LSVFS(1)                FreeBSD General Commands Manual               LSVFS(1)

NAME
     lsvfs - list installed virtual file systems

SYNOPSIS
     lsvfs [vfsname ...]

DESCRIPTION
     The lsvfs command lists information about the currently loaded virtual
     file system modules.  When vfsname arguments are given, lsvfs lists
     information about the specified VFS modules.  Otherwise, lsvfs lists all
     currently loaded modules.  The information is as follows:

     Filesystem  the name of the file system, as would be used in the type
                 parameter to mount(2) and the -t option to mount(8)
     Num         the filesystem type number.
     Refs        the number of references to this VFS; i.e., the number of
                 currently mounted file systems of this type
     Flags       flag bits.

EXAMPLES
     Show information about the `ufs' and devfs(5) filesystems and check the
     number of mounts for the former:

           $ lsvfs ufs devfs
           Filesystem                              Num  Refs  Flags
           -------------------------------- ---------- -----  ---------------
           ufs                              0x00000035     2
           devfs                            0x00000071     1  synthetic, jail

           $ mount -t ufs | wc -l
                  2

SEE ALSO
     mount(2), getvfsbyname(3), mount(8)

HISTORY
     A lsvfs command appeared in FreeBSD 2.0.

FreeBSD 13.1-RELEASE-p6        December 28, 2020       FreeBSD 13.1-RELEASE-p6