NAME
mount_std,
mount_procfs —
mount “standard”
filesystems
SYNOPSIS
mount_fsname |
[-o options]
fs mount_point |
DESCRIPTION
Themount_std command is a generic mechanism for
attaching ``standard'' filesystems to the filesystem. The
mount_std command currently supports the
procfs filesystem. A ``standard'' filesystem is one
which:
- accepts only the standard
-ooptions “ro” (“rdonly”), “rw”, “nodev”, “noexec”, and “nosuid”. - has a kernel filesystem module name the same as its user-visible name.
- requires no other special processing on the part of the
mount_stdcommand.
The options are as follows:
-o- Options are specified with a
-oflag followed by a comma separated string of options. See the mount(8) man page for possible options and their meanings.
The mount_std command examines its zeroth
command-line argument (the name by which it was called) to determine the
type of filesystem to be mounted. If it is called by a name which does not
end in
“_fsname”,
mount_std will assume (for compatibility with
mount(8)) that the zeroth argument contains only the name of the
filesystem type. The mount_std command is normally
installed with appropriate links to commands for the distributed filesystems
which can be mounted in this way; for information on the function of each
filesystem, see the manual page for that specific
mount_fsname command.
Refer to the procfs(5) manual page for detailed information on this file system.
DIAGNOSTICS
- argv[0] must end in _fsname
Mount_stdwas called with a zeroth argument of “mount_std”.- vfsload(%s)
Mount_stdwas unable to load a kernel module implementing the %s filesystem type.- %s filesystem not available
- The specified filesystem type was not present in the kernel and no loadable module for it was found.
SEE ALSO
mount(2), unmount(2), getvfsbyname(3), fstab(5), procfs(5), mount(8)
HISTORY
The mount_std utility first appeared in
FreeBSD 2.2. Loadable filesystem modules first
appeared in FreeBSD 2.0. The “procfs”
filesystem type first appeared in FreeBSD 2.0.
CAVEATS
None of the ``standard'' filesystems may be NFS-exported.