1.0TB Hard Drive Won't Boot

[alloutmacstoday]

I just got a 1.0TB WD Scorpio Blue HD for my MacBook Pro (15", mid-2009) (of course I did research beforehand to make sure the 12.5mm would fit), and it does fit. I used Disk Utility to restore my current hard drive to the new WD drive. Then I opened up my computer, and put in the WD, and tried to boot. Unfortunately, it gut stuck on the gray apple screen with the spinner. So I then booted off my install CD, and repaired disk permissions (there were none), and tried to verify disk. However, verify disk froze up. So I then booted up off my old HD (which was in a USB enclosure). After I booted I noticed that my WD hard drive wasn't showing up in disk utility OR system profile. So I took apart my computer again, and made sure the connection was secure, and tried again, but it still didn't appear. The funny thing is it must appear for a couple minutes (because it'll let me attempt to boot to it), but then it goes away. So I'm basically just asking if anyone has any clue what's going on?

Thanks!

 

[simsaladimbamba]

Have you made sure, the new HDD is using GUID as partition map scheme?

How to format a new HDD/SSD to install Mac OS X or make a bootable copy onto​

 

[alloutmacstoday]

Yeah, I was worried about that at first, but it is indeed GUID.

 

[alloutmacstoday]

Also, just to be clear, it DOES boot from a USB external enclosure, it just wont boot when it's internal.

 

[eron]

Boot to the 'install disc'. Go to disk utility, and try verifying, and repairing permissions on the 1TB disk.

 

[alloutmacstoday]

I've done this, and it doesn't make a difference. When I verify it says the disk is okay.

 

[alloutmacstoday]

Just an update: I tried to boot it into Single User Mode, and at first, it said there was a read failure of mach_kernel, so I changed permissions, and got around that. But then when it completed it's stuff, and I typed exit, nothing happened.

Then I tried Verbose mode, and it kept on getting hung up at the line with "USBMSC identifier...". Still, whenever I try to verify the disk (when it's internal, and I'm on the CD), it literally disappears (not just my main partition–the whole disk). And I still cannot boot it. Is there any size limit or something with the MacBook Pro Mid-2009?