INSTALL_TINY revision 1.120
1#	$NetBSD: INSTALL_TINY,v 1.120 2008/05/13 13:43:47 ad Exp $
2#
3#	This kernel should be derived from INSTALL (which is derived
4#	from GENERIC) with some features commented out.
5#
6#	This kernel has been optimized for space. It is targeted towards
7#	small memory machines (4M). It has no SCSI, PCI or EISA. It does
8#	have pcmcia, for old laptops.
9#
10
11include "arch/i386/conf/std.i386"
12
13#options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
14
15makeoptions 	COPTS="-Os"		# Optimise for space. Implies -O2
16
17# Enable the hooks used for initializing the root memory-disk.
18options 	MEMORY_DISK_HOOKS
19options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
20options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
21options 	MEMORY_DISK_ROOT_SIZE=3100	# size of memory disk, in blocks
22
23maxusers	2		# estimated number of users
24
25# CPU-related options.
26#options 	VM86		# virtual 8086 emulation
27#options 	USER_LDT	# user-settable LDT; used by WINE
28
29# This option allows you to force a serial console at the specified
30# I/O address.
31#options 	CONSDEVNAME="\"com\"",CONADDR=0x3f8,CONSPEED=9600
32
33# Save a physical page per process by not setting a kernel stack red zone.
34options 	NOREDZONE
35
36# The following options override the memory sizes passed in from the boot
37# block.  Use them *only* if the boot block is unable to determine the correct
38# values.  Note that the BIOS may *correctly* report less than 640k of base
39# memory if the extended BIOS data area is located at the top of base memory
40# (as is the case on most recent systems).
41#options 	REALBASEMEM=...	# size of base memory
42#options 	REALEXTMEM=...	# size of extended memory
43
44options 	INSECURE	# disable kernel security levels
45
46options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
47#options 	NTP		# NTP phase/frequency locked loop
48
49#options 	KTRACE		# system call tracing via ktrace(1)
50
51#options 	SYSVSEM		# System V-like semaphores
52#options 	SYSVSHM		# System V-like memory sharing
53#options 	SHMMAXPGS=2048	# 2048 pages is the default
54
55#options 	LKM		# loadable kernel modules
56
57#options 	USERCONF	# userconf(4) support
58options 	PIPE_SOCKETPAIR		# smaller, but slower pipe(2)
59#options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel
60no options 	EXEC_AOUT	# we don't a.out support
61
62# Diagnostic/debugging support options
63#options 	DIAGNOSTIC	# expensive kernel consistency checks
64#options 	DEBUG		# expensive debugging checks/support
65#options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
66#options 	DDB		# in-kernel debugger
67#options 	DDB_ONPANIC=1	# see also sysctl(8): `ddb.onpanic'
68#options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
69#options 	KGDB		# remote debugger
70#options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
71#makeoptions 	DEBUG="-g"	# compile full symbol table
72
73# Compatibility options
74#options 	COMPAT_NOMID	# NetBSD 0.8, 386BSD, and BSDI
75#options 	COMPAT_09	# NetBSD 0.9
76#options 	COMPAT_10	# NetBSD 1.0
77#options 	COMPAT_11	# NetBSD 1.1
78#options 	COMPAT_12	# NetBSD 1.2, 386BSD, and BSDI
79#options 	COMPAT_13	# NetBSD 1.3, 386BSD, and BSDI
80#options 	COMPAT_14	# NetBSD 1.4
81#options 	COMPAT_15	# NetBSD 1.5
82#options 	COMPAT_16	# NetBSD 1.6
83#options 	COMPAT_20	# NetBSD 2.0
84#options 	COMPAT_30	# NetBSD 3.0 compatibility.
85#options 	COMPAT_40	# NetBSD 4.0
86#options 	COMPAT_43	# 4.3BSD, 386BSD, and BSDI
87#options 	COMPAT_386BSD_MBRPART # recognize old partition ID
88#options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
89
90#options 	COMPAT_SVR4	# binary compatibility with SVR4
91#options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
92#options 	COMPAT_LINUX	# binary compatibility with Linux
93#options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
94options 	COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.
