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INSTALL_TINY revision 1.71
      1 #	$NetBSD: INSTALL_TINY,v 1.71 2003/06/05 14:33:51 dsl Exp $
      2 #
      3 #	INSTALL_TINY - Tiny Installation kernel, suitable for 4M machines.
      4 #
      5 #	This kernel should be derived from INSTALL (which is derived
      6 #	from GENERIC) with some features commented out.
      7 #
      8 #	This kernel has been optimized for space. It is targeted towards
      9 #	small memory machines (4M). It has no SCSI, PCI or EISA. It does
     10 #	have pcmcia, for old laptops.
     11 #
     12 
     13 include "arch/i386/conf/std.i386"
     14 
     15 #options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
     16 
     17 makeoptions	COPTS="-Os"		# Optimise for space. Implies -O2
     18 
     19 # Enable the hooks used for initializing the root memory-disk.
     20 options 	MEMORY_DISK_HOOKS
     21 options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
     22 options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
     23 options 	MEMORY_DISK_ROOT_SIZE=3100	# size of memory disk, in blocks
     24 
     25 maxusers	2		# estimated number of users
     26 
     27 # CPU support.  At least one is REQUIRED.
     28 options 	I386_CPU
     29 options 	I486_CPU
     30 #options 	I586_CPU
     31 #options 	I686_CPU
     32 
     33 # CPU-related options.
     34 options 	MATH_EMULATE	# floating point emulation
     35 #options 	VM86		# virtual 8086 emulation
     36 #options 	USER_LDT	# user-settable LDT; used by WINE
     37 # insert delay no-ops in interrupts; recommended on very old machines
     38 options 	PIC_DELAY
     39 
     40 # Misc. i386-specific options
     41 #options 	XSERVER		# X server support in console drivers
     42 
     43 # This option allows you to force a serial console at the specified
     44 # I/O address.
     45 #options 	CONSDEVNAME="\"com\"",CONADDR=0x3f8,CONSPEED=9600
     46 
     47 # Save a physical page per process by not setting a kernel stack red zone.
     48 options 	NOREDZONE
     49 
     50 # The following options override the memory sizes passed in from the boot
     51 # block.  Use them *only* if the boot block is unable to determine the correct
     52 # values.  Note that the BIOS may *correctly* report less than 640k of base
     53 # memory if the extended BIOS data area is located at the top of base memory
     54 # (as is the case on most recent systems).
     55 #options 	REALBASEMEM=...	# size of base memory
     56 #options 	REALEXTMEM=...	# size of extended memory
     57 
     58 options 	INSECURE	# disable kernel security levels
     59 
     60 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     61 #options 	NTP		# NTP phase/frequency locked loop
     62 
     63 #options 	KTRACE		# system call tracing via ktrace(1)
     64 
     65 #options 	SYSVSEM		# System V-like semaphores
     66 #options 	SYSVSHM		# System V-like memory sharing
     67 #options 	SHMMAXPGS=2048	# 2048 pages is the default
     68 
     69 #options 	LKM		# loadable kernel modules
     70 
     71 #options 	USERCONF	# userconf(4) support
     72 options		PIPE_SOCKETPAIR		# smaller, but slower pipe(2)
     73 options 	MALLOC_NOINLINE		# Not inlining MALLOC saves memory
     74 
     75 # Diagnostic/debugging support options
     76 #options 	DIAGNOSTIC	# expensive kernel consistency checks
     77 #options 	DEBUG		# expensive debugging checks/support
     78 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     79 #options 	DDB		# in-kernel debugger
     80 #options 	DDB_ONPANIC=1	# see also sysctl(8): `ddb.onpanic'
     81 #options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
     82 #options 	KGDB		# remote debugger
     83 #options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
     84 #makeoptions	DEBUG="-g"	# compile full symbol table
     85 
     86 # Compatibility options
     87 #options 	COMPAT_NOMID	# NetBSD 0.8, 386BSD, and BSDI
