ubuntu-mate@ubuntu-mate:~$ sudo ecryptfs-recover-private /media/ubuntu-mate/6707ec67-4a65-45c2-819b-e138a38d9e0d
INFO: Found [/media/ubuntu-mate/6707ec67-4a65-45c2-819b-e138a38d9e0d].
Try to recover this directory? [Y/n]: Y
INFO: Could not find your wrapped passphrase file.
INFO: To recover this directory, you MUST have your original MOUNT passphrase.
INFO: When you first setup your encrypted private directory, you were told to record
INFO: your MOUNT passphrase.
INFO: It should be 32 characters long, consisting of [0-9] and [a-f].

Enter your MOUNT passphrase: 
INFO: Success!  Private data mounted at [/tmp/ecryptfs.e8JVVUL3].
ubuntu-mate@ubuntu-mate:~$ gksudo caja
Initializing caja-main-menu extension
Initializing caja-open-terminal extension