INSTALL revision 1.72
1# $NetBSD: INSTALL,v 1.72 2009/12/05 20:11:17 pooka 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 1 # 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 46#options FONT_GALLANT12x22 # the console font 47#options FONT_BOLD8x16 # a somewhat smaller font 48#options RASTERCONSOLE_FGCOL=WSCOL_BLACK 49#options RASTERCONSOLE_BGCOL=WSCOL_WHITE 50 51# wscons stuff 52options WSEMUL_SUN 53#options WSEMUL_VT100 54options WSDISPLAY_COMPAT_RAWKBD 55options WSDISPLAY_CUSTOM_OUTPUT 56options WS_DEFAULT_FG=WSCOL_BLACK 57options WS_DEFAULT_BG=WSCOL_LIGHT_WHITE 58options WS_KERNEL_FG=WSCOL_GREEN 59options WS_KERNEL_BG=WSCOL_LIGHT_WHITE 60 61#### System options that are the same for all ports 62 63## Root device configuration: change the ?'s if you are going to use a 64## nonstandard root partition (other than where the kernel is booted from) 65## and/or nonstandard root type (not ffs or nfs). Normally this can be 66## automagically determined at boot time. 67 68config netbsd root on ? type ? 69 70## System call tracing (see ktrace(1)). 71#options KTRACE 72 73## Collect statistics on kernel malloc's and free's. This does have a 74## significant performance hit on slower machines, so it is intended for 75## diagnostic use only. 76#options KMEMSTATS 77 78## System V compatible IPC subsystem. (msgctl(2), semctl(2), and shmctl(2)) 79#options SYSVMSG # System V message queues 80#options SYSVSEM # System V semaphores 81#options SYSVSHM # System V shared memory 82 83## Loadable kernel module support; still under development. 84 85options USERCONF # userconf(4) support 86options PIPE_SOCKETPAIR # smaller, but slower pipe(2) 87#options SYSCTL_INCLUDE_DESCR # Include sysctl descriptions in kernel 88 89## NFS boot options; tries DHCP/BOOTP then BOOTPARAM 90options NFS_BOOT_BOOTPARAM 91#options NFS_BOOT_BOOTP 92options NFS_BOOT_DHCP 93 94#### Debugging options 95 96## The DDB in-kernel debugger runs at panic (unless DDB_ONPANIC=0), or at 97## serial console break or keyboard reset, where the PROM would normally 98## intercept. DDB_HISTORY_SIZE adds up/down arrow command history. 99#options DDB # kernel dynamic debugger 100#options DDB_HISTORY_SIZE=100 # enable history editing in DDB 101#options DDB_ONPANIC=1 # see also sysctl(8): `ddb.onpanic' 102 103## You may also use gdb, on another computer connected to this machine over 104## a serial port. Both KGDB_DEV and KGDB_DEVRATE should be specified; 105## KGDB_DEV is a dev_t encoded device number of the serial port to use. 106## (0xc01 = ttya, 0xc02 = ttyb.) 107#options KGDB # support for kernel gdb 108#options KGDB_DEV=0xc01 # kgdb device number (this is `ttyb') 109#options KGDB_DEVRATE=38400 # baud rate 110 111 112## Compile the kernel with debugging symbols (`netbsd.gdb' is the debug file), 113## such that gdb(1) can be used on a kernel coredump. 114 115#makeoptions DEBUG="-g" 116 117 118## Adds code to the kernel that does internal consistency checks, and will 119## cause the kernel to panic if corruption of internal data structures 120## is detected. 121#options DIAGNOSTIC # extra kernel sanity checking 122 123## Enable (possibly expensive) debugging code that may also display messages 124## on the system console 125#options DEBUG 126 127#options MIIVERBOSE # verbose PHY autoconfig messages 128 129## Make SCSI error messages more verbose when explaining their meanings. 130#options SCSIVERBOSE 131 132## `INSECURE' turns off the kernel security level (securelevel = 0 always). 133## This allows writing to /dev/mem, loading kernel modules while multi-user, 134## and other insecurities good only for development work. Do not use this 135## option on a production machine. 