-bash-3.2# diskutil list disk14
/dev/disk14
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk14
   1:                        EFI                         209.7 MB   disk14s1
   2:                  Apple_HFS Perrin                  217.9 GB   disk14s2
   3:                  Apple_HFS extreme                 338.2 GB   disk14s3
   4:                  Apple_HFS clone-MBP               432.4 GB   disk14s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk14s5
   6:              Apple_Journal                         536.9 MB   disk14s6
-bash-3.2# diskutil coreStorage convert
Usage:  diskutil coreStorage convert
        MountPoint|DiskIdentifier|DeviceNode
        [-stdinpassphrase | -passphrase [passphrase]]
Convert a regular JHFS+ partition into a CoreStorage logical volume.
The file system must be mounted and resizable (i.e. Journaled HFS+).
Ownership of the affected disk is required.
-bash-3.2# pwd
/System/Library/Filesystems/hfs.fs
-bash-3.2# ls -l
total 96
drwxr-xr-x   6 root  wheel    204 Mar 29 13:37 Contents
drwxr-xr-x  16 root  wheel    544 Mar 29 13:23 Encodings
-rwxr-xr-x   1 root  wheel  47712 Mar 21 15:40 hfs.util
-bash-3.2# ./hfs.util
usage: ./hfs.util action_arg device_arg [mount_point_arg] [Flags]
action_arg:
       -p (Probe for mounting)
       -m (Mount)
       -u (Unmount)
       -M (Force Mount)
       -a (Adopt permissions)
       -J (Make a file system journaled)
       -U (Turn off journaling on a file system)
       -N (Turn off journaling on a raw device)
       -e (Disable use of an external journal on a raw device)
       -E (Enable the use of an external journal on a raw device)
       -I (Get size & location of journaling on a file system)
device_arg:
       device we are acting upon (for example, 'disk0s2')
       if '-J' or '-U' is specified, this should be the
       name of the file system we're to act on (for example, '/Volumes/foo' or '/')
mount_point_arg:
       required for Mount and Force Mount
Flags:
       required for Mount, Force Mount and Probe
       indicates removable or fixed (for example 'fixed')
       indicates readonly or writable (for example 'readonly')
       indicates suid or nosuid (for example 'suid')
       indicates dev or nodev (for example 'dev')
Examples:
       ./hfs.util -p disk0s2 fixed writable
       ./hfs.util -m disk0s2 /my/hfs removable readonly nosuid nodev
-bash-3.2# ./hfs.util -I /Volumes/Perrin/
/Volumes/Perrin/ : journal size 24576 k at offset 0x74678000
-bash-3.2# ./hfs.util -I /Volumes/extreme/
/Volumes/extreme/ : journal size 32768 k at offset 0xd4b000
-bash-3.2# ./hfs.util -I /Volumes/clone-MBP
/Volumes/clone-MBP : journal size 40960 k at offset 0xcd9000
-bash-3.2# diskutil coreStorage convert /Volumes/clone-MBP -passphrase
New passphrase for converted volume:
Confirm new passphrase:
Started CoreStorage operation on disk14s4 clone-MBP
Resizing disk to fit Core Storage headers
Creating Core Storage Logical Volume Group
Attempting to unmount disk14s4
Switching disk14s4 to Core Storage
Waiting for Logical Volume to appear
A problem occurred; undoing all changes
Undoing creation of Logical Volume Group
Switching partition from Core Storage type to original type
Reclaiming space formerly used by Core Storage metadata
Error: -69774: Couldn't bring the new Core Storage Logical Volume online
-bash-3.2# diskutil list disk14
/dev/disk14
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk14
   1:                        EFI                         209.7 MB   disk14s1
   2:                  Apple_HFS Perrin                  217.9 GB   disk14s2
   3:                  Apple_HFS extreme                 338.2 GB   disk14s3
   4:                  Apple_HFS                         432.4 GB   disk14s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk14s5
   6:              Apple_Journal                         536.9 MB   disk14s6
-bash-3.2# diskutil info disk14s4
   Device Identifier:        disk14s4
   Device Node:              /dev/disk14s4
   Part of Whole:            disk14
   Device / Media Name:      clone-MBP

   Volume Name:
   Escaped with Unicode:

   Mounted:                  No

   File System Personality:  Journaled HFS+
   Type (Bundle):            hfs
   Name (User Visible):      Mac OS Extended (Journaled)
   Journal:                  Unknown (not mounted)
   Owners:                   Disabled

   Partition Type:           Apple_HFS
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 FireWire
   SMART Status:             Not Supported

   Total Size:               432.4 GB (432435835392 Bytes) (exactly 844601241 512-Byte-Blocks)
   Volume Free Space:        0 B (0 Bytes) (exactly 0 512-Byte-Blocks)
   Device Block Size:        512 Bytes

   Read-Only Media:          No
   Read-Only Volume:         Not applicable (not mounted)
   Ejectable:                Yes

   Whole:                    No
   Internal:                 No

-bash-3.2# date
Wed Apr 13 01:11:35 PDT 2011
-bash-3.2# ## that is, 09:11 in the UK