INSTALL_TINY revision 1.114 1 # $NetBSD: INSTALL_TINY,v 1.114 2007/11/14 17:54:58 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
11 include "arch/i386/conf/std.i386"
12
13 #options INCLUDE_CONFIG_FILE # embed config file in kernel binary
14
15 makeoptions COPTS="-Os" # Optimise for space. Implies -O2
16
17 # Enable the hooks used for initializing the root memory-disk.
18 options MEMORY_DISK_HOOKS
19 options MEMORY_DISK_IS_ROOT # force root on memory disk
20 options MEMORY_DISK_SERVER=0 # no userspace memory disk support
21 options MEMORY_DISK_ROOT_SIZE=3100 # size of memory disk, in blocks
22
23 maxusers 2 # estimated number of users
24
25 # CPU support.
26 options I386_CPU
27
28 # CPU-related options.
29 options MATH_EMULATE # floating point emulation
30 #options VM86 # virtual 8086 emulation
31 #options USER_LDT # user-settable LDT; used by WINE
32 # insert delay no-ops in interrupts; recommended on very old machines
33 options PIC_DELAY
34
35 # This option allows you to force a serial console at the specified
36 # I/O address.
37 #options CONSDEVNAME="\"com\"",CONADDR=0x3f8,CONSPEED=9600
38
39 # Save a physical page per process by not setting a kernel stack red zone.
40 options NOREDZONE
41
42 # The following options override the memory sizes passed in from the boot
43 # block. Use them *only* if the boot block is unable to determine the correct
44 # values. Note that the BIOS may *correctly* report less than 640k of base
45 # memory if the extended BIOS data area is located at the top of base memory
46 # (as is the case on most recent systems).
47 #options REALBASEMEM=... # size of base memory
48 #options REALEXTMEM=... # size of extended memory
49
50 options INSECURE # disable kernel security levels
51
52 options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT
53 #options NTP # NTP phase/frequency locked loop
54
55 #options KTRACE # system call tracing via ktrace(1)
56
57 #options SYSVSEM # System V-like semaphores
58 #options SYSVSHM # System V-like memory sharing
59 #options SHMMAXPGS=2048 # 2048 pages is the default
60
61 #options LKM # loadable kernel modules
62
63 #options USERCONF # userconf(4) support
64 options PIPE_SOCKETPAIR # smaller, but slower pipe(2)
65 #options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel
66 no options EXEC_AOUT # we don't a.out support
67
68 # Diagnostic/debugging support options
69 #options DIAGNOSTIC # expensive kernel consistency checks
70 #options DEBUG # expensive debugging checks/support
71 #options KMEMSTATS # kernel memory statistics (vmstat -m)
72 #options DDB # in-kernel debugger
73 #options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic'
74 #options DDB_HISTORY_SIZE=512 # enable history editing in DDB
75 #options KGDB # remote debugger
76 #options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
77 #makeoptions DEBUG="-g" # compile full symbol table
78
79 # Compatibility options
80 #options COMPAT_NOMID # NetBSD 0.8, 386BSD, and BSDI
81 #options COMPAT_09 # NetBSD 0.9
82 #options COMPAT_10 # NetBSD 1.0
83 #options COMPAT_11 # NetBSD 1.1
84 #options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI
85 #options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI
86 #options COMPAT_14 # NetBSD 1.4
87 #options COMPAT_15 # NetBSD 1.5
88 #options COMPAT_16 # NetBSD 1.6
89 #options COMPAT_20 # NetBSD 2.0
90 #options COMPAT_30 # NetBSD 3.0 compatibility.
91 #options COMPAT_40 # NetBSD 4.0
92 #options COMPAT_43 # 4.3BSD, 386BSD, and BSDI
93 #options COMPAT_386BSD_MBRPART # recognize old partition ID
94 #options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended.
95
96 #options COMPAT_SVR4 # binary compatibility with SVR4
97 #options COMPAT_IBCS2 # binary compatibility with SCO and ISC
98 #options COMPAT_LINUX # binary compatibility with Linux
99 #options COMPAT_FREEBSD # binary compatibility with FreeBSD
100 options COMPAT_BSDPTY # /dev/[pt]ty?? ptys.
