bonjour et merci pour le support.
Voici:
sudo lsblk -o size,name,fstype,label,mountpoint
SIZE NAME FSTYPE LABEL MOUNTPOINT
14,8M loop0 squashfs /snap/gnome-characters/317
956K loop1 squashfs /snap/gnome-logs/81
140,7M loop2 squashfs /snap/gnome-3-26-1604/92
42,8M loop3 squashfs /snap/gtk-common-themes/1313
89,1M loop4 squashfs /snap/core/7917
4M loop5 squashfs /snap/gnome-calculator/406
3,7M loop6 squashfs /snap/gnome-system-monitor/100
140,7M loop7 squashfs /snap/gnome-3-26-1604/90
44,2M loop8 squashfs /snap/gtk-common-themes/1353
14,8M loop9 squashfs /snap/gnome-characters/296
219,1M loop10 squashfs /snap/gimp/189
956K loop11 squashfs /snap/gnome-logs/73
4,2M loop12 squashfs /snap/gnome-calculator/501
54,5M loop13 squashfs /snap/core18/1223
218,9M loop14 squashfs /snap/gimp/165
54,5M loop15 squashfs /snap/core18/1192
3,7M loop16 squashfs /snap/gnome-system-monitor/95
149,9M loop17 squashfs /snap/gnome-3-28-1804/67
149,9M loop18 squashfs /snap/gnome-3-28-1804/71
202,9M loop19 squashfs /snap/vlc/1049
89M loop20 squashfs /snap/core/7713
111,8G sda
100M ├─sda1 ntfs System
47G ├─sda2 ntfs Windows
500,5M ├─sda3 ntfs Recovery Image
64,2G └─sda4 ext4 /
931,5G sdb
931,5G └─sdb1 ntfs DiskLocal_1To
5,5T sdc
128M ├─sdc1
5,5T └─sdc2 ntfs DiskData_6To
1,8T sdd
1,8T └─sdd1 ntfs MyBook_2To /media/benat/MyBook_2To
1024M sr0
sudo mount -l
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1942120k,nr_inodes=485530,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=392852k,mode=755)
/dev/sda4 on / type ext4 (rw,relatime,errors=remount-ro,stripe=32650,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1869)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/var/lib/snapd/snaps/gnome-characters_317.snap on /snap/gnome-characters/317 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_81.snap on /snap/gnome-logs/81 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1313.snap on /snap/gtk-common-themes/1313 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_92.snap on /snap/gnome-3-26-1604/92 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_406.snap on /snap/gnome-calculator/406 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_100.snap on /snap/gnome-system-monitor/100 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_7917.snap on /snap/core/7917 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_90.snap on /snap/gnome-3-26-1604/90 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1353.snap on /snap/gtk-common-themes/1353 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_296.snap on /snap/gnome-characters/296 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_73.snap on /snap/gnome-logs/73 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gimp_189.snap on /snap/gimp/189 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_501.snap on /snap/gnome-calculator/501 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gimp_165.snap on /snap/gimp/165 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1223.snap on /snap/core18/1223 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1192.snap on /snap/core18/1192 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_95.snap on /snap/gnome-system-monitor/95 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_67.snap on /snap/gnome-3-28-1804/67 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_71.snap on /snap/gnome-3-28-1804/71 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/vlc_1049.snap on /snap/vlc/1049 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_7713.snap on /snap/core/7713 type squashfs (ro,nodev,relatime,x-gdu.hide)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=392848k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sdd1 on /media/benat/MyBook_2To type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2) [MyBook_2To]
/dev/sdb1 on /media/benat/DiskLocal_1To type fuseblk (ro,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2) [DiskLocal_1To]