95
96# File systems
97file-system 	FFS		# UFS
98#file-system 	EXT2FS		# second extended file system (linux)
99#file-system 	LFS		# log-structured file system
100#file-system 	MFS		# memory file system
101file-system 	NFS		# Network File System client
102file-system 	CD9660		# ISO 9660 + Rock Ridge file system
103file-system 	MSDOSFS		# MS-DOS file system
104#file-system 	FDESC		# /dev/fd
105#file-system 	KERNFS		# /kern
106#file-system 	NULLFS		# loopback file system
107#file-system 	PORTAL		# portal filesystem (still experimental)
108#file-system 	PROCFS		# /proc
109#file-system 	UMAPFS		# NULLFS + uid and gid remapping
110#file-system 	UNION		# union file system
111#file-system 	PTYFS		# /dev/pts/N support
112#file-system 	TMPFS		# Efficient memory file-system
113
114# Filesystem options
115#options 	QUOTA		# UFS quotas
116#options 	NFSSERVER	# Network File System server
117options 	NFS_V2_ONLY	# Exclude NFS3 code to save space
118options 	FFS_NO_SNAPSHOT	# No FFS snapshot support
119#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
120				# immutable) behave as system flags.
121
122# Networking options
123#options 	GATEWAY		# packet forwarding
124options 	INET		# IP + ICMP + TCP + UDP
125#options 	MROUTING	# IP multicast routing
126#options 	PIM		# Protocol Independent Multicast
127#options 	ISO,TPIP	# OSI
128#options 	EON		# OSI tunneling over IP
129#options 	NETATALK	# AppleTalk networking protocols
130#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
131#options 	PPP_DEFLATE	# Deflate compression support for PPP
132#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
133#options 	PFIL_HOOKS	# pfil(9) packet filter hooks
134#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
135
136# These options enable verbose messages for several subsystems.
137# Warning, these may compile large string tables into the kernel!
138#options 	EISAVERBOSE	# verbose EISA device autoconfig messages
139#options 	PCIVERBOSE	# verbose PCI device autoconfig messages
140#options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
141#options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
142#options 	SCSIVERBOSE	# human readable SCSI error messages
143
144# Squeeze...
145options 	NVNODE=50
146options 	NBUF=20
147options 	BUFPAGES=20
148options 	NMBCLUSTERS=64
149
150# Kernel root file system and dump configuration.
151config		netbsd	root on ? type ?
152#config		netbsd	root on sd0a type ffs
153#config		netbsd	root on ? type nfs
154
155#
156# wscons options
157#
158# builtin terminal emulations
159#options 	WSEMUL_SUN		# sun terminal emulation
160options 	WSEMUL_VT100		# VT100 / VT220 emulation
161# customization of console and kernel output - see dev/wscons/wsdisplayvar.h
162#options 	WSDISPLAY_CUSTOM_OUTPUT	# color customization from wsconsctl(8)
163#options 	WS_DEFAULT_FG=WSCOL_WHITE
164#options 	WS_DEFAULT_BG=WSCOL_BLACK
165#options 	WS_DEFAULT_COLATTR="(0)"
166#options 	WS_DEFAULT_MONOATTR="(0)"
167options 	WS_KERNEL_FG=WSCOL_GREEN
168#options 	WS_KERNEL_BG=WSCOL_BLACK
169#options 	WS_KERNEL_COLATTR=""
170#options 	WS_KERNEL_MONOATTR=""
171# customization of console border color
172#options 	WSDISPLAY_CUSTOM_BORDER	# border customization from wsconsctl(8)
173#options 	WSDISPLAY_BORDER_COLOR=WSCOL_BLUE	# default color
174# compatibility to other console drivers
175options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
176options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
177options 	WSDISPLAY_COMPAT_USL		# VT handling
178options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
179# see dev/pckbport/wskbdmap_mfii.c for implemented layouts
180#options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver
181#options 	UKBD_LAYOUT="(KB_DE | KB_NODEAD)"  # for ukbd driver
182# allocate a number of virtual screens at autoconfiguration time
183#options 	WSDISPLAY_DEFAULTSCREENS=4
184# use a large software cursor that doesn't blink
185options 	PCDISPLAY_SOFTCURSOR
186
187#
188# Device configuration
189#
190
191#apm0	at mainbus0			# Advanced power management
192
193
194# Basic Bus Support
195
196# PCI bus support
197#pci*	at mainbus? bus ?