101
102 # File systems
103 file-system FFS # UFS
104 #file-system EXT2FS # second extended file system (linux)
105 #file-system LFS # log-structured file system
106 #file-system MFS # memory file system
107 file-system NFS # Network File System client
108 file-system CD9660 # ISO 9660 + Rock Ridge file system
109 file-system MSDOSFS # MS-DOS file system
110 #file-system FDESC # /dev/fd
111 #file-system KERNFS # /kern
112 #file-system NULLFS # loopback file system
113 #file-system PORTAL # portal filesystem (still experimental)
114 #file-system PROCFS # /proc
115 #file-system UMAPFS # NULLFS + uid and gid remapping
116 #file-system UNION # union file system
117 #file-system PTYFS # /dev/pts/N support
118 #file-system TMPFS # Efficient memory 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 code to save space
124 options FFS_NO_SNAPSHOT # No FFS snapshot support
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 PIM # Protocol Independent Multicast
133 #options ISO,TPIP # OSI
134 #options EON # OSI tunneling over IP
135 #options NETATALK # AppleTalk networking protocols
136 #options PPP_BSDCOMP # BSD-Compress compression support for PPP
137 #options PPP_DEFLATE # Deflate compression support for PPP
138 #options PPP_FILTER # Active filter support for PPP (requires bpf)
139 #options PFIL_HOOKS # pfil(9) packet filter hooks
140 #options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
141
142 # These options enable verbose messages for several subsystems.
143 # Warning, these may compile large string tables into the kernel!
144 #options EISAVERBOSE # verbose EISA device autoconfig messages
145 #options PCIVERBOSE # verbose PCI device autoconfig messages
146 #options PCI_CONFIG_DUMP # verbosely dump PCI config space
147 #options PCMCIAVERBOSE # verbose PCMCIA configuration messages
148 #options SCSIVERBOSE # human readable SCSI error messages
149
150 # Squeeze...
151 options NVNODE=50
152 options NBUF=20
153 options BUFPAGES=20
154 options NMBCLUSTERS=64
155
156 # Kernel root file system and dump configuration.
157 config netbsd root on ? type ?
158 #config netbsd root on sd0a type ffs
159 #config netbsd root on ? type nfs
160
161 #
162 # wscons options
163 #
164 # builtin terminal emulations
165 #options WSEMUL_SUN # sun terminal emulation
166 options WSEMUL_VT100 # VT100 / VT220 emulation
167 # customization of console and kernel output - see dev/wscons/wsdisplayvar.h
168 #options WSDISPLAY_CUSTOM_OUTPUT # color customization from wsconsctl(8)
169 #options WS_DEFAULT_FG=WSCOL_WHITE
170 #options WS_DEFAULT_BG=WSCOL_BLACK
171 #options WS_DEFAULT_COLATTR="(0)"
172 #options WS_DEFAULT_MONOATTR="(0)"
173 options WS_KERNEL_FG=WSCOL_GREEN
174 #options WS_KERNEL_BG=WSCOL_BLACK
175 #options WS_KERNEL_COLATTR=""
176 #options WS_KERNEL_MONOATTR=""
177 # customization of console border color
178 #options WSDISPLAY_CUSTOM_BORDER # border customization from wsconsctl(8)
179 #options WSDISPLAY_BORDER_COLOR=WSCOL_BLUE # default color
180 # compatibility to other console drivers
181 options WSDISPLAY_COMPAT_PCVT # emulate some ioctls
182 options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls
183 options WSDISPLAY_COMPAT_USL # VT handling
184 options WSDISPLAY_COMPAT_RAWKBD # can get raw scancodes
185 # see dev/pckbport/wskbdmap_mfii.c for implemented layouts
186 #options PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver
187 #options UKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for ukbd driver
188 # allocate a number of virtual screens at autoconfiguration time
189 #options WSDISPLAY_DEFAULTSCREENS=4
190 # use a large software cursor that doesn't blink
191 options PCDISPLAY_SOFTCURSOR
192
193 #
194 # Device configuration
195 #
196
197 mainbus0 at root
198 cpu0 at mainbus0
199 #apm0 at mainbus0 # Advanced power management
200
201
202 # Basic Bus Support
203
204 # PCI bus support
205 #pci* at mainbus? bus ?
206 #pci* at pchb? bus ?
207 #pci* at ppb? bus ?
