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/mtab
or /proc/self/mountinfo
. If device
or mountpoint
is not given, all
filesystems are shown.
The device may be specified by device name, maj:min, filesystem LABEL or UUID or partition PARTUUID or PARTLABEL. Note that device name may be interpreted as mountpoint (and vice versa) if --target or --source options are not specified.
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
.
The output is in the list format (see --list).
−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.
−A,
−−all
Disable all built-in filters and print all filesystems.
−a,
−−ascii
Use ascii characters for tree formatting.
−c,
−−canonicalize
Canonicalize all printed paths.
−D,
−−df
Imitate the output of df(1). This option is
equivalent to "-o
SOURCE,FSTYPE,SIZE,USED,AVAIL,USE%,TARGET", but
excludes all pseudo filesystem. Use −−all
to print all
filesystems.
−d,
−−direction
wordThe search direction - forward or backward.
−e,
−−evaluate
Convert all tags (LABEL, UUID, PARTUUID or PARTLABEL) to the device names.
−F,
−−tab−file
pathSearch in an alternative file, if used with
−−fstab
,
−−mtab
or
−−kernel
then
overwrites the default paths, if specified more than
once, then tree-like output is disabled (see the
−−list
option).
−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 used or if more that one source file (the option
−F
) is specified.
−v,
−−nofsroot
Do not print a [/dir] in the SOURCE column for bind-mounts or btrfs subvolumes.
−N,
−−task
tidUse alternative namespace
/proc/<tid>/mountinfo rather than the default
/proc/self/mountinfo. If the option is specified more
than once, then tree-like output is disabled (see the
−−list
option).
See also unshare(1)
command.
−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
, LABEL
, PARTUUID
, PARTLABEL
columns. This option
disables text truncation also in all other columns.
−O,
−−options
listLimit 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
does not have global meaning. The "no" could used for
individual items in the list. The "no" prefix
interpratation could be disabled by "+" prefix.
−o,
−−output
listDefine output columns. See the −−help
output to get list
of the currently supported columns. The 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 default
- OLD-TARGET
available for umount and move actions
- OLD-OPTIONS
available for umount and remount actions
−P,
−−pairs
Use key="value" output format. All potentially unsafe characters are hex-escaped (\x<code>).
−r,
−−raw
Use raw output format. All potentially unsafe characters are hex-escaped (\x<code>).
−t,
−−types
listLimit 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
specExplicitly define the mount source. Supported are
device
,
maj:min
,
LABEL=
,
UUID=
,
PARTLABEL=
or
PARTUUID=
.
−T,
−−target
dirExplicitly define the mount target (mountpoint directory).
−w,
−−timeout
millisecondsSpecify an upper limit on the time for which
−−poll
will
block, in milliseconds.
Prints all nfs filesystems defined in /etc/fstab
.
Prints all /etc/fstab
filesystems where the mountpoint directory is /mnt/foo.
It also prints bind mounts where /mnt/foo is a
source.
Prints all /etc/fstab
filesystems where the mountpoint directory is
/mnt/foo.
Prints all /etc/fstab
filesystems and converts LABEL= and UUID= tags to the
real device names.
Prints only the mountpoint where the filesystem with label "/boot" is mounted.
Monitors mount, umount, remount and move on /mnt/foo.
Waits for /mnt/foo umount.
Monitors remounts to read-only mode on all ext3 filesystems.