136options INSECURE 137 138## `FDSCRIPTS' allows non-readable but executable scripts by providing a 139## pre-opened opaque file to the script interpreter. `SETUIDSCRIPTS', 140## which implies FDSCRIPTS, allows scripts to be set-user-id using the same 141## opaque file mechanism. Perl calls this "secure setuid scripts." 142 143#options FDSCRIPTS 144#options SETUIDSCRIPTS 145 146## Options for compatibility with previous releases foreign system binaries. 147## In the cases of COMPAT_SUNOS and COMPAT_SVR4, you may need to set up 148## additional user-level utilities or system configuration files. See 149## compat_sunos(8) and compat_svr4(8). 150 151#options COMPAT_43 # 4.3BSD system interfaces 152#options COMPAT_10 # NetBSD 1.0 binary compatibility 153#options COMPAT_11 # NetBSD 1.1 binary compatibility 154#options COMPAT_12 # NetBSD 1.2 binary compatibility 155#options COMPAT_13 # NetBSD 1.3 binary compatibility 156#options COMPAT_14 # NetBSD 1.4 binary compatibility 157#options COMPAT_15 # NetBSD 1.5 binary compatibility 158#options COMPAT_16 # NetBSD 1.6 binary compatibility 159#options COMPAT_20 # NetBSD 2.0 binary compatibility 160#options COMPAT_30 # NetBSD 3.0 binary compatibility 161#options COMPAT_40 # NetBSD 4.0 binary compatibility 162#options COMPAT_SUNOS # SunOS 4.x binary compatibility 163#options COMPAT_SVR4 # SunOS 5.x binary compatibility 164#options TCP_COMPAT_42 # 4.2BSD TCP/IP bug compat. Not recommended. 165options COMPAT_BSDPTY # /dev/[pt]ty?? ptys. 166 167## File systems. You probably need at least one of FFS or NFS. 168file-system FFS # Berkeley Fast Filesystem 169file-system NFS # Sun NFS-compatible filesystem client 170#file-system KERNFS # kernel data-structure filesystem 171#file-system NULLFS # NULL layered filesystem 172file-system MFS # memory-based filesystem 173#file-system FDESC # user file descriptor filesystem 174#file-system UMAPFS # uid/gid remapping filesystem 175#file-system LFS # Log-based filesystem (still experimental) 176#file-system PROCFS # /proc 177file-system CD9660 # ISO 9660 + Rock Ridge file system 178#file-system UNION # union file system 179#file-system MSDOSFS # MS-DOS FAT filesystem(s). 180#file-system PTYFS # /dev/pts/N support 181 182## File system options 183#options NFSSERVER # Sun NFS-compatible filesystem server 184#options QUOTA # FFS quotas 185#options FFS_EI # FFS Endian Independent support 186#options NFS_V2_ONLY # Exclude NFS3 code to save space 187options FFS_NO_SNAPSHOT # No FFS snapshot support 188options WAPBL # File system journaling support - Experimental 189 190## Network protocol support. In most environments, INET is required. 191options INET # IP (Internet Protocol) v4 192#options GATEWAY # packet forwarding ("router switch") 193#options MROUTING # packet forwarding of multicast packets 194#options PIM # Protocol Independent Multicast 195#options DIRECTED_BROADCAST # allow broadcasts through routers 196#options ISO,TPIP # OSI networking 197#options EON # OSI tunneling over IP 198#options NETATALK # AppleTalk (over Ethernet) protocol 199#options NTP # Network Time Protocol in-kernel support 200#options PPS_SYNC # Add serial line synchronization for NTP 201#options PFIL_HOOKS # Add pfil(9) hooks, intended for custom LKMs. 202#options IPFILTER_LOG # Add ipmon(8) logging for ipfilter device 203#options IPFILTER_LOOKUP # ippool(8) support 204#options PPP_BSDCOMP # Add BSD compression to ppp device 205#options PPP_DEFLATE # Add deflate (libz) compression to ppp device 206#options PPP_FILTER # Add active filters for ppp (via bpf) 207#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG 208 209 210#### Main bus and CPU .. all systems. 211mainbus0 at root 212cpu0 at mainbus0 213 214#### Bus types found on SPARC systems. 