     88 #options 	COMPAT_09	# NetBSD 0.9
     89 #options 	COMPAT_10	# NetBSD 1.0
     90 #options 	COMPAT_11	# NetBSD 1.1
     91 #options 	COMPAT_12	# NetBSD 1.2, 386BSD, and BSDI
     92 #options 	COMPAT_13	# NetBSD 1.3, 386BSD, and BSDI
     93 #options 	COMPAT_14	# NetBSD 1.4
     94 #options 	COMPAT_15	# NetBSD 1.5
     95 #options 	COMPAT_43	# 4.3BSD, 386BSD, and BSDI
     96 options 	COMPAT_386BSD_MBRPART # recognize old partition ID
     97 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     98 
     99 #options 	COMPAT_SVR4	# binary compatibility with SVR4
    100 #options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
    101 #options 	COMPAT_LINUX	# binary compatibility with Linux
    102 #options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
    103 
    104 # File systems
    105 file-system 	FFS		# UFS
    106 #file-system 	EXT2FS		# second extended file system (linux)
    107 #file-system 	LFS		# log-structured file system
    108 #file-system 	MFS		# memory file system
    109 file-system 	NFS		# Network File System client
    110 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
    111 file-system 	MSDOSFS		# MS-DOS file system
    112 #file-system 	FDESC		# /dev/fd
    113 file-system 	KERNFS		# /kern
    114 #file-system 	NULLFS		# loopback file system
    115 #file-system 	PORTAL		# portal filesystem (still experimental)
    116 #file-system 	PROCFS		# /proc
    117 #file-system 	UMAPFS		# NULLFS + uid and gid remapping
    118 #file-system 	UNION		# union file system
    119 
    120 # Filesystem options
    121 #options 	QUOTA		# UFS quotas
    122 #options 	NFSSERVER	# Network File System server
    123 options 	NFS_V2_ONLY	# Exclude NFS3 and NQNFS code to save space
    124 options 	VNODE_OP_NOINLINE	# Not inlining vnode op calls saves mem
    125 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    126 				# immutable) behave as system flags.
    127 
    128 # Networking options
    129 #options 	GATEWAY		# packet forwarding
    130 options 	INET		# IP + ICMP + TCP + UDP
    131 #options 	MROUTING	# IP multicast routing
    132 #options 	NS		# XNS
    133 #options 	NSIP		# XNS tunneling over IP
    134 #options 	ISO,TPIP	# OSI
    135 #options 	EON		# OSI tunneling over IP
    136 #options 	CCITT,LLC,HDLC	# X.25
    137 #options 	NETATALK	# AppleTalk networking protocols
    138 #options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    139 #options 	PPP_DEFLATE	# Deflate compression support for PPP
    140 #options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    141 #options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    142 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    143 
    144 # These options enable verbose messages for several subsystems.
    145 # Warning, these may compile large string tables into the kernel!
    146 #options 	EISAVERBOSE	# verbose EISA device autoconfig messages
    147 #options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    148 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    149 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    150 #options 	SCSIVERBOSE	# human readable SCSI error messages
    151 #options 	I2OVERBOSE	# verbose I2O driver messages
    152 
    153 # Squeeze...
    154 options 	NVNODE=50
    155 options 	NBUF=20
    156 options 	BUFPAGES=20
    157 options 	NMBCLUSTERS=64
    158 
    159 # Kernel root file system and dump configuration.
    160 config		netbsd	root on ? type ?
    161 #config		netbsd	root on sd0a type ffs
    162 #config		netbsd	root on ? type nfs
    163 
    164 #
    165 # Device configuration
    166 #
    167 
    168 mainbus0 at root
    169 cpu0	at mainbus0
    170 #apm0	at mainbus0			# Advanced power management
    171 
    172 
    173 # Basic Bus Support
    174 
    175 # PCI bus support
    176 #pci*	at mainbus? bus ?
    177 #pci*	at pchb? bus ?
    178 #pci*	at ppb? bus ?
