oui voila ce que . j'ai eu !
Last login: Tue Jan 7 17:26:20 on console
Macbookairs-MacBook-Air:~ macair$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 83.6 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +83.6 GB disk1
Physical Store disk0s2
1: APFS Volume Macintosh HD 79.6 GB disk1s1
2: APFS Volume Preboot 47.0 MB disk1s2
3: APFS Volume Recovery 1.0 GB disk1s3
4: APFS Volume VM 1.1 GB disk1s4
Macbookairs-MacBook-Air:~ macair$ df -H
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk1s1 84G 80G 1.7G 98% 537331 9223372036854238476 0% /
devfs 189k 189k 0B 100% 640 0 100% /dev
/dev/disk1s4 84G 1.1G 1.7G 39% 1 9223372036854775806 0% /private/var/vm
map -hosts 0B 0B 0B 100% 0 0 100% /net
map auto_home 0B 0B 0B 100% 0 0 100% /home
Macbookairs-MacBook-Air:~ macair$