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Date:      Tue, 13 Jun 2000 13:32:10 -0400
From:      Bob Collins <bob@sfcei.com>
To:        "FreeBSD (E-mail)" <freebsd-questions@FreeBSD.ORG>
Subject:   HUGE kernel
Message-ID:  <B9FB8C769C17D411892D00B0D02165320D9C@SF_PDC>

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I have compiled a new kernel and it has become huge. It is 3 times the size
of the GENERIC kernel. Below is the config file for a kernel called BOB. I
apologize for the size of this message. I am quite a newbie, so please be
gentle. ;-)

FWIW, I have left almost all the comments in the file and I have no scsi
devices. A quick question at this time; is it okay to delete all the device
lines and comments that are not required? What is the proffered method?

#
# BOB new kernel 
#
#
#	$Id: BOB,v 1.0.0.0 2000/06/13 11:05:05 $

machine	"i386"
#cpu		"I386_CPU"
#cpu		"I486_CPU"
cpu		"I586_CPU"
#cpu		"I686_CPU"
ident	 	BOB	
maxusers	64

#options	MATH_EMULATE		#Support for x87 emulation
options		INET			#InterNETworking
options		FFS			#Berkeley Fast Filesystem
options		FFS_ROOT		#FFS usable as root device [keep
this!]
options		MFS			#Memory Filesystem
options		MFS_ROOT		#MFS usable as root device, "MFS"
req'ed
options		NFS			#Network Filesystem
options		NFS_ROOT		#NFS usable as root device, "NFS"
req'ed
options		MSDOSFS			#MSDOS Filesystem
options		"CD9660"		#ISO 9660 Filesystem
options		"CD9660_ROOT"		#CD-ROM usable as root. "CD9660"
req'ed
options		PROCFS			#Process filesystem
options		"COMPAT_43"		#Compatible with BSD 4.3 [KEEP
THIS!]
#options	SCSI_DELAY=15000	#Be pessimistic about Joe SCSI
device
options		UCONSOLE		#Allow users to grab the console
options		FAILSAFE		#Be conservative
options		USERCONFIG		#boot -c editor
options		VISUAL_USERCONFIG	#visual boot -c editor

config		kernel	root on wd0

# To make an SMP kernel, the next two are needed
#options	SMP			# Symmetric MultiProcessor Kernel
#options	APIC_IO			# Symmetric (APIC) I/O
# Optionally these may need tweaked, (defaults shown):
#options	NCPU=2			# number of CPUs
#options	NBUS=4			# number of busses
#options	NAPIC=1			# number of IO APICs
#options	NINTR=24		# number of INTs

controller	isa0
controller	pnp0
#controller	eisa0
controller	pci0

controller	fdc0	at isa? port "IO_FD1" bio irq 6 drq 2
disk		fd0	at fdc0 drive 0
#disk		fd1	at fdc0 drive 1

#options		"CMD640"	# work around CMD640 chip deficiency
controller	wdc0	at isa? port "IO_WD1" bio irq 14
disk		wd0	at wdc0 drive 0
disk		wd1	at wdc0 drive 1

controller	wdc1	at isa? port "IO_WD2" bio irq 15
disk		wd2	at wdc1 drive 0
disk		wd3	at wdc1 drive 1

options		ATAPI		#Enable ATAPI support for IDE bus
options		ATAPI_STATIC	#Don't do it as an LKM
device		acd0		#IDE CD-ROM
#device		wfd0		#IDE Floppy (e.g. LS-120)

# A single entry for any of these controllers (ncr, ahb, ahc) is
# sufficient for any number of installed devices.
#controller	ncr0
#controller	ahb0
#controller	ahc0
#controller	isp0

# This controller offers a number of configuration options, too many to
# document here  - see the LINT file in this directory and look up the
# dpt0 entry there for much fuller documentation on this.
#controller      dpt0

#controller	adv0	at isa? port ? cam irq ?
#controller	adw0
#controller	bt0	at isa? port ? cam irq ?
#controller	aha0	at isa? port ? cam irq ?

