INSTALL_TINY revision 1.125 1 # $NetBSD: INSTALL_TINY,v 1.125 2009/11/25 17:08:08 tron 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 makeoptions USE_SSP="no"
17
18 # Enable the hooks used for initializing the root memory-disk.
19 options MEMORY_DISK_HOOKS
20 options MEMORY_DISK_IS_ROOT # force root on memory disk
21 options MEMORY_DISK_SERVER=0 # no userspace memory disk support
22 options MEMORY_DISK_ROOT_SIZE=3100 # size of memory disk, in blocks
23 options MEMORY_DISK_RBFLAGS=RB_SINGLE # boot in single-user mode
24
25 maxusers 2 # estimated number of users
26
27 # CPU-related options.
28 #options VM86 # virtual 8086 emulation
29 #options USER_LDT # user-settable LDT; used by WINE
30
31 # This option allows you to force a serial console at the specified
32 # I/O address.
33 #options CONSDEVNAME="\"com\"",CONADDR=0x3f8,CONSPEED=9600
34
35 # The following options override the memory sizes passed in from the boot
36 # block. Use them *only* if the boot block is unable to determine the correct
37 # values. Note that the BIOS may *correctly* report less than 640k of base
38 # memory if the extended BIOS data area is located at the top of base memory
39 # (as is the case on most recent systems).
40 #options REALBASEMEM=... # size of base memory
41 #options REALEXTMEM=... # size of extended memory
42
43 options INSECURE # disable kernel security levels
44
45 options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT
46 #options NTP # NTP phase/frequency locked loop
47
48 #options KTRACE # system call tracing via ktrace(1)
49
50 #options SYSVSEM # System V-like semaphores
51 #options SYSVSHM # System V-like memory sharing
52
53 #options USERCONF # userconf(4) support
54 options PIPE_SOCKETPAIR # smaller, but slower pipe(2)
55 #options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel
56 no options EXEC_AOUT # we don't a.out support
57
58 # Diagnostic/debugging support options
59 #options DIAGNOSTIC # expensive kernel consistency checks
60 #options DEBUG # expensive debugging checks/support
61 #options KMEMSTATS # kernel memory statistics (vmstat -m)
62 #options DDB # in-kernel debugger
63 #options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic'
64 #options DDB_HISTORY_SIZE=512 # enable history editing in DDB
65 #options KGDB # remote debugger
66 #options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
67 #makeoptions DEBUG="-g" # compile full symbol table
68
69 # Compatibility options
70 #options COMPAT_NOMID # NetBSD 0.8, 386BSD, and BSDI
71 #options COMPAT_09 # NetBSD 0.9
72 #options COMPAT_10 # NetBSD 1.0
73 #options COMPAT_11 # NetBSD 1.1
74 #options COMPAT_12 # NetBSD 1.2, 386BSD, and BSDI
75 #options COMPAT_13 # NetBSD 1.3, 386BSD, and BSDI
76 #options COMPAT_14 # NetBSD 1.4
77 #options COMPAT_15 # NetBSD 1.5
78 #options COMPAT_16 # NetBSD 1.6
79 #options COMPAT_20 # NetBSD 2.0
80 #options COMPAT_30 # NetBSD 3.0 compatibility.
81 #options COMPAT_40 # NetBSD 4.0
82 #options COMPAT_43 # 4.3BSD, 386BSD, and BSDI
83 #options COMPAT_386BSD_MBRPART # recognize old partition ID
84 #options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended.
85
86 #options COMPAT_SVR4 # binary compatibility with SVR4
87 #options COMPAT_IBCS2 # binary compatibility with SCO and ISC
88 #options COMPAT_LINUX # binary compatibility with Linux
89 #options COMPAT_FREEBSD # binary compatibility with FreeBSD
90 options COMPAT_BSDPTY # /dev/[pt]ty?? ptys.
