Bonjour macomaniac et merci de ta réponse.
Voici l'affichage de la commande.
-bash-3.2# diskutil ap deleteContainer disk2 "Macintosh HD"
Started APFS operation on disk2
Deleting APFS Container with all of its APFS Volumes
Unmounting Volumes
Unmounting Volume "Macintosh HD" on disk2s1
Unmounting...