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MOUNT_STD(8)            FreeBSD System Manager's Manual           MOUNT_STD(8)

NAME
     mount_std, mount_fdesc, mount_kernfs, 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, kernfs, 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-
                visible 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
             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 following manual pages for detailed information on these
     file system: fdesc(5), kernfs(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 ALSO
     mount(2), unmount(2), getvfsbyname(3), fdesc(5), fstab(5), kernfs(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'', ``kernfs'', and
     ``procfs'' filesystem types first appeared in FreeBSD 2.0; the
     ``linprocfs'' filesystem type first appeared in FreeBSD 4.0.

FreeBSD 11.0-PRERELEASE          May 13, 1996          FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | SEE ALSO | CAVEATS | HISTORY

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=mount_procfs&sektion=8&manpath=FreeBSD+4.6-RELEASE>

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