91
92 # File systems
93 file-system FFS # UFS
94 #file-system EXT2FS # second extended file system (linux)
95 #file-system LFS # log-structured file system
96 #file-system MFS # memory file system
97 file-system NFS # Network File System client
98 file-system CD9660 # ISO 9660 + Rock Ridge file system
99 file-system MSDOSFS # MS-DOS file system
100 #file-system FDESC # /dev/fd
101 #file-system KERNFS # /kern
102 #file-system NULLFS # loopback file system
103 #file-system PORTAL # portal filesystem (still experimental)
104 #file-system PROCFS # /proc
105 #file-system UMAPFS # NULLFS + uid and gid remapping
106 #file-system UNION # union file system
107 #file-system PTYFS # /dev/pts/N support
108 #file-system TMPFS # Efficient memory file-system
109
110 # Filesystem options
111 #options QUOTA # UFS quotas
112 #options NFSSERVER # Network File System server
113 options NFS_V2_ONLY # Exclude NFS3 code to save space
114 options FFS_NO_SNAPSHOT # No FFS snapshot support
115 #options EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
116 # immutable) behave as system flags.
117
118 # Networking options
119 #options GATEWAY # packet forwarding
120 options INET # IP + ICMP + TCP + UDP
121 #options MROUTING # IP multicast routing
122 #options PIM # Protocol Independent Multicast
123 #options ISO,TPIP # OSI
124 #options EON # OSI tunneling over IP
125 #options NETATALK # AppleTalk networking protocols
126 #options PPP_BSDCOMP # BSD-Compress compression support for PPP
127 #options PPP_DEFLATE # Deflate compression support for PPP
128 #options PPP_FILTER # Active filter support for PPP (requires bpf)
129 #options PFIL_HOOKS # pfil(9) packet filter hooks
130 #options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
131
132 # These options enable verbose messages for several subsystems.
133 # Warning, these may compile large string tables into the kernel!
134 #options EISAVERBOSE # verbose EISA device autoconfig messages
135 #options PCIVERBOSE # verbose PCI device autoconfig messages
136 #options PCI_CONFIG_DUMP # verbosely dump PCI config space
137 #options PCMCIAVERBOSE # verbose PCMCIA configuration messages
138 #options SCSIVERBOSE # human readable SCSI error messages
139
140 # Squeeze...
141 options NVNODE=50
142 options NBUF=20
143 options BUFPAGES=20
144 options NMBCLUSTERS=64
145
146 # Kernel root file system and dump configuration.
147 config netbsd root on ? type ?
148 #config netbsd root on sd0a type ffs
149 #config netbsd root on ? type nfs
150
151 #
152 # wscons options
153 #
154 # builtin terminal emulations
155 #options WSEMUL_SUN # sun terminal emulation
156 options WSEMUL_VT100 # VT100 / VT220 emulation
157 # customization of console and kernel output - see dev/wscons/wsdisplayvar.h
158 #options WSDISPLAY_CUSTOM_OUTPUT # color customization from wsconsctl(8)
159 #options WS_DEFAULT_FG=WSCOL_WHITE
160 #options WS_DEFAULT_BG=WSCOL_BLACK
161 #options WS_DEFAULT_COLATTR="(0)"
162 #options WS_DEFAULT_MONOATTR="(0)"
163 options WS_KERNEL_FG=WSCOL_GREEN
164 #options WS_KERNEL_BG=WSCOL_BLACK
165 #options WS_KERNEL_COLATTR=""
166 #options WS_KERNEL_MONOATTR=""
167 # customization of console border color
168 #options WSDISPLAY_CUSTOM_BORDER # border customization from wsconsctl(8)
169 #options WSDISPLAY_BORDER_COLOR=WSCOL_BLUE # default color
170 # compatibility to other console drivers
171 options WSDISPLAY_COMPAT_PCVT # emulate some ioctls
172 options WSDISPLAY_COMPAT_SYSCONS # emulate some ioctls
173 options WSDISPLAY_COMPAT_USL # VT handling
174 options WSDISPLAY_COMPAT_RAWKBD # can get raw scancodes
175 # see dev/pckbport/wskbdmap_mfii.c for implemented layouts
176 #options PCKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for pckbd driver
177 #options UKBD_LAYOUT="(KB_DE | KB_NODEAD)" # for ukbd driver
178 # allocate a number of virtual screens at autoconfiguration time
179 #options WSDISPLAY_DEFAULTSCREENS=4
180 # use a large software cursor that doesn't blink
181 options PCDISPLAY_SOFTCURSOR
182
183 #
184 # Device configuration
185 #
186
187 #apm0 at mainbus0 # Advanced power management
188
189
190 # Basic Bus Support
191
192 # PCI bus support
193 #pci* at mainbus? bus ?
