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Topic # 205589 18-Nov-2016 19:44
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You have to erase each partition, ie bootcamp and the OSX partition individually. When you click on the physical drive their are no security options for passes etc. Only want to do a 3 pass to get it ready for sale.


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gzt

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  Reply # 1673858 18-Nov-2016 20:35
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No idea. Are you booting from a USB stick or external media? I would expect it to be available there.

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  Reply # 1673883 18-Nov-2016 21:44
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You need to boot from a USB installer of OS X or into the Recovery Mode, and then unmount the system partition.  Then you can mess about with it.  


 
 
 
 




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  Reply # 1673906 18-Nov-2016 22:44
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So no good using the disk utility in utilities?

 

I did reboot (cmd +r) and tried that method and still couldnt do anything.

 

USB/DISC boot does nothing different as you cant delete the recovery partion for some reason unlike PCs.


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  Reply # 1674303 19-Nov-2016 19:54
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You can fully remove all partitions on the internal drive by booting from a USB installer of OS X.  You have to unmount everything in Disk Utility first.  You can then run through the installer and it sets up all the partitions it needs again from scratch.  


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