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"A GUID Partition Table (GPT) partitioning scheme is required."

Hi.


Im trying to encrypt an external HDD and it says "A GUID Partition Table (GPT) partitioning scheme is required."


Im aware HDD needs a MAC OS Plus (Journaled), I have check disk Information and its formated as MAC OS Plus (Journaled), so why its keep saying to a GPT Partion scheme is required)


Any idea on how to overcome this?


Thanks!


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Posted on Feb 26, 2015 10:12 AM

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Posted on Feb 26, 2015 11:09 AM

Issue was with partition map, it was Apple instead GUID as listed in diskutil list

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"A GUID Partition Table (GPT) partitioning scheme is required."

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