diskutil eraseVolume jhfs+ MacBook disk0s2
	-bash-3.2# diskutil eraseVolume jhfs+ MacBook disk0s2
Started erase on disk0s2 Macbook
Unmounting disk
Erasing
Initialized /dev/rdisk0s2 as a 232 GB case-insensitive HFS Plus volume with a 24576k journal
Mounting disk
Finished erase on disk0s2 MacBook
-bash-3.2#
	diskutil list
	Last login: Mon Nov 19 06:15:02 on console
MacBookansalier:~ Marie$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS MacBook                 249.2 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk1
   1:       Microsoft Basic Data Nouveau nom             700.0 GB   disk1s1
   2:                  Apple_HFS Clone                   300.2 GB   disk1s2
/dev/disk2 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        +4.2 MB     disk2
   1:                  Apple_HFS Installer               4.2 MB     disk2s1
MacBookansalier:~ Marie$
	sudo gpt show disk1
	Last login: Mon Nov 19 17:11:27 on ttys000
MacBookansalier:~ Marie$ sudo gpt show disk1
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
       start        size  index  contents
           0           1         PMBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34        2014        
        2048  1367187500      1  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
  1367189548         500        
  1367190048   586268088      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC
  1953458136           7        
  1953458143          32         Sec GPT table
  1953458175           1         Sec GPT header
MacBookansalier:~ Marie$
	diskutil umountDisk force disk1
sudo gpt remove -i 2 disk1
diskutil umountDisk force disk1
sudo gpt remove -i 1 disk1