194 #pci* at pchb? bus ?
195 #pci* at ppb? bus ?
196
197 # PCI bridges
198 #pchb* at pci? dev ? function ? # PCI-Host bridges
199 #pceb* at pci? dev ? function ? # PCI-EISA bridges
200 #pcib* at pci? dev ? function ? # PCI-ISA bridges
201 #ppb* at pci? dev ? function ? # PCI-PCI bridges
202 # XXX 'puc's aren't really bridges, but there's no better place for them here
203 #puc* at pci? dev ? function ? # PCI "universal" comm. cards
204
205 # As well as 5 and 7, avoid irq 4 and 3 because we do not probe com* here
206 options PCIC_ISA_INTR_ALLOC_MASK=0xff47
207
208 # PCMCIA bus support
209 pcmcia* at pcic? controller ? socket ?
210 #pcmcia* at tcic? controller ? socket ?
211
212 # ISA PCMCIA controllers
213 pcic0 at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
214 pcic1 at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
215
216 # EISA bus support
217 #eisa0 at mainbus?
218 #eisa0 at pceb?
219
220 # ISA bus support
221 isa0 at mainbus?
222 #isa0 at pceb?
223 #isa0 at pcib?
224
225 # ISA Plug-and-Play bus support
226 #isapnp0 at isa?
227
228 # Coprocessor Support
229
230 # Math Coprocessor support
231 npx0 at isa? port 0xf0 irq 13 # x86 math coprocessor
232
233
234 # Console Devices
235
236 # wscons
237 pckbc0 at isa? # pc keyboard controller
238 pckbd* at pckbc? # PC keyboard
239 pcdisplay0 at isa? # CGA, MDA, EGA, HGA
240 wsdisplay* at pcdisplay? console ?
241 wskbd* at pckbd? console ?
242 #wsmouse* at pms? mux 0
243
244 # Serial Devices
245
246 # PCI serial interfaces
247 #com* at puc? port ? # 16x50s on "universal" comm boards
248 #cy* at pci? dev ? function ? # Cyclades Cyclom-Y serial boards
249
250 # ISA Plug-and-Play serial interfaces
251 #com* at isapnp? # Modems and serial boards
252
253 # PCMCIA serial interfaces
254 #com* at pcmcia? function ? # Modems and serial cards
255
256 # ISA serial interfaces
257 #options COM_HAYESP # adds Hayes ESP serial board support
258 #com0 at isa? port 0x3f8 irq 4 # Standard PC serial ports
259 #com1 at isa? port 0x2f8 irq 3
260 #com2 at isa? port 0x3e8 irq 5
261 #com3 at isa? port 0x2e8 irq 9
262 #ast0 at isa? port 0x1a0 irq 5 # AST 4-port serial cards
263 #com* at ast? slave ?
264 #boca0 at isa? port 0x100 irq 5 # BOCA 8-port serial cards
265 #com* at boca? slave ?
266 #rtfps0 at isa? port 0x1230 irq 10 # RT 4-port serial cards
267 #com* at rtfps? slave ?