198#pci*	at pchb? bus ?
199#pci*	at ppb? bus ?
200
201# PCI bridges
202#pchb*	at pci? dev ? function ?	# PCI-Host bridges
203#pceb*	at pci? dev ? function ?	# PCI-EISA bridges
204#pcib*	at pci? dev ? function ?	# PCI-ISA bridges
205#ppb*	at pci? dev ? function ?	# PCI-PCI bridges
206# XXX 'puc's aren't really bridges, but there's no better place for them here
207#puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
208
209# As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
210options 	PCIC_ISA_INTR_ALLOC_MASK=0xff47
211
212# PCMCIA bus support
213pcmcia* at pcic? controller ? socket ?
214#pcmcia* at tcic? controller ? socket ?
215
216# ISA PCMCIA controllers
217pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
218pcic1	at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
219
220# EISA bus support
221#eisa0	at mainbus?
222#eisa0	at pceb?
223
224# ISA bus support
225isa0	at mainbus?
226#isa0	at pceb?
227#isa0	at pcib?
228
229# ISA Plug-and-Play bus support
230#isapnp0	at isa?
231
232# Coprocessor Support
233
234# Math Coprocessor support
235npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
236
237
238# Console Devices
239
240# wscons
241pckbc0 		at isa?			# pc keyboard controller
242pckbd* 		at pckbc?		# PC keyboard
243pcdisplay0 	at isa?			# CGA, MDA, EGA, HGA
244wsdisplay* 	at pcdisplay? console ?
245wskbd* 		at pckbd? console ?
246#wsmouse*	at pms? mux 0
247
248# Serial Devices
249
250# PCI serial interfaces
251#com*	at puc? port ?			# 16x50s on "universal" comm boards
252#cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
253
254# ISA Plug-and-Play serial interfaces
255#com*	at isapnp?			# Modems and serial boards
256
257# PCMCIA serial interfaces
258#com*	at pcmcia? function ?		# Modems and serial cards
259
260# ISA serial interfaces
261#options 	COM_HAYESP		# adds Hayes ESP serial board support
262#com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
263#com1	at isa? port 0x2f8 irq 3
264#com2	at isa? port 0x3e8 irq 5
265#com3	at isa? port 0x2e8 irq 9
266#ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
267#com*	at ast? slave ?
268#boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
269#com*	at boca? slave ?
270#rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
271#com*	at rtfps? slave ?
272#cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
273
274
275# Parallel Printer Interfaces
276
277# PCI parallel printer interfaces
278#lpt*	at puc? port ?			# || ports on "universal" comm boards
279
280# ISA parallel printer interfaces
281#lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
282#lpt1	at isa? port 0x278
283#lpt2	at isa? port 0x3bc
284
285# I2O devices
286#iop*	at pci? dev ? function ?	# I/O processor
287#iopsp*	at iop? tid ?			# SCSI/FC-AL ports
288#ld*	at iop? tid ?			# block devices
289#dpti*	at iop? tid 0			# DPT/Adaptec control interface
290
291# SCSI Controllers and Devices
292
293# PCI SCSI controllers
294#ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
295#bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
296#dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
297#isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
298#mly*	at pci? dev ? function ?	# Mylex AcceleRAID and eXtremeRAID
299#siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
300
301# EISA SCSI controllers
302#ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
303#ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
304#bha*	at eisa? slot ?			# BusLogic 7xx SCSI
305#dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
306#uha*	at eisa? slot ?			# UltraStor 24f SCSI
307
308# PCMCIA SCSI controllers
309#aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
310
311# ISA Plug-and-Play SCSI controllers
312#aic*	at isapnp?			# Adaptec AHA-1520B
313
314# ISA SCSI controllers
315#aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
316#aha1	at isa? port 0x334 irq ? drq ?
