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INSTALL_TINY revision 1.54
      1 #	$NetBSD: INSTALL_TINY,v 1.54 2002/06/25 03:12:10 lukem 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=2880	# 1.44M, same as a floppy
     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 # eliminate delay no-ops in I/O; recommended on all but very old machines
     38 #options 	DUMMY_NOPS
     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 # The following options override the memory sizes passed in from the boot
     48 # block.  Use them *only* if the boot block is unable to determine the correct
     49 # values.  Note that the BIOS may *correctly* report less than 640k of base
     50 # memory if the extended BIOS data area is located at the top of base memory
     51 # (as is the case on most recent systems).
     52 #options 	REALBASEMEM=...	# size of base memory
     53 #options 	REALEXTMEM=...	# size of extended memory
     54 
     55 #options 	UCONSOLE	# users can use TIOCCONS (for xconsole)
     56 options 	INSECURE	# disable kernel security levels
     57 
     58 options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
     59 #options 	NTP		# NTP phase/frequency locked loop
     60 
     61 #options 	KTRACE		# system call tracing via ktrace(1)
     62 
     63 #options 	SYSVSEM		# System V-like semaphores
     64 #options 	SYSVSHM		# System V-like memory sharing
     65 #options 	SHMMAXPGS=1024	# 1024 pages is the default
     66 
     67 #options 	LKM		# loadable kernel modules
     68 
     69 #options 	USERCONF	# userconf(4) support
     70 options		PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
     71 
     72 # Diagnostic/debugging support options
     73 #options 	DIAGNOSTIC	# expensive kernel consistency checks
     74 #options 	DEBUG		# expensive debugging checks/support
     75 #options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
     76 #options 	DDB		# in-kernel debugger
     77 #options 	DDB_HISTORY_SIZE=512	# enable history editing in DDB
     78 #options 	KGDB		# remote debugger
     79 #options 	KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
     80 #makeoptions	DEBUG="-g"	# compile full symbol table
     81 
     82 # Compatibility options
     83 #options 	COMPAT_NOMID	# compatibility with 386BSD, BSDI, NetBSD 0.8,
     84 #options 	COMPAT_09	# NetBSD 0.9,
     85 #options 	COMPAT_10	# NetBSD 1.0,
     86 #options 	COMPAT_11	# NetBSD 1.1,
     87 #options 	COMPAT_12	# NetBSD 1.2,
     88 #options 	COMPAT_13	# NetBSD 1.3,
     89 #options 	COMPAT_14	# NetBSD 1.4,
     90 #options 	COMPAT_43	# and 4.3BSD
     91 options 	COMPAT_386BSD_MBRPART # recognize old partition ID
     92 #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
     93 
     94 #options 	COMPAT_SVR4	# binary compatibility with SVR4
     95 #options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
     96 #options 	COMPAT_LINUX	# binary compatibility with Linux
     97 #options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD
     98 
     99 # File systems
    100 file-system 	FFS		# UFS
    101 #file-system 	EXT2FS		# second extended file system (linux)
    102 #file-system 	LFS		# log-structured file system
    103 #file-system 	MFS		# memory file system
    104 file-system 	NFS		# Network File System client
    105 file-system 	CD9660		# ISO 9660 + Rock Ridge file system
    106 file-system 	MSDOSFS		# MS-DOS file system
    107 #file-system 	FDESC		# /dev/fd
    108 file-system 	KERNFS		# /kern
    109 #file-system 	NULLFS		# loopback file system
    110 #file-system 	PORTAL		# portal filesystem (still experimental)
    111 #file-system 	PROCFS		# /proc
    112 #file-system 	UMAPFS		# NULLFS + uid and gid remapping
    113 #file-system 	UNION		# union file system
    114 
    115 # Filesystem options
    116 #options 	QUOTA		# UFS quotas
    117 #options 	NFSSERVER	# Network File System server
    118 options 	NFS_V2_ONLY	# Exclude NFS3 and NQNFS code to save space
    119 options 	VNODE_OP_NOINLINE # Save space by not inlining vnode op calls
    120 #options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
    121 				# immutable) behave as system flags.