268 #cy0 at isa? iomem 0xd4000 irq 12 # Cyclades serial cards
269
270
271 # Parallel Printer Interfaces
272
273 # PCI parallel printer interfaces
274 #lpt* at puc? port ? # || ports on "universal" comm boards
275
276 # ISA parallel printer interfaces
277 #lpt0 at isa? port 0x378 irq 7 # standard PC parallel ports
278 #lpt1 at isa? port 0x278
279 #lpt2 at isa? port 0x3bc
280
281 # I2O devices
282 #iop* at pci? dev ? function ? # I/O processor
283 #iopsp* at iop? tid ? # SCSI/FC-AL ports
284 #ld* at iop? tid ? # block devices
285 #dpti* at iop? tid 0 # DPT/Adaptec control interface
286
287 # SCSI Controllers and Devices
288
289 # PCI SCSI controllers
290 #ahc* at pci? dev ? function ? # Adaptec [23]94x, aic78x0 SCSI
291 #bha* at pci? dev ? function ? # BusLogic 9xx SCSI
292 #dpt* at pci? dev ? function ? # DPT SmartCache/SmartRAID
293 #isp* at pci? dev ? function ? # Qlogic ISP [12]0x0 SCSI/FibreChannel
294 #mly* at pci? dev ? function ? # Mylex AcceleRAID and eXtremeRAID
295 #siop* at pci? dev ? function ? # NCR 53c8xx SCSI
296
297 # EISA SCSI controllers
298 #ahb* at eisa? slot ? # Adaptec 174[02] SCSI
299 #ahc* at eisa? slot ? # Adaptec 274x, aic7770 SCSI
300 #bha* at eisa? slot ? # BusLogic 7xx SCSI
301 #dpt* at eisa? slot ? # DPT SmartCache/SmartRAID
302 #uha* at eisa? slot ? # UltraStor 24f SCSI
303
304 # PCMCIA SCSI controllers
305 #aic* at pcmcia? function ? # Adaptec APA-1460 SCSI
306
307 # ISA Plug-and-Play SCSI controllers
308 #aic* at isapnp? # Adaptec AHA-1520B
309
310 # ISA SCSI controllers
311 #aha0 at isa? port 0x330 irq ? drq ? # Adaptec 154[02] SCSI
312 #aha1 at isa? port 0x334 irq ? drq ?
313 #ahc0 at isa? port ? irq ? # Adaptec 284x SCSI
314 #aic0 at isa? port 0x340 irq 11 # Adaptec 152[02] SCSI
315 #bha0 at isa? port 0x330 irq ? drq ? # BusLogic [457]4X SCSI
316 #bha1 at isa? port 0x334 irq ? drq ?
317 # The "nca" and "dpt" probes might give false hits or hang your machine.
318 #dpt0 at isa? port 0x170 irq ? drq ? # DPT SmartCache/SmartRAID
319 #nca0 at isa? port 0x360 irq 15 # Port-mapped NCR 53C80 controller
320 #nca1 at isa? iomem 0xd8000 irq 5 # Memory-mapped controller (T128, etc.)
321 #sea0 at isa? iomem 0xc8000 irq 5 # Seagate/Future Domain SCSI
322 #uha0 at isa? port 0x330 irq ? drq ? # UltraStor [13]4f SCSI
323 #uha1 at isa? port 0x340 irq ? drq ?
324 #wds0 at isa? port 0x350 irq 15 drq 6 # WD7000 and TMC-7000 controllers
325 #wds1 at isa? port 0x358 irq 11 drq 5
326
327 # SCSI bus support
328 #scsibus* at scsi?
329
330 # SCSI devices
331 #sd* at scsibus? target ? lun ? # SCSI disk drives
332 #st* at scsibus? target ? lun ? # SCSI tape drives
333 #cd* at scsibus? target ? lun ? # SCSI CD-ROM drives
334 #ch* at scsibus? target ? lun ? # SCSI autochangers
335 #ss* at scsibus? target ? lun ? # SCSI scanners
336 #uk* at scsibus? target ? lun ? # SCSI unknown
337
338
339 # RAID controllers and devices
340 #aac* at pci? dev ? function ? # Adaptec AAC family
341 #cac* at eisa? slot ? # Compaq EISA array controllers
342 #cac* at pci? dev ? function ? # Compaq PCI array controllers
343 #ciss* at pci? dev ? function ? # HP Smart Array controllers
344 #icp* at pci? dev ? function ? # ICP-Vortex GDT & Intel RAID
345 #mlx* at pci? dev ? function ? # Mylex DAC960 & DEC SWXCR family
346 #mlx* at eisa? slot ? # Mylex DAC960 & DEC SWXCR family
347 #twe* at pci? dev ? function ? # 3ware Escalade RAID controllers
348
349 #ld* at aac? unit ? # logical disk devices
350 #ld* at cac? unit ?