208
209 # PCI bridges
210 #pchb* at pci? dev ? function ? # PCI-Host bridges
211 #pceb* at pci? dev ? function ? # PCI-EISA bridges
212 #pcib* at pci? dev ? function ? # PCI-ISA bridges
213 #ppb* at pci? dev ? function ? # PCI-PCI bridges
214 # XXX 'puc's aren't really bridges, but there's no better place for them here
215 #puc* at pci? dev ? function ? # PCI "universal" comm. cards
216
217 # As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
218 options PCIC_ISA_INTR_ALLOC_MASK=0xff47
219
220 # PCMCIA bus support
221 pcmcia* at pcic? controller ? socket ?
222 #pcmcia* at tcic? controller ? socket ?
223
224 # ISA PCMCIA controllers
225 pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
226 pcic1 at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
227
228 # EISA bus support
229 #eisa0 at mainbus?
230 #eisa0 at pceb?
231
232 # ISA bus support
233 isa0 at mainbus?
234 #isa0 at pceb?
235 #isa0 at pcib?
236
237 # ISA Plug-and-Play bus support
238 #isapnp0 at isa?
239
240 # Coprocessor Support
241
242 # Math Coprocessor support
243 npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor
244
245
246 # Console Devices
247
248 # wscons
249 pckbc0 at isa? # pc keyboard controller
250 pckbd* at pckbc? # PC keyboard
251 pcdisplay0 at isa? # CGA, MDA, EGA, HGA
252 wsdisplay* at pcdisplay? console ?
253 wskbd* at pckbd? console ?
254 #wsmouse* at pms? mux 0
255
256 # Serial Devices
257
258 # PCI serial interfaces
259 #com* at puc? port ? # 16x50s on "universal" comm boards
260 #cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards
261
262 # ISA Plug-and-Play serial interfaces
263 #com* at isapnp? # Modems and serial boards
264
265 # PCMCIA serial interfaces
266 #com* at pcmcia? function ? # Modems and serial cards
267
268 # ISA serial interfaces
269 #options COM_HAYESP # adds Hayes ESP serial board support
270 #com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports
271 #com1 at isa? port 0x2f8 irq 3
272 #com2 at isa? port 0x3e8 irq 5
273 #com3 at isa? port 0x2e8 irq 9
274 #ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards
275 #com* at ast? slave ?
276 #boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards
277 #com* at boca? slave ?
278 #rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards
279 #com* at rtfps? slave ?
280 #cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards
281
282
283 # Parallel Printer Interfaces
284
285 # PCI parallel printer interfaces
286 #lpt* at puc? port ? # || ports on "universal" comm boards
287
288 # ISA parallel printer interfaces
289 #lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports
290 #lpt1 at isa? port 0x278
291 #lpt2 at isa? port 0x3bc
292
293 # I2O devices
294 #iop* at pci? dev ? function ? # I/O processor
295 #iopsp* at iop? tid ? # SCSI/FC-AL ports
296 #ld* at iop? tid ? # block devices
297 #dpti* at iop? tid 0 # DPT/Adaptec control interface
298
299 # SCSI Controllers and Devices
300
301 # PCI SCSI controllers
302 #ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI
303 #bha* at pci? dev ? function ? # BusLogic 9xx SCSI
304 #dpt* at pci? dev ? function ? # DPT SmartCache/SmartRAID
305 #isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel
306 #mly* at pci? dev ? function ? # Mylex AcceleRAID and eXtremeRAID
307 #siop* at pci? dev ? function ? # NCR 53c8xx SCSI
308
309 # EISA SCSI controllers
310 #ahb* at eisa? slot ? # Adaptec 174[02] SCSI
311 #ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI
312 #bha* at eisa? slot ? # BusLogic 7xx SCSI
313 #dpt* at eisa? slot ? # DPT SmartCache/SmartRAID
314 #uha* at eisa? slot ? # UltraStor 24f SCSI
315
316 # PCMCIA SCSI controllers
317 #aic* at pcmcia? function ? # Adaptec APA-1460 SCSI
318
319 # ISA Plug-and-Play SCSI controllers
320 #aic* at isapnp? # Adaptec AHA-1520B
321
322 # ISA SCSI controllers
323 #aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI
324 #aha1 at isa? port 0x334 irq ? drq ?
