Modelos de MacBook Pro con pantallas de 13"

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Mac Os not booting from Internal Hard Drive


I have a mac book pro 13" Mid 2009 model. The problem that I am facing is that when i switched the internal drive to upgrade the hard drive, both hard drives stopped being recognized, although i can boot up from an external usb the internal drives wont boot up from startup. There is no error message and the apple logo with the spinning wheel keeps spinning. Please help me what to do . I have checked with taget mode and sometimes it works on the other macbook and sometimes is doesnt.

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Solución Elegida

Start up from your system installation DVD "C" key. Go to the second screen pull down menu to Utilities > Disk Utility. Select your drive in the left hand column. Format the drive an give it one partition. Quit Disk Utilities and continue with the system installation. Now restart holding down the Option key and select the drive you installed to. Let us know your results and we can go from there.

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Please tell me how many internal hard drives you have? What optical bay adapter you are using and where these drives came from and if they have been in another machine or formatted elsewhere.


Put the 500 GB in the Mac and use Disk Utilities to give it one partition and select GUID. Let me know if this formats the disk correctly. Thanks


Hi Mayer,

Thanks for your quick response.

Actually when Hard drive is placed internally its not getting formatin mac os extended journaled format. but on other format its formatting easily so iam unable to install MAc os on the same.

And this is also not detecting 500 Gb new hard drive internally.

Every Hard drive and os is working on usb but not internally.

Please help me to resolve the same.


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