1# $NetBSD: INSTALL,v 1.91 2015/09/26 11:16:13 maxv Exp $ 2# 3# from: NetBSD: GENERIC,v 1.84 1999/06/06 13:00:03 mrg Exp 4# 5# floppy install kernel. try to keep this in sync with GENERIC but 6# leave as much disabled as possible. 7 8include "arch/sparc/conf/std.sparc" 9 10#options INCLUDE_CONFIG_FILE # embed config file in kernel binary 11 12makeoptions COPTS="-Os" # Optimise for space. Implies -O2 13 14maxusers 32 15 16# Enable the hooks used for initializing the root memory-disk. 17options MEMORY_DISK_HOOKS 18options MEMORY_DISK_IS_ROOT # force root on memory disk 19options MEMORY_DISK_SERVER=0 # no userspace memory disk support 20## The miniroot size must be kept in sync manually with the size of 21## the `ramdisk' image (which is built in distrib/sparc/ramdisk). 22options MEMORY_DISK_ROOT_SIZE=1800 # size of memory disk, in blocks 23options MEMORY_DISK_RBFLAGS=RB_SINGLE # boot in single-user mode 24 25pseudo-device md # memory disk device (ramdisk) 26 27## System kernel configuration. See options(4) for more detail. 28 29 30# Options for variants of the Sun SPARC architecure. 31# We currently support three architecture types; at least one is required. 32options SUN4 # sun4/100, sun4/200, sun4/300 33options SUN4C # sun4c - SS1, 1+, 2, ELC, SLC, IPC, IPX, etc. 34options SUN4M # sun4m - SS10, SS20, Classic, etc. 35 36options SUN4_MMU3L # 3-level MMU on sun4/400 37 38## System options specific to the sparc machine type 39 40# Blink the power LED on some machines to indicate the system load. 41#options BLINK 42 43## Use a faster console than the PROM's slow drawing routines. Not needed 44## for headless (no framebuffer) machines. 45#options RASTERCONSOLE # fast rasterop console 46options FONT_GALLANT12x22 # the console font 47options FONT_BOLD8x16 # a somewhat smaller font 48#options RASTERCONSOLE_FGCOL=WSCOL_BLACK 49#options RASTERCONSOLE_BGCOL=WSCOL_WHITE 50 51# wscons stuff 52#options WSEMUL_SUN 53options WSEMUL_VT100 54options WSDISPLAY_DEFAULTSCREENS=1 55#options WSDISPLAY_COMPAT_USL # wsconscfg VT handling 56options WSDISPLAY_COMPAT_RAWKBD 57options WSDISPLAY_CUSTOM_OUTPUT 58options WS_DEFAULT_FG=WSCOL_BLACK 59options WS_DEFAULT_BG=WSCOL_LIGHT_WHITE 60options WS_KERNEL_FG=WSCOL_GREEN 61options WS_KERNEL_BG=WSCOL_LIGHT_WHITE 62 63#### System options that are the same for all ports 64 65## Root device configuration: change the ?'s if you are going to use a 66## nonstandard root partition (other than where the kernel is booted from) 67## and/or nonstandard root type (not ffs or nfs). Normally this can be 68## automagically determined at boot time. 69 70config netbsd root on ? type ? 71 72## System call tracing (see ktrace(1)). 73#options KTRACE 74 75## System V compatible IPC subsystem. (msgctl(2), semctl(2), and shmctl(2)) 76#options SYSVMSG # System V message queues 77#options SYSVSEM # System V semaphores 78#options SYSVSHM # System V shared memory 79 80options USERCONF # userconf(4) support 81options PIPE_SOCKETPAIR # smaller, but slower pipe(2) 82#options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel 83 84## NFS boot options; tries DHCP/BOOTP then BOOTPARAM 85options NFS_BOOT_BOOTPARAM 86#options NFS_BOOT_BOOTP 87options NFS_BOOT_DHCP 88 89#### Debugging options 90 91## The DDB in-kernel debugger runs at panic (unless DDB_ONPANIC=0), or at 92## serial console break or keyboard reset, where the PROM would normally 93## intercept. DDB_HISTORY_SIZE adds up/down arrow command history. 