317#ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
318#aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
319#bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
320#bha1	at isa? port 0x334 irq ? drq ?
321# The "nca" and "dpt" probes might give false hits or hang your machine.
322#dpt0	at isa? port 0x170 irq ? drq ?	# DPT SmartCache/SmartRAID
323#nca0	at isa? port 0x360 irq 15	# Port-mapped NCR 53C80 controller
324#nca1	at isa? iomem 0xd8000 irq 5	# Memory-mapped controller (T128, etc.)
325#sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
326#uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
327#uha1	at isa? port 0x340 irq ? drq ?
328#wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
329#wds1	at isa? port 0x358 irq 11 drq 5
330
331# SCSI bus support
332#scsibus* at scsi?
333
334# SCSI devices
335#sd*	at scsibus? target ? lun ?	# SCSI disk drives
336#st*	at scsibus? target ? lun ?	# SCSI tape drives
337#cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
338#ch*	at scsibus? target ? lun ?	# SCSI autochangers
339#ss*	at scsibus? target ? lun ?	# SCSI scanners
340#uk*	at scsibus? target ? lun ?	# SCSI unknown
341
342
343# RAID controllers and devices
344#aac*	at pci? dev ? function ?	# Adaptec AAC family
345#cac*	at eisa? slot ?			# Compaq EISA array controllers
346#cac*	at pci? dev ? function ?	# Compaq PCI array controllers
347#ciss*	at pci? dev ? function ?	# HP Smart Array controllers
348#icp*	at pci? dev ? function ?	# ICP-Vortex GDT & Intel RAID
349#mlx*	at pci? dev ? function ?	# Mylex DAC960 & DEC SWXCR family
350#mlx*	at eisa? slot ?			# Mylex DAC960 & DEC SWXCR family
351#twe*	at pci? dev ? function ?	# 3ware Escalade RAID controllers
352
353#ld*	at aac? unit ?			# logical disk devices
354#ld*	at cac? unit ?
355#ld*	at icp? unit ?
356#ld*	at twe? unit ?
357#ld*	at mlx? unit ?
358
359#icpsp*	at icp? unit ?			# SCSI pass-through
360
361
362# IDE and related devices
363
364# PCMCIA IDE controllers
365wdc* 	at pcmcia? function ?
366
367# ST506, ESDI, and ISA IDE controllers
368# Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
369# fall back to 16bits I/O if 32bits I/O are not functional).
370# Some controllers pass the initial 32bit test, but will fail later.
371wdc0	at isa? port 0x1f0 irq 14 flags 0x00
372wdc1	at isa? port 0x170 irq 15 flags 0x00
373
374# ATA (IDE) bus support
375atabus* at ata?
376
377# IDE drives
378wd*	at atabus? drive ?		# the drives themselves
379
380# ATAPI bus support
381atapibus* at atapi?
382
383# ATAPI devices
384cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
385#sd*	at atapibus? drive ?		# ATAPI disk drives
386
387
388# Miscellaneous mass storage devices
389
390# ISA floppy
391fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
392#fdc1	at isa? port 0x370 irq ? drq ?
393fd*	at fdc? drive ?			# the drives themselves
394# some machines need you to do this instead of fd*
395#fd0	at fdc0 drive 0
396
397# ISA CD-ROM devices
398#mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
399
400# ISA tape devices
401# note: the wt driver conflicts unpleasantly with ed devices at the
402# same I/O address. The probe reprograms their EEPROMs. Don't
403# uncomment it unless you are actually using it.
