Salut
DD Externe branché puis DD Externe démonté que te renvoie dans le terminal les commandes :
diskutil list
ls -l /Volumes
@+
Ça donne ça :
DD Externe pas branché
Last login: Tue Sep 22 22:39:49 on ttys000
Macintosh:~ sconie $ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS MAC HD 499.2 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
Macintosh:~ sconie$ ls -l /Volumes
DD Externe branché
Last login: Tue Sep 22 22:43:01 on ttys000
Macintosh:~ sconie$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS MAC HD 499.2 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_HFS Backup 499.8 GB disk1s2
Macintosh:~ sconie ls -l /Volumes