94#options DDB # kernel dynamic debugger 95#options DDB_HISTORY_SIZE=100 # enable history editing in DDB 96#options DDB_ONPANIC=1 # see also sysctl(7): `ddb.onpanic' 97 98## You may also use gdb, on another computer connected to this machine over 99## a serial port. Both KGDB_DEV and KGDB_DEVRATE should be specified; 100## KGDB_DEV is a dev_t encoded device number of the serial port to use. 101## (0xc01 = ttya, 0xc02 = ttyb.) 102#options KGDB # support for kernel gdb 103#options KGDB_DEV=0xc01 # kgdb device number (this is `ttyb') 104#options KGDB_DEVRATE=38400 # baud rate 105 106 107## Compile the kernel with debugging symbols (`netbsd.gdb' is the debug file), 108## such that gdb(1) can be used on a kernel coredump. 109 110#makeoptions DEBUG="-g" 111 112 113## Adds code to the kernel that does internal consistency checks, and will 114## cause the kernel to panic if corruption of internal data structures 115## is detected. 116#options DIAGNOSTIC # extra kernel sanity checking 117 118## Enable (possibly expensive) debugging code that may also display messages 119## on the system console 120#options DEBUG 121 122#options MIIVERBOSE # verbose PHY autoconfig messages 123 124## Make SCSI error messages more verbose when explaining their meanings. 125#options SCSIVERBOSE 126 127## `INSECURE' turns off the kernel security level (securelevel = 0 always). 128## This allows writing to /dev/mem, loading kernel modules while multi-user, 129## and other insecurities good only for development work. Do not use this 130## option on a production machine. 131options INSECURE 132 133## `FDSCRIPTS' allows non-readable but executable scripts by providing a 134## pre-opened opaque file to the script interpreter. `SETUIDSCRIPTS', 135## which implies FDSCRIPTS, allows scripts to be set-user-id using the same 136## opaque file mechanism. Perl calls this "secure setuid scripts." 137 138#options FDSCRIPTS 139#options SETUIDSCRIPTS 140 141## Options for compatibility with previous releases foreign system binaries. 142## In the cases of COMPAT_SUNOS and COMPAT_SVR4, you may need to set up 143## additional user-level utilities or system configuration files. See 144## compat_sunos(8) and compat_svr4(8). 145 146#options COMPAT_43 # 4.3BSD system interfaces 147#options COMPAT_10 # NetBSD 1.0, 148#options COMPAT_11 # NetBSD 1.1, 149#options COMPAT_12 # NetBSD 1.2, 150#options COMPAT_13 # NetBSD 1.3, 151#options COMPAT_14 # NetBSD 1.4, 152#options COMPAT_15 # NetBSD 1.5, 153#options COMPAT_16 # NetBSD 1.6, 154#options COMPAT_20 # NetBSD 2.0, 155#options COMPAT_30 # NetBSD 3.0, and 156#options COMPAT_40 # NetBSD 4.0 binary compatibility. 157#options COMPAT_SUNOS # SunOS 4.x binary compatibility 158#options COMPAT_SVR4 # SunOS 5.x binary compatibility 159#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended. 160options COMPAT_BSDPTY # /dev/[pt]ty?? ptys. 161 162## File systems. You probably need at least one of FFS or NFS. 163file-system FFS # Berkeley Fast Filesystem 164file-system NFS # Sun NFS-compatible filesystem client 165#file-system KERNFS # kernel data-structure filesystem 166#file-system NULLFS # NULL layered filesystem 167file-system MFS # memory-based filesystem 168#file-system FDESC # user file descriptor filesystem 169#file-system UMAPFS # uid/gid remapping filesystem 170#file-system LFS # Log-based filesystem (still experimental) 171#file-system PROCFS # /proc 172file-system CD9660 # ISO 9660 + Rock Ridge file system 173#file-system UNION # union file system 174#file-system MSDOSFS # MS-DOS FAT filesystem(s). 