325 #ahc0 at isa? port ? irq ? # Adaptec 284x SCSI
326 #aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI
327 #bha0 at isa? port 0x330 irq ? drq ? # BusLogic [457]4X SCSI
328 #bha1 at isa? port 0x334 irq ? drq ?
329 # The "nca" and "dpt" probes might give false hits or hang your machine.
330 #dpt0 at isa? port 0x170 irq ? drq ? # DPT SmartCache/SmartRAID
331 #nca0 at isa? port 0x360 irq 15 # Port-mapped NCR 53C80 controller
332 #nca1 at isa? iomem 0xd8000 irq 5 # Memory-mapped controller (T128, etc.)
333 #sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI
334 #uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI
335 #uha1 at isa? port 0x340 irq ? drq ?
336 #wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers
337 #wds1 at isa? port 0x358 irq 11 drq 5
338
339 # SCSI bus support
340 #scsibus* at scsi?
341
342 # SCSI devices
343 #sd* at scsibus? target ? lun ? # SCSI disk drives
344 #st* at scsibus? target ? lun ? # SCSI tape drives
345 #cd* at scsibus? target ? lun ? # SCSI CD-ROM drives
346 #ch* at scsibus? target ? lun ? # SCSI autochangers
347 #ss* at scsibus? target ? lun ? # SCSI scanners
348 #uk* at scsibus? target ? lun ? # SCSI unknown
349
350
351 # RAID controllers and devices
352 #aac* at pci? dev ? function ? # Adaptec AAC family
353 #cac* at eisa? slot ? # Compaq EISA array controllers
354 #cac* at pci? dev ? function ? # Compaq PCI array controllers
355 #ciss* at pci? dev ? function ? # HP Smart Array controllers
356 #icp* at pci? dev ? function ? # ICP-Vortex GDT & Intel RAID
357 #mlx* at pci? dev ? function ? # Mylex DAC960 & DEC SWXCR family
358 #mlx* at eisa? slot ? # Mylex DAC960 & DEC SWXCR family
359 #twe* at pci? dev ? function ? # 3ware Escalade RAID controllers
360
361 #ld* at aac? unit ? # logical disk devices
362 #ld* at cac? unit ?
363 #ld* at icp? unit ?
364 #ld* at twe? unit ?
365 #ld* at mlx? unit ?
366
367 #icpsp* at icp? unit ? # SCSI pass-through
368
369
370 # IDE and related devices
371
372 # PCMCIA IDE controllers
373 wdc* at pcmcia? function ?
374
375 # ST506, ESDI, and ISA IDE controllers
376 # Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
377 # fall back to 16bits I/O if 32bits I/O are not functional).
378 # Some controllers pass the initial 32bit test, but will fail later.
379 wdc0 at isa? port 0x1f0 irq 14 flags 0x00
380 wdc1 at isa? port 0x170 irq 15 flags 0x00
381
382 # ATA (IDE) bus support
383 atabus* at ata?
384
385 # IDE drives
386 wd* at atabus? drive ? # the drives themselves
387
388 # ATAPI bus support
389 atapibus* at atapi?
390
391 # ATAPI devices
392 cd* at atapibus? drive ? # ATAPI CD-ROM drives
393 #sd* at atapibus? drive ? # ATAPI disk drives
394
395
396 # Miscellaneous mass storage devices
397
398 # ISA floppy
399 fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers
400 #fdc1 at isa? port 0x370 irq ? drq ?
401 fd* at fdc? drive ? # the drives themselves
402 # some machines need you to do this instead of fd*
403 #fd0 at fdc0 drive 0
404
405 # ISA CD-ROM devices
406 #mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives
407
408 # ISA tape devices
409 # note: the wt driver conflicts unpleasantly with ed devices at the
410 # same I/O address. The probe reprograms their EEPROMs. Don't
411 # uncomment it unless you are actually using it.