    179 
    180 # PCI bridges
    181 #pchb*	at pci? dev ? function ?	# PCI-Host bridges
    182 #pceb*	at pci? dev ? function ?	# PCI-EISA bridges
    183 #pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    184 #ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    185 # XXX 'puc's aren't really bridges, but there's no better place for them here
    186 #puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
    187 
    188 # As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
    189 options 	PCIC_ISA_INTR_ALLOC_MASK=0xff47
    190 
    191 # PCMCIA bus support
    192 pcmcia* at pcic? controller ? socket ?
    193 #pcmcia* at tcic? controller ? socket ?
    194 
    195 # ISA PCMCIA controllers
    196 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
    197 pcic1	at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
    198 
    199 # EISA bus support
    200 #eisa0	at mainbus?
    201 #eisa0	at pceb?
    202 
    203 # ISA bus support
    204 isa0	at mainbus?
    205 #isa0	at pceb?
    206 #isa0	at pcib?
    207 
    208 # ISA Plug-and-Play bus support
    209 #isapnp0	at isa?
    210 
    211 # Coprocessor Support
    212 
    213 # Math Coprocessor support
    214 npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
    215 
    216 
    217 # Console Devices
    218 
    219 # ISA console
    220 pc0	at isa? port 0x60 irq 1		# pccons generic PC console driver
    221 
    222 #pcppi0	at isa?
    223 #sysbeep0	at pcppi?
    224 
    225 
    226 # Serial Devices
    227 
    228 # PCI serial interfaces
    229 #com*	at puc? port ?			# 16x50s on "universal" comm boards
    230 #cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    231 
    232 # ISA Plug-and-Play serial interfaces
    233 #com*	at isapnp?			# Modems and serial boards
    234 
    235 # PCMCIA serial interfaces
    236 #com*	at pcmcia? function ?		# Modems and serial cards
    237 
    238 # ISA serial interfaces
    239 #options 	COM_HAYESP		# adds Hayes ESP serial board support
    240 #com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
    241 #com1	at isa? port 0x2f8 irq 3
    242 #com2	at isa? port 0x3e8 irq 5
    243 #com3	at isa? port 0x2e8 irq 9
    244 #ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
    245 #com*	at ast? slave ?
    246 #boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
    247 #com*	at boca? slave ?
    248 #rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
    249 #com*	at rtfps? slave ?
    250 #cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
    251 
    252 
    253 # Parallel Printer Interfaces
    254 
    255 # PCI parallel printer interfaces
    256 #lpt*	at puc? port ?			# || ports on "universal" comm boards
    257 
    258 # ISA parallel printer interfaces
    259 #lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
    260 #lpt1	at isa? port 0x278
    261 #lpt2	at isa? port 0x3bc
    262 
    263 # I2O devices
    264 #iop*	at pci? dev ? function ?	# I/O processor
    265 #iopsp*	at iop? tid ?			# SCSI/FC-AL ports
    266 #ld*	at iop? tid ?			# block devices
    267 #dpti*	at iop? tid 0			# DPT/Adaptec control interface
    268 
    269 # SCSI Controllers and Devices
    270 
    271 # PCI SCSI controllers
    272 #ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    273 #bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    274 #dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
    275 #isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
    276 #mly*	at pci? dev ? function ?	# Mylex AcceleRAID and eXtremeRAID
    277 #siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
    278 
    279 # EISA SCSI controllers
    280 #ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
    281 #ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
    282 #bha*	at eisa? slot ?			# BusLogic 7xx SCSI
    283 #dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
    284 #uha*	at eisa? slot ?			# UltraStor 24f SCSI
    285 
    286 # PCMCIA SCSI controllers
    287 #aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    288 
    289 # ISA Plug-and-Play SCSI controllers
    290 #aic*	at isapnp?			# Adaptec AHA-1520B
    291 
    292 # ISA SCSI controllers
    293 #aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
    294 #aha1	at isa? port 0x334 irq ? drq ?
    295 #ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
    296 #aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
    297 #bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
    298 #bha1	at isa? port 0x334 irq ? drq ?
