MOUNT_STD(8) BSD System Manager's Manual MOUNT_STD(8)NAME
mount_std, mount_fdesc, mount_linprocfs, mount_procfs — mount “standard”
filesystems
SYNOPSIS
mount_fsname [-o options] fs mount_point
DESCRIPTION
The mount_std command is a generic mechanism for attaching ``standard''
filesystems to the filesystem. The mount_std command currently supports
the following filesystems: fdesc, linprocfs and procfs. A ``standard''
filesystem is one which:
1. accepts only the standard -o options “ro” (“rdonly”), “rw”,
“nodev”, “noexec”, “nosuid”, and “union”.
2. has a kernel filesystem module name the same as its user-visi‐
ble name.
3. requires no other special processing on the part of the
mount_std command.
The options are as follows:
-o Options are specified with a -o flag followed by a comma sepa‐
rated 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 following manual pages for detailed information on these
file system: fdesc(5), linprocfs(5) and procfs(5).
DIAGNOSTICS
argv[0] must end in _fsname Mount_std was called with a zeroth argument
of “mount_std”.
vfsload(%s) Mount_std was 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 ALSOmount(2), unmount(2), getvfsbyname(3), fdesc(5), fstab(5), linprocfs(5),
procfs(5), mount(8)CAVEATS
None of the ``standard'' filesystems may be NFS-exported.
HISTORY
The mount_std utility first appeared in FreeBSD 2.2. Loadable filesystem
modules first appeared in FreeBSD 2.0. The “fdesc” and “procfs” filesys‐
tem types first appeared in FreeBSD 2.0; the “linprocfs” filesystem type
first appeared in FreeBSD 4.0.
BSD May 13, 1996 BSD