175#file-system PTYFS # /dev/pts/N support 176 177## File system options 178#options NFSSERVER # Sun NFS-compatible filesystem server 179#options QUOTA # legacy UFS quotas 180#options QUOTA2 # new, in-filesystem UFS quotas 181#options FFS_EI # FFS Endian Independent support 182#options NFS_V2_ONLY # Exclude NFS3 code to save space 183options FFS_NO_SNAPSHOT # No FFS snapshot support 184options WAPBL # File system journaling support 185 186## Network protocol support. In most environments, INET is required. 187options INET # IP (Internet Protocol) v4 188#options GATEWAY # packet forwarding ("router switch") 189#options MROUTING # packet forwarding of multicast packets 190#options PIM # Protocol Independent Multicast 191#options DIRECTED_BROADCAST # allow broadcasts through routers 192#options NETATALK # AppleTalk (over Ethernet) protocol 193#options NTP # Network Time Protocol in-kernel support 194#options PPS_SYNC # Add serial line synchronization for NTP 195#options IPFILTER_LOG # Add ipmon(8) logging for ipfilter device 196#options IPFILTER_LOOKUP # ippool(8) support 197#options PPP_BSDCOMP # Add BSD compression to ppp device 198#options PPP_DEFLATE # Add deflate (libz) compression to ppp device 199#options PPP_FILTER # Add active filters for ppp (via bpf) 200#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG 201 202 203#### Main bus and CPU .. all systems. 204mainbus0 at root 205cpu0 at mainbus0 206 207#### SX rendering engine found in SS20 and SS10SX 208sx0 at mainbus0 209 210#### Bus types found on SPARC systems. 211 212sbus0 at mainbus0 # sun4c 213obio0 at mainbus0 # sun4 and sun4m 214sparcvme0 at mainbus0 # sun4 215iommu0 at mainbus0 # sun4m 216sbus0 at iommu0 # sun4m 217sparcvme0 at iommu0 # sun4m 218vme0 at sparcvme0 # mi VME attachment 219 220## SBus expander box 221xbox* at sbus? slot ? offset ? 222sbus* at xbox? 223 224## SBus to PCMCIA bridge 225# Currently enabling nell* with audioamd* causes panic at attach 226#nell* at sbus? slot ? offset ? # PCMCIA bridge 227#pcmcia* at nell? 228 229#### Standard system devices -- all required for a given architecture 230 231## Auxiliary system registers on sun4c and sun4m 232auxreg0 at mainbus0 # sun4c 233auxreg0 at obio0 # sun4m 234 235## Power status and control register on Sun4m systems 236power0 at obio0 237 238## Mostek clock found on 4/300, sun4c, and sun4m systems. 239## The Mostek clock NVRAM is the "eeprom" on sun4/300 systems. 240clock0 at mainbus0 # sun4c 241clock0 at obio0 # sun4m 242clock0 at obio0 addr 0xf2000000 # sun4/300 243 244## Intersil clock found on 4/100 and 4/200 systems. 245oclock0 at obio0 addr 0xf3000000 # sun4/200 246oclock0 at obio0 addr 0x03000000 # sun4/100 247 248## Memory error registers. 249memreg0 at mainbus0 # sun4c 250memreg0 at obio0 # sun4m 251memreg0 at obio0 addr 0xf4000000 # sun4/200 and sun4/300 252memreg0 at obio0 addr 0x04000000 # sun4/100 253 254## ECC memory control 255eccmemctl0 at mainbus0 # sun4m 256 257## Timer chip found on 4/300, sun4c, and sun4m systems. 258timer0 at mainbus0 # sun4c 259timer0 at obio0 # sun4m 260timer0 at obio0 addr 0xef000000 # sun4/300 261 262## EEPROM found on 4/100 and 4/200 systems. Note that the 4/300 263## doesn't use this driver; the `EEPROM' is in the NVRAM on the 264## Mostek clock chip on 4/300 systems. 265eeprom0 at obio0 addr 0xf2000000 # sun4/200 266eeprom0 at obio0 addr 0x02000000 # sun4/100 267 268 269#### Serial port configuration 270 271## Zilog 8530 serial chips. Each has two-channels. 272## zs0 is ttya and ttyb. zs1 is the keyboard and mouse. 