351 #ld* at icp? unit ?
352 #ld* at twe? unit ?
353 #ld* at mlx? unit ?
354
355 #icpsp* at icp? unit ? # SCSI pass-through
356
357
358 # IDE and related devices
359
360 # PCMCIA IDE controllers
361 wdc* at pcmcia? function ?
362
363 # ST506, ESDI, and ISA IDE controllers
364 # Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
365 # fall back to 16bits I/O if 32bits I/O are not functional).
366 # Some controllers pass the initial 32bit test, but will fail later.
367 wdc0 at isa? port 0x1f0 irq 14 flags 0x00
368 wdc1 at isa? port 0x170 irq 15 flags 0x00
369
370 # ATA (IDE) bus support
371 atabus* at ata?
372
373 # IDE drives
374 wd* at atabus? drive ? # the drives themselves
375
376 # ATAPI bus support
377 atapibus* at atapi?
378
379 # ATAPI devices
380 cd* at atapibus? drive ? # ATAPI CD-ROM drives
381 #sd* at atapibus? drive ? # ATAPI disk drives
382
383
384 # Miscellaneous mass storage devices
385
386 # ISA floppy
387 fdc0 at isa? port 0x3f0 irq 6 drq 2 # standard PC floppy controllers
388 #fdc1 at isa? port 0x370 irq ? drq ?
389 fd* at fdc? drive ? # the drives themselves
390 # some machines need you to do this instead of fd*
391 #fd0 at fdc0 drive 0
392
393 # ISA CD-ROM devices
394 #mcd0 at isa? port 0x300 irq 10 # Mitsumi CD-ROM drives
395
396 # ISA tape devices
397 # note: the wt driver conflicts unpleasantly with ed devices at the
398 # same I/O address. The probe reprograms their EEPROMs. Don't
399 # uncomment it unless you are actually using it.
400 #wt0 at isa? port 0x308 irq 5 drq 1 # Archive and Wangtek QIC tape drives
401
402
403 # Network Interfaces
404
405 # PCI network interfaces
406 #en* at pci? dev ? function ? # ENI/Adaptec ATM
407 #ep* at pci? dev ? function ? # 3Com 3c59x/3c90x Ethernet
408 #fpa* at pci? dev ? function ? # DEC DEFPA FDDI
409 #fxp* at pci? dev ? function ? # Intel EtherExpress PRO 10+/100B
410 #le* at pci? dev ? function ? # PCnet-PCI Ethernet
411 #ne* at pci? dev ? function ? # NE2000-compatible Ethernet
412 #tl* at pci? dev ? function ? # ThunderLAN-based Ethernet
413 #tlp* at pci? dev ? function ? # DECchip 21x4x and clones
414
415 # EISA network interfaces
416 #ep* at eisa? slot ? # 3Com 3c579 Ethernet
417 #fea* at eisa? slot ? # DEC DEFEA FDDI
418
419 # ISA Plug-and-Play network interfaces
420 #ep* at isapnp? # 3Com 3c509 Ethernet
421 #ne* at isapnp? # NE2000-compatible Ethernet
422
423 # PCMCIA network interfaces
424 ep* at pcmcia? function ? # 3Com 3c589 and 3c562 Ethernet
425 mbe* at pcmcia? function ? # MB8696x based Ethernet
426 ne* at pcmcia? function ? # NE2000-compatible Ethernet
427 sm* at pcmcia? function ? # Megahertz Ethernet
428
429 # ISA network interfaces
430 ate0 at isa? port 0x2a0 irq ? # AT1700
431 ec0 at isa? port 0x250 iomem 0xd8000 irq 9 # 3Com 3c503 Ethernet
432 #eg0 at isa? port 0x280 irq 9 # 3C505 ethernet cards
433 #el0 at isa? port 0x300 irq 9 # 3C501 ethernet cards
434 ep0 at isa? port ? irq ? # 3C509 ethernet cards
435 #ef0 at isa? port 0x360 iomem 0xd0000 irq 7 # 3C507
436 ai0 at isa? port 0x360 iomem 0xd0000 irq 7 # StarLAN
437 fmv0 at isa? port 0x2a0 irq ? # FMV-180 series
438 ix0 at isa? port 0x300 irq 10 # EtherExpress/16
439 iy0 at isa? port 0x360 irq ? # EtherExpress PRO 10 ISA
440 lc0 at isa? port 0x320 iomem ? irq ? # DEC EtherWORKS III (LEMAC)
441 #depca0 at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5 # DEPCA
442 #le* at depca?
