la commande mount me retour ceci, il n'y a que mon telephone Xiomi de brancher et reconnu par le protocole mtp
[bertrand@localhost ~]$ $ mount
bash: $: command not found...
[bertrand@localhost ~]$ mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=6079320k,nr_inodes=1519830,mode=755,inode64)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,size=2439852k,nr_inodes=819200,mode=755,inode64)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,seclabel,nsdelegate,memory_recursiveprot)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime,seclabel)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
/dev/sdb1 on / type ext4 (rw,relatime,seclabel)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,nosuid,noexec,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=15049)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime,seclabel)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime,seclabel)
tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime,seclabel)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,seclabel,nr_inodes=409600,inode64)
/var/lib/snapd/snaps/core18_2066.snap on /var/lib/snapd/snap/core18/2066 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/core18_2074.snap on /var/lib/snapd/snap/core18/2074 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_145.snap on /var/lib/snapd/snap/gnome-3-28-1804/145 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/core20_1081.snap on /var/lib/snapd/snap/core20/1081 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/core20_1026.snap on /var/lib/snapd/snap/core20/1026 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_161.snap on /var/lib/snapd/snap/gnome-3-28-1804/161 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1514.snap on /var/lib/snapd/snap/gtk-common-themes/1514 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1515.snap on /var/lib/snapd/snap/gtk-common-themes/1515 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/obs-studio_1251.snap on /var/lib/snapd/snap/obs-studio/1251 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/obs-studio_1258.snap on /var/lib/snapd/snap/obs-studio/1258 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/snapd_12057.snap on /var/lib/snapd/snap/snapd/12057 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/snapd_12704.snap on /var/lib/snapd/snap/snapd/12704 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/whatsapp-for-linux_24.snap on /var/lib/snapd/snap/whatsapp-for-linux/24 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
/var/lib/snapd/snaps/whatsapp-for-linux_25.snap on /var/lib/snapd/snap/whatsapp-for-linux/25 type squashfs (ro,nodev,relatime,context=system_u:object_r:snappy_snap_t:s0,errors=continue,x-gdu.hide)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,seclabel,size=1219924k,nr_inodes=304981,mode=700,uid=1000,gid=1000,inode64)
/dev/sr0 on /run/media/bertrand/photoshop type udf (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,uhelper=udisks2)
/dev/sdc2 on /run/media/bertrand/Win-ntfs-1To type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)
[bertrand@localhost ~]$