Currently Being ModeratedDec 30, 2012 4:29 PM (in response to iamjaycee)
If you have booted into single user mode and ran "FSCK", and it will not repair, then it sounds like your hard drive is gone.
You will likely need to replace the hard drive.
Repair coverage? - Check your Service and Support Coverage - https://selfsolve.apple.com/agreementWarrantyDynamic.do. This will also show the make and model of the device.
Currently Being ModeratedDec 30, 2012 5:05 PM (in response to KarenSelena)
Apologies, just ran fsck in Terminal instead of Single User mode... is that still okay? It came up with "The volume Mac OS X Base System appears to be OK" ... but its still not booting?
Currently Being ModeratedDec 30, 2012 8:19 PM (in response to iamjaycee)
if you have backed up your data then do a erase in the disk utility of the full hd and install your os again via the install dvd or via a bootable usb of the os you want
Currently Being ModeratedDec 30, 2012 9:43 PM (in response to chaitanya.ac)
you are correct with just erase the whole disk and installing the operating system back to the computer with dvd or usb. no need to replace the hard drive. I've had this problem before.