Cannot erase or repartition a logical volume

Successfully, I removed my hard drive Macbook Pro and replaced with an SSD.

Now, the original hard drive is in a USB external hard drive case and I'm trying to reformat/erase-it so I can use it for storage.

Utility disc and terminal do not allow me to do it with messages such as:

Error:-69877: could not open the device

OR

Error:-69888: could not unmount disk

OR

Invalid name

Operation failed.

Can someone help me please?

Do you have OS X installed on the internal SSD? If so, then try to start HD recovery open disk utility from the menu, select - entry indented - external volume, click Delete in the toolbar.

Tags: Mac OS & System Software

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