Provided by: mount_2.20.1-5.1ubuntu20_amd64 bug


       findmnt - find a filesystem


       findmnt [options]

       findmnt [options] device|mountpoint

       findmnt [options] [--source] device [--target] mountpoint


       findmnt  will list all mounted filesytems or search for a filesystem.  The findmnt command
       is able to search in /etc/fstab,  /etc/fstab.d,  /etc/mtab  or  /proc/self/mountinfo.   If
       device or mountpoint is not given, all filesystems are shown.

       The command prints all mounted filesystems in the tree-like format by default.


       -h, --help
              Print help and exit.

       -s, --fstab
              Search  in  /etc/fstab  and  /etc/fstab.d.   The  output is in the list format (see

       -m, --mtab
              Search in /etc/mtab.  The output is in the list format (see --list).

       -k, --kernel
              Search in /proc/self/mountinfo.  The output is in the tree-like  format.   This  is
              the default.

       -c, --canonicalize
              Canonicalize all printed paths.

       -d, --direction word
              The search direction - forward or backward.

       -e, --evaluate
              Convert all tags (LABEL or UUID) to the device names.

       -f, --first-only
              Print the first matching filesystem only.

       -i, --invert
              Invert the sense of matching.

       -l, --list
              Use  the  list  output  format.  This output format is automatically enabled if the
              output is restricted by -t, -O, -S or -T option and the option --submounts  is  not

       -v, --nofsroot
              Do not print a [/dir] in the SOURCE column for bind-mounts or btrfs subvolumes.

       -n, --noheadings
              Do not print a header line.

       -u, --notruncate
              Do  not  truncate  text  in  columns.   The  default is to not truncate the TARGET,
              SOURCE, UUID and LABEL columns.  This option disables text truncation also  in  all
              other columns.

       -O, --options list
              Limit  the  set of printed filesystems.  More than one option may be specified in a
              comma-separated list.  The -t and -O options  are  cumulative  in  effect.   It  is
              different  from  -t  in  that  each  option is matched exactly; a leading no at the
              beginning of one option does not negate the rest.  For more details see mount(8).

       -o, --output list
              Define output columns.  Currently supported are ACTION, SOURCE, TARGET, OLD-TARGET,
              column contains tree formatting if the --list or --raw options are not specified.

       -p, --poll[=list]
              Monitor changes in the /proc/self/mountinfo file.  Supported  actions  are:  mount,
              umount,  remount  and  move.  More  than  one  action  may be specified in a comma-
              separated list. All actions are monitored by default.

              The time for which --poll will block  can  be  restricted  with  the  --timeout  or
              --first-only options.

              The  standard  columns  always  use  the  new  version  of the information from the
              mountinfo file, except the umount action which is based on the original information
              cached by findmnt(8).  The poll mode allows to use extra columns:

              ACTION mount,  umount,  move  or  remount  action  name;  this column is enabled by

                     available for umount and move actions

                     available for umount and remount actions

       -r, --raw
              Use raw output format.

       -a, --ascii
              Use ascii characters for tree formatting.

       -t, --types list
              Limit the set of printed filesystems.  More than one type may  be  specified  in  a
              comma-separated  list.   The  list  of  filesystem types can be prefixed with no to
              specify the filesystem types on which no action should be taken.  For more  details
              see mount(8).

       -R, --submounts
              Print  recursively  all  submounts  for the selected filesystems.  The restrictions
              defined by options -t, -O, -S, -T and --direction are  not  applied  to  submounts.
              All  submounts are always printed in tree-like order.  The option enables the tree-
              like output format by default.  This option has no effect for --mtab or --fstab.

       -S, --source spec
              Explicitly define the mount source.  Supported are device, LABEL= and UUID=.

       -T, --target dir
              Explicitly define the mount target (mountpoint directory).

       -w, --timeout milliseconds
              Specify an upper limit on the time for which --poll will block, in milliseconds.


       findmnt --fstab -t nfs
              Prints all nfs filesystems defined in /etc/fstab.

       findmnt --fstab /mnt/foo
              Prints all /etc/fstab filesystems where the mountpoint directory is  /mnt/foo.   It
              also prints bind mounts where /mnt/foo is a source.

       findmnt --fstab --target /mnt/foo
              Prints all /etc/fstab filesystems where the mountpoint directory is /mnt/foo.

       findmnt --fstab --evaluate
              Prints  all  /etc/fstab  filesystems and converts LABEL= and UUID= tags to the real
              device names.

       findmnt -n --raw --evaluate --output=target LABEL=/boot
              Prints only the mountpoint where the filesystem with label "/boot" is mounted.

       findmnt --poll --target /mnt/foo
              Monitors mount, umount, remount and move on /mnt/foo.

       findmnt --poll=umount --first-only --target /mnt/foo
              Waits for /mnt/foo umount.

       findmnt --poll=remount -t ext3 -O ro
              Monitors remounts to read-only mode on all ext3 filesystems.


       Karel Zak <>


       mount(8), fstab(5)


       The  findmnt  command  is  part  of  the  util-linux  package  and   is   available   from