Model A1237 or A1304 / 1.6, 1.8, 1.86, or 2.13 GHz Core 2 Duo processor

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New 120 GB Hard Drive not recognized on MacBook Air

Original 80 GB HD was running slow, apple genius bar said it's ready to fail. Bought and installed a new 120GB Hard Drive. Using my Macbook Pro and airport to remote install OS X install disk.

After option button to start up, the new Hard Drive is not recognized, but Mac OS X disk is shown, but after clicking on the install disk, it just keeps spinning to try to boot up and a 0 with slash line, will stay this way for hours.

I have reconnected the new HD drive a few times, still the same problem, even reversed the connection wire.

If i put the old HD back in, the Macbook Air will recognize the drive


Answered! View the answer I have this problem too

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2 Answers

Chosen Solution

I think you are still in netboot mode and the OSX is the one off the MBP. Turn that off or disable sharing and do a safe (shift) boot or a diagnose/restore (Command-D or R) boot on the MBA to see if there was anything installed on your drive.

Work around. Put the new drive in an external case - restore or clone the MBP drive to it.

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thanks, tried to (Command -D or R) boot with the new drive, but all that came up was a blinking (?) file

Have a suggestion on were to buy a external case?


You got me thinking about using my Mac OS X Snow Leopard disk from Remote Install. It worked!



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oh, after searching for hours, I found someone who has exactly same problem. I'm pretty sure I bought the correct SSD.

I have original CD disks of A1304(OS X and Application disk), and Apple Superdrive. would someone tell me a bit more in detail? old HDD get recognized but not this new SSD. I already exchanged this SSD once thinking that it might be faulty.

Thank you

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djhamilton9531 will be eternally grateful.
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