I have a Mac at our office that won't boot - I don't even see the progress indicator, I just see the gray screen with the Apple Logo, however it doesn't get any further than that. I tried booting into safe mode, and it boot successfully. I've disabled all of the start up items, I've disabled all of the fonts with the exception of the system fonts, and I've also removed the "Extensions.mkext" and "Extensions.kextcache" files.
The machine still won't boot!! I can hear the hard drive turning which is a good thing. I've also tried to boot in single user mode to try and do an fsck -fy, but the machine won't boot into single user mode either.
I've tried reparing disk permissions as well, no luck there.
I've also booted from the OS X installer DVD, and ran Disk Utility to verify the disk and repair it - I simply got a "This disk could not be repaired" message.
What gives?!?!?! Can anyone help me troubleshoot further? Is the drive just fried? Would the drive allow me to boot at all if it was damaged?