    122 
    123 # Networking options
    124 #options 	GATEWAY		# packet forwarding
    125 options 	INET		# IP + ICMP + TCP + UDP
    126 #options 	MROUTING	# IP multicast routing
    127 #options 	NS		# XNS
    128 #options 	NSIP		# XNS tunneling over IP
    129 #options 	ISO,TPIP	# OSI
    130 #options 	EON		# OSI tunneling over IP
    131 #options 	CCITT,LLC,HDLC	# X.25
    132 #options 	NETATALK	# AppleTalk networking protocols
    133 #options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
    134 #options 	PPP_DEFLATE	# Deflate compression support for PPP
    135 #options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
    136 #options 	PFIL_HOOKS	# pfil(9) packet filter hooks
    137 #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    138 
    139 # These options enable verbose messages for several subsystems.
    140 # Warning, these may compile large string tables into the kernel!
    141 #options 	EISAVERBOSE	# verbose EISA device autoconfig messages
    142 #options 	PCIVERBOSE	# verbose PCI device autoconfig messages
    143 #options 	PCI_CONFIG_DUMP	# verbosely dump PCI config space
    144 #options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
    145 #options 	SCSIVERBOSE	# human readable SCSI error messages
    146 #options 	I2OVERBOSE	# verbose I2O driver messages
    147 
    148 # Squeeze...
    149 options 	NVNODE=50
    150 options 	NBUF=20
    151 options 	BUFPAGES=20
    152 options 	NMBCLUSTERS=64
    153 
    154 # Kernel root file system and dump configuration.
    155 config		netbsd	root on ? type ?
    156 #config		netbsd	root on sd0a type ffs
    157 #config		netbsd	root on ? type nfs
    158 
    159 #
    160 # Device configuration
    161 #
    162 
    163 mainbus0 at root
    164 
    165 #apm0	at mainbus0			# Advanced power management
    166 
    167 
    168 # Basic Bus Support
    169 
    170 # PCI bus support
    171 #pci*	at mainbus? bus ?
    172 #pci*	at pchb? bus ?
    173 #pci*	at ppb? bus ?
    174 
    175 # PCI bridges
    176 #pchb*	at pci? dev ? function ?	# PCI-Host bridges
    177 #pceb*	at pci? dev ? function ?	# PCI-EISA bridges
    178 #pcib*	at pci? dev ? function ?	# PCI-ISA bridges
    179 #ppb*	at pci? dev ? function ?	# PCI-PCI bridges
    180 # XXX 'puc's aren't really bridges, but there's no better place for them here
    181 #puc*	at pci? dev ? function ?	# PCI "universal" comm. cards
    182 
    183 # As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
    184 options 	PCIC_ISA_INTR_ALLOC_MASK=0xff47
    185 
    186 # PCMCIA bus support
    187 pcmcia* at pcic? controller ? socket ?
    188 #pcmcia* at tcic? controller ? socket ?
    189 
    190 # ISA PCMCIA controllers
    191 pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
    192 pcic1	at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
    193 
    194 # EISA bus support
    195 #eisa0	at mainbus?
    196 #eisa0	at pceb?
    197 
    198 # ISA bus support
    199 isa0	at mainbus?
    200 #isa0	at pceb?
    201 #isa0	at pcib?
    202 
    203 # ISA Plug-and-Play bus support
    204 #isapnp0	at isa?
    205 
    206 # Coprocessor Support
    207 
    208 # Math Coprocessor support
    209 npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
    210 
    211 
    212 # Console Devices
    213 
    214 # ISA console
    215 pc0	at isa? port 0x60 irq 1		# pccons generic PC console driver
    216 
    217 #pcppi0	at isa?
