FINDMNT(8) FINDMNT(8) findmnt - findmnt [] findmnt [] |_ findmnt [] [--source] [--target |--mountpoint ] findmnt . findmnt /etc/fstab, /etc/mtab /proc/self/mountinfo. -, . , :, UUID UUID . , findmnt mount(8), ( ), --target, --mountpoint --source. --target - , findmnt . , . . , , . --output - , . ' . . findmnt SOURCE and SOURCES (pl.). SOURCE , UUID ( , fstab --fstab --evaluate). -A, --all . -a, --ascii ASCII . -b, --bytes Print sizes in bytes rather than in human-readable form. By default, sizes are shown in units that are powers of 1024 bytes. The formal abbreviations for these units (KiB, MiB, GiB, ...) are further shortened to just their first letter: K, M, G, .... -C, --nocanonicalize . (LABEL, UUID ). -c, --canonicalize . -D, --df df(1). -o SOURCE,FSTYPE,SIZE,USED,AVAIL,USE%,TARGET, . --all . . -I, --dfi. -d, --direction , forward () backward (). -e, --evaluate (LABEL, UUID, PARTUUID PARTLABEL) SOURCE. , ( ). SOURCES (pl.). , libblkid. fstab. -F, --tab-file . --fstab, --mtab --kernel, . , (. --list). -f, --first-only . -H, --list-columns List the columns that can be specified with the --output option. Can be used with --json or --raw to get the list in a machine-readable format. --hyperlink[=when] Print paths as terminal hyperlinks. The optional when argument can be always, never, or auto. If the argument is omitted, it defaults to auto, which means that hyperlinks will only be used when the output goes to a terminal. -I, --dfi df(1) -i. -o SOURCE,FSTYPE,INO.TOTAL,INO.USED,INO.AVAIL,INO.USE%,TARGET, . --all . -i, --invert . --id . --uniq-id Select a filesystem using the mount node 64-bit ID, use with --kernel=listmount option. -J, --json B JSON. -k, --kernel[=method] Reads information about filesystems from the kernel. This is the default output. The format is tree-like and only includes mount options managed by the kernel (see also --mtab). The optional argument method is supported only for the long variant (--kernel). The short variant (-k) defaults to the mountinfo method for backward compatibility. The supported methods can be either: o mountinfo - this is the default method and it reads data from the /proc/self/mountinfo file. o listmount - This is an EXPERIMENTAL method that uses the listmount(2) and statmount(2) syscalls to generate the mount table. The output may not contain all details about mount nodes (for example, SOURCE is currently missing). -l, --list . , -t, -O, -S -T, --submounts, ( -F). -M, --mountpoint . . --target. -m, --mtab /etc/mtab. , (. --tree). . -N, --task tid /proc//mountinfo, /proc/self/mountinfo. , (. --list). . unshare(1). -n, --noheadings . -O, --options . , . -t -O . -t , ; no . <> . <> <<+>>. -o, --output . . --help, . TARGET , --list --raw. , + (: findmnt -o +PROPAGATION). --output-all . , --poll, . -P, --pairs ="". (\x<>). . --shell. Note that SOURCES column, use multi-line cells. In these cases, the column use an array-like formatting in the output, for example name=("aaa" "bbb" "ccc"). -p, --poll[=list] /proc/self/mountinfo. (mount), (umount), (remount) (move). , . , . , --poll, --timeout --first-only. mountinfo, umount, findmnt. : ACTION mount, umount, move remount; OLD-TARGET umount move OLD-OPTIONS --pseudo . -Q, --filter Print only the filesystems that meet the conditions specified by the expr. This feature is EXPERIMENTAL. See also scols-filter(5). For example, include xfs having more than 50% free space: findmnt -Q 'INO.USED < INO.AVAIL && FSTYPE == "xfs"' -R, --submounts . , -t, -O, -S, -T --direction . . . --mtab --fstab. -r, --raw . (\x<>). Note that column SOURCES, use multi-line cells. In these cases, the column may produce more strings on the same line. --real . -S, --source . , :, LABEL=, UUID=uuid, PARTLABEL= PARTUUID=uuid. -s, --fstab /etc/fstab. (. --list). --shadowed Print only filesystems that are over-mounted by another filesystem. -T, --target . , findmnt ( --fstab). --mountpoint , . -t, --types . . no, , . , . mount(8). --tree , , . , ' - (: fstab). -U, --uniq , , . -u, --notruncate . , TARGET, SOURCE, UUID, LABEL, PARTUUID, PARTLABEL. . -v, --nofsroot [/] ' btrfs. --verbose findmnt ( --verify). --vfs-all VFS-OPTIONS, VFS ( ). , , , . -w, --timeout , --poll, . -x, --verify . , /etc/fstab. --tab-file. () ( ) . --verbose findmnt . -y, --shell , , , , --pairs. , --pairs 2.37, --shell. -h, --help . -V, --version . 0, , 1, - (, , , ). LIBMOUNT_FSTAB=<> fstab LIBMOUNT_MTAB=<> mtab LIBMOUNT_DEBUG=all libmount LIBSMARTCOLS_DEBUG=all libsmartcols. LIBSMARTCOLS_DEBUG_PADDING=on . findmnt --fstab -t nfs NFS, /etc/fstab. findmnt --fstab /mnt/foo /etc/fstab, /mnt/foo. ', /mnt/foo. findmnt --fstab --target /mnt/foo /etc/fstab, /mnt/foo. findmnt --fstab --evaluate /etc/fstab LABEL= UUID= . findmnt -n --raw --evaluate --output=target LABEL=/boot , "/boot". findmnt --poll --mountpoint /mnt/foo mount, unmount, remount move /mnt/foo. findmnt --poll=umount --first-only --mountpoint /mnt/foo /mnt/foo. findmnt --poll=remount -t ext3 -O ro ext3. Karel Zak fstab(5), mount(8) scols-filter(5) findmnt util-linux, Linux . util-linux 2.42.3 2026-09-02 FINDMNT(8)