How do I enable ownership on my external hard drive backup volume so I can copy it to a new external hard drive?

I just got a replacement external hard drive from LaCie. And, I have an older smalller LaCie external back up hard drive that I want to copy the information to the new one. But when I drag the old backup files folder to new one I get this message:The backup can’t be copied because the backup volume doesn’t have ownership enabled. How do I resolve this?

MacBook, Mac OS X (10.6.3)

Posted on Feb 3, 2014 11:33 AM

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3 replies

Feb 9, 2016 12:08 PM in response to carolsh

This is a cold thread, but here is the answer.


Do a "Get Info" on the new hard drive. Open the "Sharing and preferences" disclosure triange, and scroll right to the bottom of the "Get Info" window.

There should be a checkbox that says "Ignore ownership on this volume". Unckeck it. Now you are good to go.


I believe that this checkbox is present only for newly formatted hard drives. Once you have unchecked the box, it will disappear if you close and re-open the "Sharing and preferences" pane. Hence, I can't give you a screenshot.

Feb 3, 2014 11:40 AM in response to carolsh

Try this:


Open the Terminal in your Utilities folder. Enter the following at the prompt:


sudo chown root:admin


Put a space after "root:admin" then drag the Desktop icon of the new drive into the Terminal window. Press RETURN. Enter your admin password when prompted. It will not be echoed to the screen. Press RETURN again.

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How do I enable ownership on my external hard drive backup volume so I can copy it to a new external hard drive?

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