443 #nele0 at isa? port 0x320 irq 9 drq 7 # NE2100
444 #le* at nele?
445 #bicc0 at isa? port 0x320 irq 10 drq 7 # BICC IsoLan
446 #le* at bicc?
447 ne0 at isa? port 0x280 irq 9 # NE[12]000 ethernet cards
448 ne1 at isa? port 0x300 irq 10
449 sm0 at isa? port 0x300 irq 10 # SMC91C9x Ethernet
450 we0 at isa? port 0x280 iomem 0xd0000 irq 9 # WD/SMC Ethernet
451 we1 at isa? port 0x300 iomem 0xcc000 irq 10
452
453 # MII bus support
454 #mii* at tl?
455
456 # MII PHY network interfaces
457 #tlphy* at mii? dev ? # ThunderLAN PHYs
458 #nsphy* at mii? dev ? # NS and compatible PHYs
459 #ukphy* at mii? phy ? # generic unknown PHYs
460
461
462 # Audio Devices
463
464 # ISA Plug-and-Play audio devices
465 #guspnp* at isapnp? # Gravis Ultra Sound PnP audio
466 #sb* at isapnp? # SoundBlaster-compatible audio
467
468 # ISA audio devices
469 #gus0 at isa? port 0x220 irq 7 drq 1 drq2 6 # Gravis Ultra Sound
470 #pas0 at isa? port 0x220 irq 7 drq 1 # ProAudio Spectrum
471 #sb0 at isa? port 0x220 irq 7 drq 1 drq2 5 # SoundBlaster
472 #wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 # Windows Sound System
473
474 # Audio support
475 #audio* at audiobus?
476
477 # The spkr driver provides a simple tone interface to the built in speaker.
478 #spkr0 at pcppi? # PC speaker
479
480
481 # Joysticks
482
483 # ISA Plug-and-Play joysticks
484 #joy* at isapnp? # Game ports (usually on audio cards)
485
486 # ISA joysticks. Probe is a little strange; add only if you have one.
487 #joy0 at isa? port 0x201
488
489
490 # Miscellaneous Devices
491
492 # Planetconnect Satellite receiver driver.
493 #satlink0 at isa? port 0x300 drq 1
494
495
496 # Pull in optional local configuration
497 cinclude "arch/i386/conf/INSTALL.local"
498
499
500 # Pseudo-Devices
501
502 # disk/mass storage pseudo-devices
503 #pseudo-device ccd 4 # concatenated/striped disk devices
504 #pseudo-device fss 4 # file system snapshot device
505 pseudo-device md 1 # memory disk device (ramdisk)
506 #pseudo-device vnd # disk-like interface to files
507
508 # network pseudo-devices
509 #pseudo-device bpfilter # Berkeley packet filter
510 #pseudo-device ipfilter # IP filter (firewall) and NAT
511 pseudo-device loop # network loopback
512 #pseudo-device ppp # Point-to-Point Protocol
513 #pseudo-device sl # Serial Line IP
514 #pseudo-device strip # Starmode Radio IP (Metricom)
515 #pseudo-device tun # network tunneling over tty
516
517 # miscellaneous pseudo-devices
518 pseudo-device pty 2 # pseudo-terminals (Sysinst needs two)
519 options NO_DEV_PTM
520 #pseudo-device rnd # /dev/random and in-kernel generator
521 #options RND_COM # use "com" randomness as well (BROKEN)
522