    218 #sysbeep0	at pcppi?
    219 
    220 
    221 # Serial Devices
    222 
    223 # PCI serial interfaces
    224 #com*	at puc? port ?			# 16x50s on "universal" comm boards
    225 #cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards
    226 
    227 # ISA Plug-and-Play serial interfaces
    228 #com*	at isapnp?			# Modems and serial boards
    229 
    230 # PCMCIA serial interfaces
    231 #com*	at pcmcia? function ?		# Modems and serial cards
    232 
    233 # ISA serial interfaces
    234 #options 	COM_HAYESP		# adds Hayes ESP serial board support
    235 #com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
    236 #com1	at isa? port 0x2f8 irq 3
    237 #com2	at isa? port 0x3e8 irq 5
    238 #com3	at isa? port 0x2e8 irq 9
    239 #ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
    240 #com*	at ast? slave ?
    241 #boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
    242 #com*	at boca? slave ?
    243 #rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
    244 #com*	at rtfps? slave ?
    245 #cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards
    246 
    247 
    248 # Parallel Printer Interfaces
    249 
    250 # PCI parallel printer interfaces
    251 #lpt*	at puc? port ?			# || ports on "universal" comm boards
    252 
    253 # ISA parallel printer interfaces
    254 #lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
    255 #lpt1	at isa? port 0x278
    256 #lpt2	at isa? port 0x3bc
    257 
    258 # I2O devices
    259 #iop*	at pci? dev ? function ?	# I/O processor
    260 #iopsp*	at iop? tid ?			# SCSI/FC-AL ports
    261 #ld*	at iop? tid ?			# block devices
    262 #dpti*	at iop? tid 0			# DPT/Adaptec control interface
    263 
    264 # SCSI Controllers and Devices
    265 
    266 # PCI SCSI controllers
    267 #ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
    268 #bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
    269 #dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
    270 #isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
    271 #mly*	at pci? dev ? function ?	# Mylex AcceleRAID and eXtremeRAID
    272 #siop*	at pci? dev ? function ?	# NCR 53c8xx SCSI
    273 
    274 # EISA SCSI controllers
    275 #ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
    276 #ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
    277 #bha*	at eisa? slot ?			# BusLogic 7xx SCSI
    278 #dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID
    279 #uha*	at eisa? slot ?			# UltraStor 24f SCSI
    280 
    281 # PCMCIA SCSI controllers
    282 #aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI
    283 
    284 # ISA Plug-and-Play SCSI controllers
    285 #aic*	at isapnp?			# Adaptec AHA-1520B
    286 
    287 # ISA SCSI controllers
    288 #aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
    289 #aha1	at isa? port 0x334 irq ? drq ?
    290 #ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
    291 #aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
    292 #bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
    293 #bha1	at isa? port 0x334 irq ? drq ?
    294 # The "nca" and "dpt" probes might give false hits or hang your machine.
    295 #dpt0	at isa? port 0x170 irq ? drq ?	# DPT SmartCache/SmartRAID
    296 #nca0	at isa? port 0x360 irq 15	# Port-mapped NCR 53C80 controller
    297 #nca1	at isa? iomem 0xd8000 irq 5	# Memory-mapped controller (T128, etc.)
    298 #sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
    299 #uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
    300 #uha1	at isa? port 0x340 irq ? drq ?
    301 #wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
    302 #wds1	at isa? port 0x358 irq 11 drq 5
    303 
    304 # SCSI bus support
    305 #scsibus* at scsi?
