Merci pour ta réactivité
machin@Machine2Machin:~$ sudo lsblk -o size,name,fstype,label,mountpoint
[sudo] Mot de passe de machin :
SIZE NAME FSTYPE LABEL MOUNTPOINT
156,7M loop0 squashfs /snap/gnome-3-28-1804/110
956K loop1 squashfs /snap/gnome-logs/81
1008K loop2 squashfs /snap/gnome-logs/61
89,1M loop3 squashfs /snap/core/8213
44,2M loop4 squashfs /snap/gtk-common-themes/1353
152M loop5 squashfs /snap/citra-mts/102
4M loop6 squashfs /snap/gnome-calculator/406
14,8M loop7 squashfs /snap/gnome-characters/367
42,8M loop8 squashfs /snap/gtk-common-themes/1313
3,7M loop9 squashfs /snap/gnome-system-monitor/111
54,5M loop10 squashfs /snap/core18/1265
89,1M loop11 squashfs /snap/core/8268
54,6M loop12 squashfs /snap/core18/1279
14,8M loop13 squashfs /snap/gnome-characters/296
149,9M loop14 squashfs /snap/gnome-3-28-1804/67
4,2M loop15 squashfs /snap/gnome-calculator/544
3,7M loop16 squashfs /snap/gnome-system-monitor/100
465,8G sda
264,2G ├─sda1 ext4 /
94,1G ├─sda3 ext4 /media/machin/9ea52f6c-d6fd-4e55-bca1-968828053e34
3,9G └─sda5 swap
1024M sr0
je ne cherche pas a récuperer le contenu , juste la rendre a nouveau utilisable