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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 14.2-RELEASE December 28, 2020 FreeBSD 14.2-RELEASE