273zs0 at mainbus0 # sun4c 274zs0 at obio0 # sun4m 275zs0 at obio0 addr 0xf1000000 level 12 flags 0x103 # sun4/200 and sun4/300 276zs0 at obio0 addr 0x01000000 level 12 flags 0x103 # sun4/100 277 278zs1 at mainbus0 # sun4c 279zs1 at obio0 # sun4m 280zs1 at obio0 addr 0xf0000000 level 12 flags 0x103 # sun4/200 and sun4/300 281zs1 at obio0 addr 0x00000000 level 12 flags 0x103 # sun4/100 282 283zs2 at obio0 addr 0xe0000000 level 12 # sun4/300 284 285zstty* at zs? 286 287# these are for wscons 288kbd0 at zstty? 289ms0 at zstty? 290wskbd* at wskbddev? 291wsmouse* at wsmousedev? 292 293## Magma Serial/Parallel driver 294#magma* at sbus? slot ? offset ? 295#mtty* at magma? 296#mbpp* at magma? 297 298## PCMCIA serial interfaces 299#com* at pcmcia? 300#pcmcom* at pcmcia? 301#com* at pcmcom? 302 303#### Disk controllers and disks 304 305# 306 307## The following flags may be set for the NCR53c94 based esp driver: 308## bits 0-7: disable disconnect/reselect for the corresponding target 309## bits 8-15: disable synchronous negotiation for target [bit-8] 310 311## sun4/300, sun4c, sun4m on-board SCSI, and FSBE/S SBus SCSI cards. 312## Both `dma' and `esp' are needed in all cases. 313## Two kinds of additional SBus SCSI interfaces are available. One uses 314## "esp at sbus" like the sun4c on-board; the other uses "esp at dma". 315 316## sun4/300 SCSI - an NCR53c94 or equivalent behind 317## an LSI Logic DMA controller 318 319dma0 at obio0 addr 0xfa001000 level 4 # sun4/300 320esp0 at obio0 addr 0xfa000000 level 4 flags 0x0000 # sun4/300 321 322dma0 at sbus0 slot ? offset ? # sun4c/sun4m 323esp0 at sbus0 slot ? offset ? flags 0x0000 # sun4c 324esp0 at dma0 flags 0x0000 # sun4m 325 326# FSBE/S SCSI 327dma* at sbus? slot ? offset ? # SBus 328esp* at sbus? slot ? offset ? flags 0x0000 # SBus (older proms) 329esp* at dma? flags 0x0000 # SBus 330 331scsibus* at esp? 332 333## Qlogic ISP SBus SCSI Card 334isp* at sbus? slot ? offset ? 335scsibus* at isp? 336 337## NCR5380-based "Sun SCSI 3" VME SCSI controller. 338## This driver has several flags which may be enabled by OR'ing 339## the values and using the "flags" directive. 340## Valid flags are: 341## 342## 0x01 Use DMA (may be polled) 343## 0x02 Use DMA completion interrupts 344## 0x04 Allow disconnect/reselect 345## 346## E.g. the following would enable DMA, interrupts, and reselect: 347## si0 at vme0 addr 0x200000 irq 3 vect 0x40 flags 0x07 348## 349## By default, DMA is enabled in the driver. 350 351si0 at vme0 addr 0x200000 irq 2 vect 0x40 352scsibus* at si? 353 354## NCR5380-based "SCSI Weird" on-board SCSI interface found 355## on sun4/100 systems. The flags are the same as the "si" 356## controller. Note, while DMA is enabled by default, only 357## polled DMA works at this time, and reselects do not work 358## on this particular controller. 359 360sw0 at obio0 addr 0x0a000000 level 3 361scsibus* at sw? 362 363## PCMCIA SCSI controllers 364#aic* at pcmcia? 365#scsibus* at aic? 366 367 368## These entries find devices on all SCSI busses and assign 369## unit numbers dynamically. 370sd* at scsibus? target ? lun ? # SCSI disks 371st* at scsibus? target ? lun ? # SCSI tapes 372cd* at scsibus? target ? lun ? # SCSI CD-ROMs 373#ch* at scsibus? target ? lun ? # SCSI changer devices 374#ss* at scsibus? target ? lun ? # SCSI scanners 375#uk* at scsibus? target ? lun ? # unknown SCSI 376 377 378## Xylogics 753 or 7053 VME SMD disk controllers and disks, found 379## on sun4 systems. 380xdc0 at vme0 addr 0xee80 irq 3 vect 0x44 381xdc1 at vme0 addr 0xee90 irq 3 vect 0x45 382xdc2 at vme0 addr 0xeea0 irq 3 vect 0x46 383xdc3 at vme0 addr 0xeeb0 irq 3 vect 0x47 384xd* at xdc? drive ? 