Voilà 
Avec 5 ça ne donne rien.
[CODE]
icii:~ JPG$ diskutil verifyVolume disk5
Unable to find disk for disk5
[/CODE]
Avec 3 alors ...?
[CODE]/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 500.1 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +500.1 GB disk1
Physical Store disk0s2
1: APFS Volume Macintosh HD - Data 326.6 GB disk1s1
2: APFS Volume Preboot 80.2 MB disk1s2
3: APFS Volume Recovery 535.9 MB disk1s3
4: APFS Volume VM 12.9 GB disk1s4
5: APFS Volume Macintosh HD 11.1 GB disk1s5
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *960.2 GB disk2
1: EFI EFI 209.7 MB disk2s1
2: Apple_APFS Container disk3 960.0 GB disk2s2
/dev/disk3 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +ERROR disk3
Physical Store disk2s2
[/CODE]
[CODE]
icii:~ JPG$ diskutil verifyVolume disk3
Started file system verification on disk3
Verifying storage system
Performing fsck_apfs -n -x /dev/disk2s2
Checking the container superblock
warning: container has been mounted by APFS version 1933.41.2, which is newer than 1412.141.1
warning: disabling overallocation repairs by default; use -o to override
Checking the EFI jumpstart record
error: (oid 0x19ca742) efi_jumpstart: found zeroed-out block
error: verification/reading of the EFI jumpstart record failed
EFI jumpstart record is invalid
The volume /dev/disk2s2 could not be verified completely
Storage system check exit code is 8
Error: -69716: Storage system verify or repair failed
Underlying error: 8
[/CODE]
Ça ressemble au message reçu avec le SOS de l'Utilitaire de disque
