boot) and use Disk Utility to repair your OS 10.7 partition.
When it does start up, you'll see a panel asking you to choose your language. Choose your language and press the Return key on your keyboard once. It will then present you with an Installation window. Completely ignore this window and click on Utilities in the top menu and scroll down to Disk Utility and click it. When it comes up is your Hard Drive in the list on the left?
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MacBook Pro 2011- Allowed updates to install for iTunes software and Microsoft office (I think). After rebooting, computer wouldn't progress past grey apple screen with loading circle.

I have a MacBook Pro 2011. I allowed updates to install for iTunes software and Microsoft office (I think). After rebooting, computer wouldn't progress past grey apple screen with loading circle. No progression bar ever appeared. It just sits and spins. I tried rebooting with Command + Option + R + P and hearing the chime twice....this did not work.
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macbookpro2011ISU wrote:
I also tried Command +Option+R which took me to internet recovery. From there, I chose reinstall Mac OS X Lion 10.7 but it says my hard drive is locked so I wasnt able to select it.
I you upgraded to OS X 10.8, then use RecoveryHD by holding Command R at boot time (no option) and reinstall OS X over itself that way so your installing Mountain Lion.
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Also you can use that RecoveryHD to format and install OS X onto a external drive, then option/alt key boot from it and access your files on the non-booting internal drive before erasing, reformatting and reinstalling OS X fresh.
Create a data recovery/undelete external boot drive
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My macbook air wont go past the apple screen with the loading circle.

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