385 386## Xylogics 451 or 451 VME SMD disk controllers and disks, found 387## on sun4 systems. 388xyc0 at vme0 addr 0xee40 irq 3 vect 0x48 389xyc1 at vme0 addr 0xee48 irq 3 vect 0x49 390xy* at xyc? drive ? 391 392 393## Floppy controller and drive found on SPARCstations. 394 395fdc0 at mainbus0 # sun4c controller 396fdc0 at obio0 # sun4m controller 397fd* at fdc0 # the drive itself 398 399## PCMCIA IDE controllers 400#wdc* at pcmcia? 401#wd* at wdc? 402 403## A disk-like interface to files. Can be used to create floppy, CD, 404## miniroot images, etc. 405 406#pseudo-device vnd 407 408## Concatenated and striped disks; with this, you can create a software-based 409## disk array similar to a "RAID 0" setup. See ccd(4). 410 411#pseudo-device ccd 412 413## RAIDframe disk driver: software RAID driver. See raid(4). 414 415#pseudo-device raid 416 417## Memory disk device, used on boot floppies with compressed 418## kernel-plus-root-disk images. 419 420#pseudo-device md 421 422 423#### Network interfaces 424 425## LANCE Ethernet - an AMD 7990 LANCE behind specialized DMA glue 426## Three flavors of additional SBus ethernets are available. One attaches 427## directly like the sun4c on-board, one uses the ledma device like the 428## sun4m on-board, and one uses the lebuffer device. 429 430le0 at obio0 addr 0xf9000000 level 6 # sun4/300 431le0 at sbus0 slot ? offset ? # sun4c on-board 432ledma0 at sbus0 slot ? offset ? # sun4m on-board 433le0 at ledma0 # sun4m on-board 434le* at sbus? slot ? offset ? # SBus 435ledma* at sbus? slot ? offset ? # SBus 436le* at ledma? # SBus 437lebuffer0 at sbus? slot ? offset ? # SBus 438le0 at lebuffer? # SBus 439lebuffer* at sbus? slot ? offset ? # SBus 440le* at lebuffer? # SBus 441 442 443## sun4/100 and sun4/200 Ethernet - an Intel 82586 on-board 444## or on a Multibus/VME card. 445ie0 at obio0 addr 0xf6000000 level 6 # sun4/200 on-board 446ie0 at obio0 addr 0x06000000 level 6 # sun4/100 on-board 447ie1 at vme0 addr 0xe88000 irq 3 vect 0x75 # VME 448ie2 at vme0 addr 0x31ff02 irq 3 vect 0x76 # VME 449ie3 at vme0 addr 0x35ff02 irq 3 vect 0x77 # VME 450ie4 at vme0 addr 0x2dff02 irq 3 vect 0x7c # VME 451 452## qec/be, qec/hme 453qec* at sbus? slot ? offset ? 454be* at qec? 455qe* at qec? 456 457# midway ATM 458en0 at sbus? slot ? offset ? 459 460# PCMCIA ethernet devices 461#ep* at pcmcia? 462#mbe* at pcmcia? 463#ne* at pcmcia? 464#sm* at pcmcia? 465 466# MII/PHY support 467#exphy* at mii? phy ? # 3Com internal PHYs 468#icsphy* at mii? phy ? # Integrated Circuit Systems ICS189x 469#inphy* at mii? phy ? # Intel 82555 PHYs 470#lxtphy* at mii? phy ? # Level One LXT-970 PHYs 471#nsphy* at mii? phy ? # NS83840 PHYs 472#qsphy* at mii? phy ? # Quality Semiconductor QS6612 PHYs 473#sqphy* at mii? phy ? # Seeq 80220/80221/80223 PHYs 474#tlphy* at mii? phy ? # ThunderLAN PHYs 475#ukphy* at mii? phy ? # generic unknown PHYs 476 477## Loopback network interface; required 478pseudo-device loop 479 480## SLIP and CSLIP interfaces, for IP over a serial line. 481#pseudo-device sl 482 483## PPP, the successor to SLIP. See pppd(8). 484#pseudo-device ppp 485 486## Starmode Radio IP, a special hardware network device. 487#pseudo-device strip 488 489## Network "tunnel" device, allowing protocol stacks to run in the userland. 490## This is used by the third-party user-mode "ppp" program, and others. 