#controller	scbus0

#device		da0

#device		sa0

#device		pass0

device		cd0	#Only need one of these, the code dynamically grows

#device		wt0	at isa? port 0x300 bio irq 5 drq 1
#device		mcd0	at isa? port 0x300 bio irq 10

#controller	matcd0	at isa? port 0x230 bio

#device		scd0	at isa? port 0x230 bio

# atkbdc0 controlls both the keyboard and the PS/2 mouse
controller	atkbdc0	at isa? port IO_KBD tty
device		atkbd0	at isa? tty irq 1
#device		psm0	at isa? tty irq 12

device		vga0	at isa? port ? conflicts

# splash screen/screen saver
pseudo-device	splash

# syscons is the default console driver, resembling an SCO console
device		sc0	at isa? tty
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device		vt0	at isa? tty
#options		XSERVER			# support for X server
#options		FAT_CURSOR		# start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT
lines
#options		PCVT_SCANSET=2		# IBM keyboards are non-std

device		npx0	at isa? port IO_NPX irq 13

#
# Laptop support (see LINT for more options)
#
#device		apm0    at isa?	disable	flags 0x31 # Advanced Power
Management

# PCCARD (PCMCIA) support
#controller	card0
#device		pcic0	at card?
#device		pcic1	at card?

device		sio0	at isa? port "IO_COM1" flags 0x10 tty irq 4
device		sio1	at isa? port "IO_COM2" tty irq 3
#device		sio2	at isa? disable port "IO_COM3" tty irq 5
#device		sio3	at isa? disable port "IO_COM4" tty irq 9

# Parallel port
device		ppc0	at isa? port? flags 0x40 net irq 7
controller	ppbus0
device		lpt0	at ppbus?
device		plip0	at ppbus?
device		ppi0	at ppbus?
#controller	vpo0	at ppbus?

#
# The following Ethernet NICs are all PCI devices.
#
#device al0		# ADMtek AL981 (``Comet'')
#device ax0		# ASIX AX88140A
#device de0		# DEC/Intel DC21x4x (``Tulip'')
#device fxp0		# Intel EtherExpress PRO/100B (82557, 82558)
#device mx0		# Macronix 98713/98715/98725 (``PMAC'')
device pn0		# Lite-On 82c168/82c169 (``PNIC'')
#device rl0		# RealTek 8129/8139
#device tl0		# Texas Instruments ThunderLAN
#device tx0		# SMC 9432TX (83c170 ``EPIC'')
#device vr0		# VIA Rhine, Rhine II
#device vx0		# 3Com 3c590, 3c595 (``Vortex'')
#device wb0		# Winbond W89C840F
#device xl0		# 3Com 3c90x (``Boomerang'', ``Cyclone'')

# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.

#device ed0 at isa? port 0x280 net irq 10 iomem 0xd8000
device ie0 at isa? port 0x300 net irq 10 iomem 0xd0000
#device ep0 at isa? port 0x300 net irq 10
#device ex0 at isa? port? net irq?
#device fe0 at isa? port 0x300 net irq ?
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000
#device lnc0 at isa? port 0x280 net irq 10 drq 0
#device xe0 at isa? port? net irq ?
#device ze0 at isa? port 0x300 net irq 10 iomem 0xd8000
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000
#device cs0 at isa? port 0x300 net irq ?

pseudo-device	loop
pseudo-device	ether
#pseudo-device	sl	1
#pseudo-device	ppp	1
#pseudo-device	tun	1
pseudo-device	pty	16
pseudo-device	gzip		# Exec gzipped a.out's

# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
options		KTRACE		#kernel tracing

# This provides support for System V shared memory and message queues.
#
options		SYSVSHM
options		SYSVMSG
options		SYSVSEM

#  The `bpfilter' pseudo-device enables the Berkeley Packet Filter.  Be
#  aware of the legal and administrative consequences of enabling this
#  option.  The number of devices determines the maximum number of
#  simultaneous BPF clients programs runnable.
#pseudo-device	bpfilter 4	#Berkeley packet filter


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