D 
		
				
				
			
		oui mais j'ai fait : diskutil erasedisk jhfs+ GPT disk21 c'est bien pour formater le DDE ?Yes sir.
Il y a des données sur ce DDE?
-bash-3.2# diskutil ap list
APFS Container (1 found)
|
+-- Container disk2 BCDAB4C8-DECC-4802-A497-2844F4BF25C8
    ====================================================
    APFS Container Reference:     disk2
    Capacity Ceiling (Size):      250790436864 B (250.8 GB)
    Capacity In Use By Volumes:   123949502464 B (123.9 GB) (49.4% used)
    Capacity Available:           126840934400 B (126.8 GB) (50.6% free)
    |
    +-< Physical Store disk1s2 4F717BBA-8202-42E2-B66F-866C9D7643CC
    |   -----------------------------------------------------------
    |   APFS Physical Store Disk:   disk1s2
    |   Size:                       250790436864 B (250.8 GB)
    |
    +-> Volume disk2s1 831121D9-B488-3B1F-BAF8-B64D501BAAA8
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk2s1 (No specific role)
    |   Name:                      Macintosh HD (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         123270606848 B (123.3 GB)
    |   Encrypted:                 Yes (Locked)
    |
    +-> Volume disk2s2 CDED3B35-C5CA-4388-90C9-49F882DA8B72
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk2s2 (Preboot)
    |   Name:                      Preboot (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         20623360 B (20.6 MB)
    |   Encrypted:                 No
    |
    +-> Volume disk2s3 76C77AD9-C438-4BF4-ACF5-3F076AC2D8AD
        ---------------------------------------------------
        APFS Volume Disk (Role):   disk2s3 (Recovery)
        Name:                      Recovery (Case-insensitive)
        Mount Point:               Not Mounted
        Capacity Consumed:         519933952 B (519.9 MB)
        Encrypted:                 No
-bash-3.2#-bash-3.2# ls -l /Volumes
total 8
drwxrwxr-x   4 root  admin  204 Nov  9 13:33 GPT
drwxr-xr-x@ 27 root  wheel  864 Oct 29 23:41 Macintosh HD
lrwxr-xr-x   1 root  wheel    1 Nov  9 12:28 OS X Base System -> /
-bash-3.2# ls -l /Volumes/"macintosh HD"
total 40
-rw-rw-r--    1 root  admin  6148 Oct 27  2016 .DS_Store
d--x--x--x    9 root  wheel   288 Oct  1 08:32 .DocumentRevisions-V100
dr-xr-xr-t@   2 root  wheel    64 Jul  9  2016 .HFS+ Private Directory Data?
-rw-r--r--    1 root  wheel   361 Oct 29 23:30 .IAProductInfo
-rw-r--r--    1 root  wheel   591 Oct 29 23:41 .OSInstallerMessages
drwxr-xr-x    2 root  admin    64 Jun 24  2016 .PKInstallSandboxManager
drwx------@   2 root  admin    64 Oct 29 23:28 .PKInstallSandboxManager-SystemSoftware
drwx------    5 root  wheel   160 Jul  9  2016 .Spotlight-V100
-rw-r--r--    1 root  wheel  2244 Oct 29 23:30 .TALRestoreApps
d-wx-wx-wt@   2 root  wheel    64 Aug 16  2016 .Trashes
drwx------  173 root  wheel  5536 Oct 29 23:30 .fseventsd
drwxr-xr-x@   2 root  wheel    64 Sep 25  2016 .vol
drwxr-xr-x@   2 root  wheel    64 Sep 25  2016 Network
drwxr-xr-x    8 root  wheel   256 Oct 29 23:39 Recovered Items
drwxr-xr-x    5 root  admin   160 Sep 25  2016 Users
drwxr-xr-x@   4 root  wheel   128 Oct 29 23:30 Volumes
drwxrwxr-t@   2 root  admin    64 Sep 25  2016 cores
dr-xr-xr-x@   2 root  wheel    64 Sep 25  2016 dev
lrwxr-xr-x@   1 root  wheel    11 Sep 25  2016 etc -> private/etc
dr-xr-xr-x@   2 root  wheel    64 Sep 25  2016 home
drwxr-xr-x@  18 501   staff   576 Oct 29 23:34 macOS Install Data
dr-xr-xr-x@   2 root  wheel    64 Aug 16  2016 net
drwxr-xr-x    3 root  wheel    96 Oct 29 23:38 private
lrwxr-xr-x@   1 root  wheel    11 Sep 25  2016 tmp -> private/tmp
lrwxr-xr-x@   1 root  wheel    11 Sep 25  2016 var -> private/var
-bash-3.2#Attendons que ça soit terminé.c'est partis !!!!
en tout cas, merci pour le temps passé a m'aider !
Oui tu à raison... o_O il ne se laisse pas faire mon macAttendons que ça soit terminé.
Damned et c'est le dossier Users le + important.
Tu redémarres en mode Recovery, tu unlockes la partition "Macintosh HD" puis tu donnes les retours de :
ls -l /Volumes/"Macintosh HD"/Users
et de
ls -l /Volumes/GPT
-bash-3.2# ls -l /Volumes/"Macintosh HD"/Users
total 0
-rw-r--r--   1 root  wheel    0 Jul 30  2016 .localized
drwxr-xr-x+ 22 501   staff  704 Aug 10 12:01 Benoit
drwxrwxrwt   6 root  wheel  192 Oct 27  2016 Shared
-bash-3.2# ls -l /Volumes/GPT
total 0
drwxr-xr-x@ 2 root  wheel   68 Sep 25  2016 Network
drwxr-xr-x  6 root  admin  204 Nov  9 14:49 Recovered Items
-bash-3.2#-bash-3.2# diskutil list
/dev/disk0 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        +2.1 GB     disk0
   1:                  Apple_HFS OS X Base System        2.0 GB     disk0s1
/dev/disk1 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *251.0 GB   disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:                 Apple_APFS Container disk2         250.8 GB   disk1s2
/dev/disk2 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +250.8 GB   disk2
                                 Physical Store disk1s2
   1:                APFS Volume Macintosh HD            123.3 GB   disk2s1
   2:                APFS Volume Preboot                 20.6 MB    disk2s2
   3:                APFS Volume Recovery                519.9 MB   disk2s3
/dev/disk3 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +5.2 MB     disk3
/dev/disk4 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *320.1 GB   disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:                  Apple_HFS GPT                     319.7 GB   disk4s2
/dev/disk5 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk5
/dev/disk6 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk6
/dev/disk7 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk7
/dev/disk8 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk8
/dev/disk9 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk9
/dev/disk10 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk10
/dev/disk11 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +12.6 MB    disk11
/dev/disk12 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk12
/dev/disk13 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +1.0 MB     disk13
/dev/disk14 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk14
/dev/disk15 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk15
/dev/disk16 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk16
/dev/disk17 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +1.0 MB     disk17
/dev/disk18 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +6.3 MB     disk18
/dev/disk19 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +6.3 MB     disk19
/dev/disk20 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk20
/dev/disk21 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk21
-bash-3.2# 
	