491#pseudo-device tun 492 493## Generic L3 over IP tunnel 494#pseudo-device gre # generic L3 over IP tunnel 495 496## Berkeley Packet Filter, required to run RARPD. A generic C-language 497## interface that allows selective examining of incoming packets. 498#pseudo-device bpfilter 499 500## IP Filter, used in firewall and NAT applications. See ipnat(8) for 501## one example of the use of the IP Filter. 502#pseudo-device ipfilter 503 504 505#### Audio and video devices 506 507## /dev/audio support (`audioamd' plus `audio') 508## 509#audioamd0 at mainbus0 # sun4c 510#audioamd0 at obio0 # sun4m 511#audioamd0 at sbus0 slot ? offset ? # sun4m 512#audio* at audioamd0 513 514#audiocs0 at sbus0 slot ? offset ? # SUNW,CS4231 515#audio* at audiocs0 516 517 518## Sun "bwtwo" black and white framebuffer, found on sun4, sun4c, and sun4m 519## systems. If your sun4 system has a cgfour installed in the P4 slot, 520## the P4 entries for "bwtwo" will attach to the overlay plane of the 521## "cgfour". 522 523bwtwo0 at sbus0 slot ? offset ? # sun4c and sun4m 524bwtwo* at sbus? slot ? offset ? # 525#bwtwo0 at obio0 addr 0xfd000000 level 4 # sun4/200 526#bwtwo0 at obio0 addr 0xfb300000 level 4 # sun4/300 in P4 slot 527#bwtwo0 at obio0 addr 0x0b300000 level 4 # sun4/100 in P4 slot 528 529## Sun "cgtwo" VME color framebuffer 530#cgtwo0 at vme0 addr 0x400000 irq ? vect 0xa8 531 532## Sun "cgthree" Sbus color framebuffer 533cgthree0 at sbus? slot ? offset ? 534cgthree* at sbus? slot ? offset ? 535 536## Sun "cgfour" color framebuffer with overlay plane. See above comment 537## regarding overlay plane. 538#cgfour0 at obio0 addr 0xfb300000 level 4 # sun4/300 P4 539#cgfour0 at obio0 addr 0x0b300000 level 4 # sun4/100 P4 540 541## Sun "cgsix" accelerated color framebuffer. 542cgsix0 at sbus? slot ? offset ? 543cgsix* at sbus? slot ? offset ? 544#cgsix0 at obio0 addr 0xfb000000 level 4 # sun4/300 P4 545#cgsix0 at obio0 addr 0x0b000000 level 4 # sun4/100 P4 546 547## Sun "cgeight" 24-bit framebuffer 548#cgeight0 at obio0 addr 0xfb300000 level 4 # sun4/300 P4 549#cgeight0 at obio0 addr 0x0b300000 level 4 # sun4/100 P4 550 551## Sun "tcx" accelerated color framebuffer. 552# there can be only one 553tcx0 at sbus? slot ? offset ? 554 555## Sun CG12 / Matrox SG3 accelerated 24bit framebuffer 556## runs monochrome only for now 557## since it occupies 3 SBus slots there's no way to use more than one 558cgtwelve0 at sbus? slot ? offset ? 559 560# Sun "cgfourteen" accelerated 24-bit framebuffer. 561cgfourteen* at obio0 # sun4m 562 563# P9100-based display on Tadpole SPARCbook 3. 564pnozz0 at sbus? slot ? offset ? 565# the SPARCbook 3 hardware docs say that accesses to P9100 registers need to be 566# 'latched in' but at least my 3GX works happily without 567# Enable it by default since we don't know which hardware really needs it. 568options PNOZZ_USE_LATCH 569 570# Sun ZX/Leo 24-bit framebuffer 571zx* at sbus? slot ? offset ? 572 573# Fujitsu AG-10e accelerated graphics 8/24-bit board 574agten* at sbus? slot ? offset ? 575 576# generic framebuffer console 577genfb* at sbus? slot ? offset ? 578 579# make sure wsdisplay0 is the console 580wsdisplay0 at wsemuldisplaydev? console 1 581wsdisplay* at wsemuldisplaydev? 582 583#### Other device configuration 584 585## Pseudo ttys, required for network logins and programs like screen. 586 587pseudo-device pty # pseudo-terminals 588 589## Random device, used to implement /dev/random (a source of random noise), 590## and generate randomness for some kernel formulae. 591 592#pseudo-device fss # file system snapshot device 593 594pseudo-device wsmux # mouse and keyboard multiplexor 595pseudo-device wsfont 596