    299 # The "nca" and "dpt" probes might give false hits or hang your machine.
    300 #dpt0	at isa? port 0x170 irq ? drq ?	# DPT SmartCache/SmartRAID
    301 #nca0	at isa? port 0x360 irq 15	# Port-mapped NCR 53C80 controller
    302 #nca1	at isa? iomem 0xd8000 irq 5	# Memory-mapped controller (T128, etc.)
    303 #sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
    304 #uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
    305 #uha1	at isa? port 0x340 irq ? drq ?
    306 #wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
    307 #wds1	at isa? port 0x358 irq 11 drq 5
    308 
    309 # SCSI bus support
    310 #scsibus* at scsi?
    311 
    312 # SCSI devices
    313 #sd*	at scsibus? target ? lun ?	# SCSI disk drives
    314 #st*	at scsibus? target ? lun ?	# SCSI tape drives
    315 #cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    316 #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    317 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    318 #uk*	at scsibus? target ? lun ?	# SCSI unknown
    319 
    320 
    321 # RAID controllers and devices
    322 #aac*	at pci? dev ? function ?	# Adaptec AAC family
    323 #cac*	at eisa? slot ?			# Compaq EISA array controllers
    324 #cac*	at pci? dev ? function ?	# Compaq PCI array controllers
    325 #icp*	at pci? dev ? function ?	# ICP-Vortex GDT & Intel RAID
    326 #mlx*	at pci? dev ? function ?	# Mylex DAC960 & DEC SWXCR family
    327 #mlx*	at eisa? slot ?			# Mylex DAC960 & DEC SWXCR family
    328 #twe*	at pci? dev ? function ?	# 3ware Escalade RAID controllers
    329 
    330 #ld*	at aac? unit ?			# logical disk devices
    331 #ld*	at cac? unit ?
    332 #ld*	at icp? unit ?
    333 #ld*	at twe? unit ?
    334 #ld*	at mlx? unit ?
    335 
    336 #icpsp*	at icp? unit ?			# SCSI pass-through
    337 
    338 
    339 # IDE and related devices
    340 
    341 # PCMCIA IDE controllers
    342 wdc* 	at pcmcia? function ?
    343 
    344 # ST506, ESDI, and ISA IDE controllers
    345 # Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
    346 # fall back to 16bits I/O if 32bits I/O are not functional).
    347 # Some controllers pass the initial 32bit test, but will fail later.
    348 wdc0	at isa? port 0x1f0 irq 14 flags 0x00
    349 wdc1	at isa? port 0x170 irq 15 flags 0x00
    350 
    351 # IDE drives
    352 wd*	at wdc? drive ?			# the drives themselves
    353 
    354 # ATAPI bus support
    355 atapibus* at wdc?
    356 
    357 # ATAPI devices
    358 cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
    359 #sd*	at atapibus? drive ?		# ATAPI disk drives
    360 
    361 
    362 # Miscellaneous mass storage devices
    363 
    364 # ISA floppy
    365 fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
    366 #fdc1	at isa? port 0x370 irq ? drq ?
    367 fd*	at fdc? drive ?			# the drives themselves
    368 # some machines need you to do this instead of fd*
    369 #fd0	at fdc0 drive 0
    370 
    371 # ISA CD-ROM devices
    372 #mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
    373 
    374 # ISA tape devices
    375 # note: the wt driver conflicts unpleasantly with ed devices at the
    376 # same I/O address. The probe reprograms their EEPROMs. Don't
    377 # uncomment it unless you are actually using it.
