I am trying to upgrade my hard drive in my mac book pro using the disk utility in an attempt to clone my old hard drive. I can only get so far, just before cloning may start and receive an "error 254" and can go no further. Any idea what this error is?

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I am trying to upgrade my hard drive in my mac book pro using the disk utility in an attempt to clone my old hard drive. I can only get so far, just before cloning may start and receive an "error 254" and can go no further. Any idea what this error is?

I am trying to upgrad the hard drive in my mac book pro using the disk utility in an attempt to clone my old hard drive. I can only get so far throughj the process where its about to start cloing when I get a message " error 254". Any idea what that means and how do I get around this issue so I can use my new hard drive? Thanks for your input.

Vince

MacBook Pro, OS X Mountain Lion (10.8.3)

Posted on May 19, 2013 1:36 PM

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Answer 1

OGELTHORPE

Level 9

57,329 points

May 19, 2013 4:59 PM in response to Vincent173

Has the new HDD been formatted Mac OS Extended (Journaled)?

Is the new HDD as large or larger thatn the internal HDD?

You are using Disk Utility>Restore to clone/duplicate the new HDD?

Ciao.

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Answer 2

Vincent173 Author

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May 20, 2013 4:28 AM in response to OGELTHORPE

The new HDD is larger than the internal HDD.

I am using disk utility>restore to duplicate the HDD

I aqm not sure if it is formatted. I did not specifically do that .

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Answer 3

OGELTHORPE

Level 9

57,329 points

May 20, 2013 4:38 AM in response to Vincent173

Connect the HDD to your MBP. Open Disk Utility>Erase and drag the HDD icon inrt the Name field. The format should be Mac OS Extended (Journaled). Click on the Erase button.

Then try the clone process again. You may use Disk Utility>Restore or a third party cloning application such as Carbon Copy Cloner or Super Duper.

Ciao.

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