404#wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
405
406
407# Network Interfaces
408
409# PCI network interfaces
410#en*	at pci? dev ? function ?	# ENI/Adaptec ATM
411#ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
412#fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
413#fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
414#le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
415#ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
416#tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
417#tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
418
419# EISA network interfaces
420#ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
421#fea*	at eisa? slot ?			# DEC DEFEA FDDI
422
423# ISA Plug-and-Play network interfaces
424#ep*	at isapnp?			# 3Com 3c509 Ethernet
425#ne*	at isapnp?			# NE2000-compatible Ethernet
426
427# PCMCIA network interfaces
428ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
429mbe*	at pcmcia? function ?		# MB8696x based Ethernet
430ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
431sm*	at pcmcia? function ?		# Megahertz Ethernet
432
433# ISA network interfaces
434ate0	at isa? port 0x2a0 irq ?		# AT1700
435ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
436#eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
437#el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
438ep0	at isa? port ? irq ?			# 3C509 ethernet cards
439#ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
440ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
441fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
442ix0	at isa? port 0x300 irq 10		# EtherExpress/16
443iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
444lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
445#depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
446#le*	at depca?
447#nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
448#le*	at nele?
449#bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
450#le*	at bicc?
451ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
452ne1	at isa? port 0x300 irq 10
453sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
454we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
455we1	at isa? port 0x300 iomem 0xcc000 irq 10
456
457# MII bus support
458#mii*	at tl?
459
460# MII PHY network interfaces
461#tlphy*	at mii? dev ?			# ThunderLAN PHYs
462#nsphy*	at mii? dev ?			# NS and compatible PHYs
463#ukphy*	at mii? phy ?			# generic unknown PHYs
464
465
466# Audio Devices
467
468# ISA Plug-and-Play audio devices
469#guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
470#sb*	at isapnp?			# SoundBlaster-compatible audio
471
472# ISA audio devices
473#gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
474#pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
475#sb0	at isa? port 0x220 irq 7 drq 1 drq2 5	# SoundBlaster
476#wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
477
478# Audio support
479#audio*	at audiobus?
480
481# The spkr driver provides a simple tone interface to the built in speaker.
482#spkr0	at pcppi?		# PC speaker
483
484
485# Joysticks
486
487# ISA Plug-and-Play joysticks
488#joy*	at isapnp?			# Game ports (usually on audio cards)
489
490# ISA joysticks. Probe is a little strange; add only if you have one.
491#joy0	at isa? port 0x201
492
493
494# Miscellaneous Devices
495
496# Planetconnect Satellite receiver driver.
497#satlink0 at isa? port 0x300 drq 1
498
499
500# Pull in optional local configuration
501cinclude "arch/i386/conf/INSTALL.local"
502
503
504# Pseudo-Devices
505
506# disk/mass storage pseudo-devices
507#pseudo-device	ccd		4	# concatenated/striped disk devices
508#pseudo-device	fss		4	# file system snapshot device
509pseudo-device	md		1	# memory disk device (ramdisk)
510#pseudo-device	vnd			# disk-like interface to files
511
512# network pseudo-devices
513#pseudo-device	bpfilter		# Berkeley packet filter
514#pseudo-device	ipfilter		# IP filter (firewall) and NAT
515pseudo-device	loop			# network loopback
516#pseudo-device	ppp			# Point-to-Point Protocol
517#pseudo-device	sl			# Serial Line IP
518#pseudo-device	strip			# Starmode Radio IP (Metricom)
519#pseudo-device	tun			# network tunneling over tty
520
521# miscellaneous pseudo-devices
522pseudo-device	pty		2	# pseudo-terminals (Sysinst needs two)
523options 	NO_DEV_PTM
524#pseudo-device	rnd			# /dev/random and in-kernel generator
525#options 	RND_COM			# use "com" randomness as well (BROKEN)
526