    378 #wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
    379 
    380 
    381 # Network Interfaces
    382 
    383 # PCI network interfaces
    384 #en*	at pci? dev ? function ?	# ENI/Adaptec ATM
    385 #ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
    386 #fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
    387 #fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    388 #le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
    389 #ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    390 #tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    391 #tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    392 
    393 # EISA network interfaces
    394 #ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
    395 #fea*	at eisa? slot ?			# DEC DEFEA FDDI
    396 
    397 # ISA Plug-and-Play network interfaces
    398 #ep*	at isapnp?			# 3Com 3c509 Ethernet
    399 #ne*	at isapnp?			# NE2000-compatible Ethernet
    400 
    401 # PCMCIA network interfaces
    402 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    403 mbe*	at pcmcia? function ?		# MB8696x based Ethernet
    404 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    405 sm*	at pcmcia? function ?		# Megahertz Ethernet
    406 
    407 # ISA network interfaces
    408 ate0	at isa? port 0x2a0 irq ?		# AT1700
    409 ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
    410 eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
    411 el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
    412 ep0	at isa? port ? irq ?			# 3C509 ethernet cards
    413 ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
    414 ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
    415 fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
    416 ix0	at isa? port 0x300 irq 10		# EtherExpress/16
    417 iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
    418 lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
    419 #depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
    420 #le*	at depca?
    421 #nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
    422 #le*	at nele?
    423 #bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
    424 #le*	at bicc?
    425 ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
    426 ne1	at isa? port 0x300 irq 10
    427 sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
    428 we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    429 we1	at isa? port 0x300 iomem 0xcc000 irq 10
    430 
    431 # MII bus support
    432 #mii*	at tl?
    433 
    434 # MII PHY network interfaces
    435 #tlphy*	at mii? dev ?			# ThunderLAN PHYs
    436 #nsphy*	at mii? dev ?			# NS and compatible PHYs
    437 #ukphy*	at mii? phy ?			# generic unknown PHYs
    438 
    439 
    440 # Audio Devices
    441 
    442 # ISA Plug-and-Play audio devices
    443 #guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
    444 #sb*	at isapnp?			# SoundBlaster-compatible audio
    445 
    446 # ISA audio devices
    447 #gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
    448 #pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
    449 #pss0	at isa? port 0x220 irq 7 drq 6		# Personal Sound System
    450 #sp0	at pss0 port 0x530 irq 10 drq 0		# 	sound port driver
    451 #sb0	at isa? port 0x220 irq 7 drq 1 drq2 5	# SoundBlaster
    452 #wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
    453 
    454 # Audio support
    455 #audio*	at audiobus?
    456 
    457 # The spkr driver provides a simple tone interface to the built in speaker.
    458 #spkr0	at pcppi?		# PC speaker
    459 
    460 
    461 # Joysticks
    462 
    463 # ISA Plug-and-Play joysticks
    464 #joy*	at isapnp?			# Game ports (usually on audio cards)
    465 
    466 # ISA joysticks. Probe is a little strange; add only if you have one.
    467 #joy0	at isa? port 0x201
    468 
    469 
    470 # Miscellaneous Devices
    471 
    472 # Planetconnect Satellite receiver driver.
    473 #satlink0 at isa? port 0x300 drq 1
    474 
    475 
    476 # Pull in optional local configuration
    477 include	"arch/i386/conf/GENERIC.local"
    478 
    479 
    480 # Pseudo-Devices
    481 
    482 # disk/mass storage pseudo-devices
    483 #pseudo-device	ccd		4	# concatenated/striped disk devices
    484 pseudo-device	md		1	# memory disk device (ramdisk)
    485 #pseudo-device	vnd		4	# disk-like interface to files
    486 
    487 # network pseudo-devices
    488 #pseudo-device	bpfilter	8	# Berkeley packet filter
    489 #pseudo-device	ipfilter		# IP filter (firewall) and NAT
    490 pseudo-device	loop			# network loopback
    491 #pseudo-device	ppp		2	# Point-to-Point Protocol
    492 #pseudo-device	sl		2	# Serial Line IP
    493 #pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    494 #pseudo-device	tun		2	# network tunneling over tty
    495 
    496 # miscellaneous pseudo-devices
    497 pseudo-device	pty		2	# pseudo-terminals (Sysinst needs two)
    498 #pseudo-device	tb		1	# tablet line discipline
    499 #pseudo-device	rnd			# /dev/random and in-kernel generator
    500 #options 	RND_COM			# use "com" randomness as well (BROKEN)
    501