412 #wt0 at isa? port 0x308 irq 5 drq 1 # Archive and Wangtek QIC tape drives
413
414
415 # Network Interfaces
416
417 # PCI network interfaces
418 #en* at pci? dev ? function ? # ENI/Adaptec ATM
419 #ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet
420 #fpa* at pci? dev ? function ? # DEC DEFPA FDDI
421 #fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B
422 #le* at pci? dev ? function ? # PCnet-PCI Ethernet
423 #ne* at pci? dev ? function ? # NE2000-compatible Ethernet
424 #tl* at pci? dev ? function ? # ThunderLAN-based Ethernet
425 #tlp* at pci? dev ? function ? # DECchip 21x4x and clones
426
427 # EISA network interfaces
428 #ep* at eisa? slot ? # 3Com 3c579 Ethernet
429 #fea* at eisa? slot ? # DEC DEFEA FDDI
430
431 # ISA Plug-and-Play network interfaces
432 #ep* at isapnp? # 3Com 3c509 Ethernet
433 #ne* at isapnp? # NE2000-compatible Ethernet
434
435 # PCMCIA network interfaces
436 ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet
437 mbe* at pcmcia? function ? # MB8696x based Ethernet
438 ne* at pcmcia? function ? # NE2000-compatible Ethernet
439 sm* at pcmcia? function ? # Megahertz Ethernet
440
441 # ISA network interfaces
442 ate0 at isa? port 0x2a0 irq ? # AT1700
443 ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet
444 #eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards
445 #el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards
446 ep0 at isa? port ? irq ? # 3C509 ethernet cards
447 #ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507
448 ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN
449 fmv0 at isa? port 0x2a0 irq ? # FMV-180 series
450 ix0 at isa? port 0x300 irq 10 # EtherExpress/16
451 iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA
452 lc0 at isa? port 0x320 iomem ? irq ? # DEC EtherWORKS III (LEMAC)
453 #depca0 at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5 # DEPCA
454 #le* at depca?
455 #nele0 at isa? port 0x320 irq 9 drq 7 # NE2100
456 #le* at nele?
457 #bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan
458 #le* at bicc?
459 ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
460 ne1 at isa? port 0x300 irq 10
461 sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet
462 we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet
463 we1 at isa? port 0x300 iomem 0xcc000 irq 10
464
465 # MII bus support
466 #mii* at tl?
467
468 # MII PHY network interfaces
469 #tlphy* at mii? dev ? # ThunderLAN PHYs
470 #nsphy* at mii? dev ? # NS and compatible PHYs
471 #ukphy* at mii? phy ? # generic unknown PHYs
472
473
474 # Audio Devices
475
476 # ISA Plug-and-Play audio devices
477 #guspnp* at isapnp? # Gravis Ultra Sound PnP audio
478 #sb* at isapnp? # SoundBlaster-compatible audio
479
480 # ISA audio devices
481 #gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound
482 #pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum
483 #sb0 at isa? port 0x220 irq 7 drq 1 drq2 5 # SoundBlaster
484 #wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System
485
486 # Audio support
487 #audio* at audiobus?
488
489 # The spkr driver provides a simple tone interface to the built in speaker.
490 #spkr0 at pcppi? # PC speaker
491
492
493 # Joysticks
494
495 # ISA Plug-and-Play joysticks
496 #joy* at isapnp? # Game ports (usually on audio cards)
497
498 # ISA joysticks. Probe is a little strange; add only if you have one.
499 #joy0 at isa? port 0x201
500
501
502 # Miscellaneous Devices
503
504 # Planetconnect Satellite receiver driver.
505 #satlink0 at isa? port 0x300 drq 1
506
507
508 # Pull in optional local configuration
509 include "arch/i386/conf/INSTALL.local"
510
511
512 # Pseudo-Devices
513
514 # disk/mass storage pseudo-devices
515 #pseudo-device ccd 4 # concatenated/striped disk devices
516 #pseudo-device fss 4 # file system snapshot device
517 pseudo-device md 1 # memory disk device (ramdisk)
518 #pseudo-device vnd # disk-like interface to files
519
520 # network pseudo-devices
521 #pseudo-device bpfilter # Berkeley packet filter
522 #pseudo-device ipfilter # IP filter (firewall) and NAT
523 pseudo-device loop # network loopback
524 #pseudo-device ppp # Point-to-Point Protocol
525 #pseudo-device sl # Serial Line IP
526 #pseudo-device strip # Starmode Radio IP (Metricom)
527 #pseudo-device tun # network tunneling over tty
528
529 # miscellaneous pseudo-devices
530 pseudo-device pty 2 # pseudo-terminals (Sysinst needs two)
531 options NO_DEV_PTM
532 #pseudo-device rnd # /dev/random and in-kernel generator
533 #options RND_COM # use "com" randomness as well (BROKEN)
534