    306 
    307 # SCSI devices
    308 #sd*	at scsibus? target ? lun ?	# SCSI disk drives
    309 #st*	at scsibus? target ? lun ?	# SCSI tape drives
    310 #cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
    311 #ch*	at scsibus? target ? lun ?	# SCSI autochangers
    312 #ss*	at scsibus? target ? lun ?	# SCSI scanners
    313 #uk*	at scsibus? target ? lun ?	# SCSI unknown
    314 
    315 
    316 # RAID controllers and devices
    317 #aac*	at pci? dev ? function ?	# Adaptec AAC family
    318 #cac*	at eisa? slot ?			# Compaq EISA array controllers
    319 #cac*	at pci? dev ? function ?	# Compaq PCI array controllers
    320 #icp*	at pci? dev ? function ?	# ICP-Vortex GDT & Intel RAID
    321 #mlx*	at pci? dev ? function ?	# Mylex DAC960 & DEC SWXCR family
    322 #mlx*	at eisa? slot ?			# Mylex DAC960 & DEC SWXCR family
    323 #twe*	at pci? dev ? function ?	# 3ware Escalade RAID controllers
    324 
    325 #ld*	at aac? unit ?			# logical disk devices
    326 #ld*	at cac? unit ?
    327 #ld*	at icp? unit ?
    328 #ld*	at twe? unit ?
    329 #ld*	at mlx? unit ?
    330 
    331 #icpsp*	at icp? unit ?			# SCSI pass-through
    332 
    333 
    334 # IDE and related devices
    335 
    336 # PCMCIA IDE controllers
    337 wdc* 	at pcmcia? function ?
    338 
    339 # ST506, ESDI, and ISA IDE controllers
    340 # Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
    341 # fall back to 16bits I/O if 32bits I/O are not functional).
    342 # Some controllers pass the initial 32bit test, but will fail later.
    343 wdc0	at isa? port 0x1f0 irq 14 flags 0x00
    344 wdc1	at isa? port 0x170 irq 15 flags 0x00
    345 
    346 # IDE drives
    347 wd*	at wdc? drive ?			# the drives themselves
    348 
    349 # ATAPI bus support
    350 atapibus* at wdc?
    351 
    352 # ATAPI devices
    353 cd*	at atapibus? drive ?		# ATAPI CD-ROM drives
    354 #sd*	at atapibus? drive ?		# ATAPI disk drives
    355 
    356 
    357 # Miscellaneous mass storage devices
    358 
    359 # ISA floppy
    360 fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
    361 #fdc1	at isa? port 0x370 irq ? drq ?
    362 fd*	at fdc? drive ?			# the drives themselves
    363 # some machines need you to do this instead of fd*
    364 #fd0	at fdc0 drive 0
    365 
    366 # ISA CD-ROM devices
    367 #mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives
    368 
    369 # ISA tape devices
    370 # note: the wt driver conflicts unpleasantly with ed devices at the
    371 # same I/O address. The probe reprograms their EEPROMs. Don't
    372 # uncomment it unless you are actually using it.
    373 #wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives
    374 
    375 
    376 # Network Interfaces
    377 
    378 # PCI network interfaces
    379 #en*	at pci? dev ? function ?	# ENI/Adaptec ATM
    380 #ep*	at pci? dev ? function ?	# 3Com 3c59x/3c90x Ethernet
    381 #fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
    382 #fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
    383 #le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
    384 #ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
    385 #tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
    386 #tlp*	at pci? dev ? function ?	# DECchip 21x4x and clones
    387 
    388 # EISA network interfaces
    389 #ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
    390 #fea*	at eisa? slot ?			# DEC DEFEA FDDI
    391 
    392 # ISA Plug-and-Play network interfaces
    393 #ep*	at isapnp?			# 3Com 3c509 Ethernet
    394 #ne*	at isapnp?			# NE2000-compatible Ethernet
    395 
    396 # PCMCIA network interfaces
    397 ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
    398 mbe*	at pcmcia? function ?		# MB8696x based Ethernet
    399 ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
    400 sm*	at pcmcia? function ?		# Megahertz Ethernet
    401 
    402 # ISA network interfaces
    403 ate0	at isa? port 0x2a0 irq ?		# AT1700
    404 ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
    405 eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
    406 el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
    407 ep0	at isa? port ? irq ?			# 3C509 ethernet cards
    408 ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
    409 ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
    410 fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
    411 ix0	at isa? port 0x300 irq 10		# EtherExpress/16
    412 iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
    413 lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
    414 #depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
    415 #le*	at depca?
