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DRIVERS.CONF(5)		    BSD	File Formats Manual	       DRIVERS.CONF(5)

     drivers.conf -- driver configuration file for boot	floppies

     The file drivers.conf is used during the release build process.  A
     FreeBSD release includes three installation floppies.  The	first floppy
     image, kern.flp, contains a statically linked kernel.  The	second floppy
     image, mfsroot.flp, contains sysinstall(8), a collection of essential
     commands necessary	for installation, and kernel modules to	supplement the
     boot kernel.  The third floppy image, drivers.flp,	contains optional de-
     vice drivers that may not be necessary for	installation.  Users must ini-
     tially boot the system with kern.flp.  Once the system has	booted,	the
     user is prompted to insert	the mfsroot.flp.  The modules present in the
     /stand/modules directory of the mfsroot floppy will automatically be
     loaded by sysinstall(8).  If the user requires additional drivers,	then
     the drivers present on drivers.flp	may be loaded from sysinstall(8).

     The /usr/src/release/${arch}/drivers.conf file contains a list of drivers
     that should be omitted from the boot kernel and installed as kernel mod-
     ules on the mfsroot floppy	or the driver floppy.  This is necessary be-
     cause a static kernel with	all of the FreeBSD device drivers would	be far
     too large for a single floppy disk.  Each driver is described on a	sepa-
     rate line;	fields on each line are	separated by tabs or spaces.

     The first field, driver, is the name of the driver	or option in the ker-
     nel configuration file.  This is used by driver-remove.awk	to remove
     drivers from the boot floppy kernel configuration file that are included
     as	modules	on the mfsroot floppy.

     The second	field, filename, is the	name of	the associated kernel module
     (without the .ko extension).

     The third field, floppy, specifies	which floppy disk should include the
     kernel module.  A value of	2 represents the mfsroot.flp floppy image, and
     a value of	3 represents the optional drivers.flp floppy image.

     The fourth	field, type, specifies the driver category.  If	set to
     "options",	then this module is assumed to add the functionality of	a ker-
     nel option.  Otherwise, this module is assumed to represent a device

     The fifth field, description, provides a short description	of the device
     driver.  This description is displayed to the user	by sysinstall(8) when
     the module	is loaded.  The	descriptions for all drivers on	the optional
     drivers.flp image are listed in the file DRIVERS.TXT which	is created by
     driver-desc.awk and accompanies the floppy	images on the FTP sites	and
     release media.


     release(7), kldload(8), sysinstall(8)

     FreeBSD Release Engineering,

     The drivers.conf file appeared in FreeBSD 4.5.

     HOSOKAWA, Tatsumi <> originally added support for
     moving kernel modules to the mfsroot installer floppy image.  This	manual
     page was written by Murray	Stokely	<>.

BSD				March 23, 2002				   BSD


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