lsvfs
—
list installed virtual file systems
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.
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
A lsvfs
command appeared in FreeBSD
2.0.