    416 #nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
    417 #le*	at nele?
    418 #bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
    419 #le*	at bicc?
    420 ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
    421 ne1	at isa? port 0x300 irq 10
    422 sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
    423 we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
    424 we1	at isa? port 0x300 iomem 0xcc000 irq 10
    425 
    426 # MII bus support
    427 #mii*	at tl?
    428 
    429 # MII PHY network interfaces
    430 #tlphy*	at mii? dev ?			# ThunderLAN PHYs
    431 #nsphy*	at mii? dev ?			# NS and compatible PHYs
    432 #ukphy*	at mii? phy ?			# generic unknown PHYs
    433 
    434 
    435 # Audio Devices
    436 
    437 # ISA Plug-and-Play audio devices
    438 #guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
    439 #sb*	at isapnp?			# SoundBlaster-compatible audio
    440 
    441 # ISA audio devices
    442 #gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
    443 #pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
    444 #pss0	at isa? port 0x220 irq 7 drq 6		# Personal Sound System
    445 #sp0	at pss0 port 0x530 irq 10 drq 0		# 	sound port driver
    446 #sb0	at isa? port 0x220 irq 7 drq 1 drq2 5	# SoundBlaster
    447 #wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System
    448 
    449 # Audio support
    450 #audio*	at audiobus?
    451 
    452 # The spkr driver provides a simple tone interface to the built in speaker.
    453 #spkr0	at pcppi?		# PC speaker
    454 
    455 
    456 # Mice
    457 
    458 # ISA busmice
    459 #olms0	at isa? port 0x23c irq 5	# Logitech bus mouse
    460 #olms1	at isa? port 0x238 irq 5
    461 #omms0	at isa? port 0x23c irq 5	# Microsoft InPort mouse
    462 #omms1	at isa? port 0x238 irq 5
    463 
    464 
    465 # Joysticks
    466 
    467 # ISA Plug-and-Play joysticks
    468 #joy*	at isapnp?			# Game ports (usually on audio cards)
    469 
    470 # ISA joysticks. Probe is a little strange; add only if you have one.
    471 #joy0	at isa? port 0x201
    472 
    473 
    474 # Miscellaneous Devices
    475 
    476 # Planetconnect Satellite receiver driver.
    477 #satlink0 at isa? port 0x300 drq 1
    478 
    479 
    480 # Pull in optional local configuration
    481 include	"arch/i386/conf/GENERIC.local"
    482 
    483 
    484 # Pseudo-Devices
    485 
    486 # disk/mass storage pseudo-devices
    487 #pseudo-device	ccd		4	# concatenated/striped disk devices
    488 pseudo-device	md		1	# memory disk device (ramdisk)
    489 #pseudo-device	vnd		4	# disk-like interface to files
    490 
    491 # network pseudo-devices
    492 #pseudo-device	bpfilter	8	# Berkeley packet filter
    493 #pseudo-device	ipfilter		# IP filter (firewall) and NAT
    494 pseudo-device	loop			# network loopback
    495 #pseudo-device	ppp		2	# Point-to-Point Protocol
    496 #pseudo-device	sl		2	# Serial Line IP
    497 #pseudo-device	strip		2	# Starmode Radio IP (Metricom)
    498 #pseudo-device	tun		2	# network tunneling over tty
    499 
    500 # miscellaneous pseudo-devices
    501 pseudo-device	pty		2	# pseudo-terminals (Sysinst needs two)
    502 #pseudo-device	tb		1	# tablet line discipline
    503 #pseudo-device	rnd			# /dev/random and in-kernel generator
    504 #options 	RND_COM			# use "com" randomness as well (BROKEN)
    505