2a7d4d9545
Mountroot isn't documented in the extant manual pages - so this phrasing, while less absolute and concise, still conveys which modules are recommended to be handled via loader.conf(5), and it also does a better job of elucidating that the modules can include filesystem drivers. Submitted by: kevans (earlier version) Reported by: imp, kevans, eugen Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D28542
137 lines
3.7 KiB
Groff
137 lines
3.7 KiB
Groff
.\"
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.\" Copyright (c) 1997 Doug Rabson
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd February 11, 2021
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.Dt KLDLOAD 8
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.Os
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.Sh NAME
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.Nm kldload
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.Nd load a file into the kernel
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.Sh SYNOPSIS
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.Nm
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.Op Fl nqv
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.Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility loads
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.Ar file Ns Pa .ko
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into the kernel using the kernel linker.
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Note that if multiple modules are specified then an attempt will
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be made to load them all, even if some fail.
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The
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.Pa .ko
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extension name is not mandatory when loading a given module
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using
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.Nm .
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It does not hurt to specify it though.
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.Pp
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If a bare filename is requested it will only be loaded if it is found within
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the module path as defined by the sysctl
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.Va kern.module_path .
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To load a module from the current directory it must be specified as a full or
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relative path.
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The
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.Nm
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utility will warn if a module is requested as a bare filename and is present
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in the current directory.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl n
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Do not try to load module if already loaded.
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.It Fl v
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Be more verbose.
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.It Fl q
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Silence any extraneous warnings.
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.El
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.Sh NOTES
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The kernel security level settings may prevent a module from being
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loaded or unloaded by giving
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.Em "Operation not permitted" .
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.Sh FILES
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.Bl -tag -width /boot/kernel -compact
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.It Pa /boot/kernel
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directory containing loadable modules.
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Modules must have an extension of
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.Pa .ko .
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh EXAMPLES
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To load by module name:
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.Bd -literal -offset indent
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\*[Gt] kldload foo
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.Ed
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.Pp
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To load by file name within the module path:
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.Bd -literal -offset indent
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\*[Gt] kldload foo.ko
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.Ed
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.Pp
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To load by relative path:
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.Bd -literal -offset indent
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\*[Gt] kldload ./foo.ko
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.Ed
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.Pp
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To load by full path:
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.Bd -literal -offset indent
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\*[Gt] kldload /boot/kernel/foo.ko
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.Ed
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.Sh AUTOMATICALLY LOADING MODULES
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Some modules (pf, ipfw, ipf, etc.) may be automatically loaded at boot
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time when the corresponding
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.Xr rc.conf 5
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statement is used.
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Modules may also be auto-loaded through their addition to
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.Xr loader.conf 5
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or kld_list in
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.Xr rc.conf 5 .
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.Pp
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Only those modules necessary for booting the system, including those
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required for mounting the root filesystem, should be handled by
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.Xr loader.conf 5 .
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.Sh SEE ALSO
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.Xr kldload 2 ,
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.Xr loader.conf 5 ,
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.Xr rc.conf 5 ,
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.Xr security 7 ,
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.Xr kldconfig 8 ,
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.Xr kldstat 8 ,
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.Xr kldunload 8 ,
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.Xr kldxref 8
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Fx 3.0 ,
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replacing the
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.Nm lkm
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interface.
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.Sh AUTHORS
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.An Doug Rabson Aq Mt dfr@FreeBSD.org
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