Pas eu de message d'erreur, la commande s'est bien lancée ! Tout est rentrer dans l'ordre. Un grand merci !
Bloc de code:
/dev/disk0 (internal):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme 28.0 GB disk0
1: EFI EFI 314.6 MB disk0s1
2: Apple_CoreStorage Macintosh HD 27.6 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage Macintosh HD 999.3 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s4
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +1.0 TB disk2
Logical Volume on disk0s2, disk1s2
F151F4D3-1088-4F4E-805A-3937024FFF33
Unencrypted Fusion Drive