le retour de la commande :
cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdc2 during installation
UUID=ae8ee043-b9c6-4a62-b595-e42af133e9aa / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sdc1 during installation
UUID=EF3B-1088 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
/dev/disk/by-uuid/89e24c09-8537-4f66-be54-6822d1c3a3bb /media/dd1 auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=DD /media/dd2 auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-uuid/4511c238-2a85-4636-90ad-7232526659e2 /media/dd2 auto nosuid,nodev,nofail,x-gvfs-show,x-udisks-auth 0 0
-
mount
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=8146028k,nr_inodes=2036507,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=1634296k,mode=755)
/dev/sdc2 on / type ext4 (rw,relatime,errors=remount-ro)
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)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
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/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=39,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16931)
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-3-28-1804_128.snap on /snap/gnome-3-28-1804/128 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_826.snap on /snap/gnome-calculator/826 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/sqlitebrowser_2696.snap on /snap/sqlitebrowser/2696 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/sqlitebrowser_2689.snap on /snap/sqlitebrowser/2689 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_100.snap on /snap/gnome-logs/100 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_98.snap on /snap/gnome-3-26-1604/98 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/eclipse_40.snap on /snap/eclipse/40 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda1 on /media/dd1 type ext4 (rw,nosuid,nodev,relatime,x-gvfs-show)
/dev/sdc1 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/var/lib/snapd/snaps/gnome-calculator_748.snap on /snap/gnome-calculator/748 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-34-1804_60.snap on /snap/gnome-3-34-1804/60 type squashfs (ro,nodev,relatime,x-gdu.hide)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
/var/lib/snapd/snaps/gnome-3-28-1804_145.snap on /snap/gnome-3-28-1804/145 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_100.snap on /snap/gnome-3-26-1604/100 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_570.snap on /snap/gnome-characters/570 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1880.snap on /snap/core18/1880 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1502.snap on /snap/gtk-common-themes/1502 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1506.snap on /snap/gtk-common-themes/1506 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1885.snap on /snap/core18/1885 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_9804.snap on /snap/core/9804 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_93.snap on /snap/gnome-logs/93 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_9993.snap on /snap/core/9993 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/eclipse_48.snap on /snap/eclipse/48 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_550.snap on /snap/gnome-characters/550 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-34-1804_36.snap on /snap/gnome-3-34-1804/36 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_145.snap on /snap/gnome-system-monitor/145 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_148.snap on /snap/gnome-system-monitor/148 type squashfs (ro,nodev,relatime,x-gdu.hide)
tmpfs on /run/user/121 type tmpfs (rw,nosuid,nodev,relatime,size=1634292k,mode=700,uid=121,gid=125)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=1634292k,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)
-
sudo mount -v /dev/sdb1 /mnt
mount : /dev/sdb1 monté sur /mnt.