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17.4.4. Using the findmnt Command

The findmnt command allows you to display a list of currently mounted file systems. To do so, type the following at a shell prompt:
findmnt
For each listed file system, the findmnt command displays the target mount point (TARGET), source device (SOURCE), file system type (FSTYPE), and relevant mount options (OPTIONS). For example:
~]$ findmnt
TARGET                           SOURCE     FSTYPE   OPTIONS
/                                /dev/mapper/vg_fedora-lv_root
                                            ext4     rw,relatime,seclabel,data=o
|-/proc                          proc       proc     rw,nosuid,nodev,noexec,rela
| `-/proc/sys/fs/binfmt_misc     systemd-1  autofs   rw,relatime,fd=23,pgrp=1,ti
|-/sys                           sysfs      sysfs    rw,nosuid,nodev,noexec,rela
| |-/sys/kernel/security         securityfs security rw,nosuid,nodev,noexec,rela
| |-/sys/fs/selinux              selinuxfs  selinuxf rw,relatime
| |-/sys/fs/cgroup               tmpfs      tmpfs    rw,nosuid,nodev,noexec,secl
| | |-/sys/fs/cgroup/systemd     cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/cpuset      cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/cpu,cpuacct cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/memory      cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/devices     cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/freezer     cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/net_cls     cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | |-/sys/fs/cgroup/blkio       cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| | `-/sys/fs/cgroup/perf_event  cgroup     cgroup   rw,nosuid,nodev,noexec,rela
| |-/sys/kernel/debug            debugfs    debugfs  rw,relatime
| `-/sys/kernel/config           configfs   configfs rw,relatime
[output truncated]
By default, findmnt lists file systems in a tree-like format. To display the information as an ordinary list, add the -l command line option:
findmnt -l
For instance:
~]$ findmnt -l
TARGET                     SOURCE     FSTYPE   OPTIONS
/proc                      proc       proc     rw,nosuid,nodev,noexec,relatime
/sys                       sysfs      sysfs    rw,nosuid,nodev,noexec,relatime,s
/dev                       devtmpfs   devtmpfs rw,nosuid,seclabel,size=370080k,n
/dev/pts                   devpts     devpts   rw,nosuid,noexec,relatime,seclabe
/dev/shm                   tmpfs      tmpfs    rw,nosuid,nodev,seclabel
/run                       tmpfs      tmpfs    rw,nosuid,nodev,seclabel,mode=755
/                          /dev/mapper/vg_fedora-lv_root
                                      ext4     rw,relatime,seclabel,data=ordered
/sys/kernel/security       securityfs security rw,nosuid,nodev,noexec,relatime
/sys/fs/selinux            selinuxfs  selinuxf rw,relatime
/sys/fs/cgroup             tmpfs      tmpfs    rw,nosuid,nodev,noexec,seclabel,m
/sys/fs/cgroup/systemd     cgroup     cgroup   rw,nosuid,nodev,noexec,relatime,r
[output truncated]
You can also choose to list only file systems of a particular type. To do so, add the -t command line option followed by a file system type:
findmnt -t type
For example, to all list ext4 file systems, type:
~]$ findmnt -t ext4
TARGET SOURCE                        FSTYPE OPTIONS
/      /dev/mapper/vg_fedora-lv_root ext4   rw,relatime,seclabel,data=ordered
/boot  /dev/vda1                     ext4   rw,relatime,seclabel,data=ordered
For a complete list of available command line options, refer to the findmnt(8) manual page.