I have encrypted disk volume that is in the way and the passphrase is gone.

How can I erase the contents and reuse the disk space?


To delete encrypted volume disk (not your main boot disk)

  1. Open Terminal.app
  2. Unmount disk using

    diskutil unmountDisk force /Volumes/disk2 (substitute /Volumes/disk2 with your disk)

  3. Find disk UUID

    diskutil coreStorage list

  4. Delete disk/volume

    diskutil coreStorage delete [UUID] (substitute [UUID] with your disk's UUID obtained from the previous command)

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