215 216sbus0 at mainbus0 # sun4c 217obio0 at mainbus0 # sun4 and sun4m 218sparcvme0 at mainbus0 # sun4 219iommu0 at mainbus0 # sun4m 220sbus0 at iommu0 # sun4m 221sparcvme0 at iommu0 # sun4m 222vme0 at sparcvme0 # mi VME attachment 223 224## SBus expander box 225xbox* at sbus? slot ? offset ? 226sbus* at xbox? 227 228## SBus to PCMCIA bridge 229# Currently enabling nell* with audioamd* causes panic at attach 230#nell* at sbus? slot ? offset ? # PCMCIA bridge 231#pcmcia* at nell? 232 233#### Standard system devices -- all required for a given architecture 234 235## Auxiliary system registers on sun4c and sun4m 236auxreg0 at mainbus0 # sun4c 237auxreg0 at obio0 # sun4m 238 239## Power status and control register on Sun4m systems 240power0 at obio0 241 242## Mostek clock found on 4/300, sun4c, and sun4m systems. 243## The Mostek clock NVRAM is the "eeprom" on sun4/300 systems. 244clock0 at mainbus0 # sun4c 245clock0 at obio0 # sun4m 246clock0 at obio0 addr 0xf2000000 # sun4/300 247 248## Intersil clock found on 4/100 and 4/200 systems. 249oclock0 at obio0 addr 0xf3000000 # sun4/200 250oclock0 at obio0 addr 0x03000000 # sun4/100 251 252## Memory error registers. 253memreg0 at mainbus0 # sun4c 254memreg0 at obio0 # sun4m 255memreg0 at obio0 addr 0xf4000000 # sun4/200 and sun4/300 256memreg0 at obio0 addr 0x04000000 # sun4/100 257 258## ECC memory control 259eccmemctl0 at mainbus0 # sun4m 260 261## Timer chip found on 4/300, sun4c, and sun4m systems. 262timer0 at mainbus0 # sun4c 263timer0 at obio0 # sun4m 264timer0 at obio0 addr 0xef000000 # sun4/300 265 266## EEPROM found on 4/100 and 4/200 systems. Note that the 4/300 267## doesn't use this driver; the `EEPROM' is in the NVRAM on the 268## Mostek clock chip on 4/300 systems. 269eeprom0 at obio0 addr 0xf2000000 # sun4/200 270eeprom0 at obio0 addr 0x02000000 # sun4/100 271 272 273#### Serial port configuration 274 275## Zilog 8530 serial chips. Each has two-channels. 276## zs0 is ttya and ttyb. zs1 is the keyboard and mouse. 277zs0 at mainbus0 # sun4c 278zs0 at obio0 # sun4m 279zs0 at obio0 addr 0xf1000000 level 12 flags 0x103 # sun4/200 and sun4/300 280zs0 at obio0 addr 0x01000000 level 12 flags 0x103 # sun4/100 281 282zs1 at mainbus0 # sun4c 283zs1 at obio0 # sun4m 284zs1 at obio0 addr 0xf0000000 level 12 flags 0x103 # sun4/200 and sun4/300 285zs1 at obio0 addr 0x00000000 level 12 flags 0x103 # sun4/100 286 287zs2 at obio0 addr 0xe0000000 level 12 # sun4/300 288 289zstty* at zs? 290 291# these are for wscons 292kbd0 at zstty? 293ms0 at zstty? 294wskbd* at wskbddev? 295wsmouse* at wsmousedev? 296 297## Magma Serial/Parallel driver 298#magma* at sbus? slot ? offset ? 299#mtty* at magma? 300#mbpp* at magma? 301 302## PCMCIA serial interfaces 303#com* at pcmcia? 304#pcmcom* at pcmcia? 305#com* at pcmcom? 306 307#### Disk controllers and disks 308 309# 310 311## The following flags may be set for the NCR53c94 based esp driver: 312## bits 0-7: disable disconnect/reselect for the corresponding target 313## bits 8-15: disable synchronous negotiation for target [bit-8] 314 315## sun4/300, sun4c, sun4m on-board SCSI, and FSBE/S SBus SCSI cards. 316## Both `dma' and `esp' are needed in all cases. 317## Two kinds of additional SBus SCSI interfaces are available. One uses 318## "esp at sbus" like the sun4c on-board; the other uses "esp at dma". 319 320## sun4/300 SCSI - an NCR53c94 or equivalent behind 321## an LSI Logic DMA controller 322 323dma0 at obio0 addr 0xfa001000 level 4 # sun4/300 324esp0 at obio0 addr 0xfa000000 level 4 flags 0x0000 # sun4/300 325 326dma0 at sbus0 slot ? offset ? # sun4c/sun4m 327esp0 at sbus0 slot ? offset ? flags 0x0000 # sun4c 328esp0 at dma0 flags 0x0000 # sun4m 329 330# FSBE/S SCSI 331dma* at sbus? slot ? offset ? # SBus 332esp* at sbus? slot ? offset ? flags 0x0000 # SBus (older proms) 333esp* at dma? flags 0x0000 # SBus 334 335scsibus* at esp? 336 337## Qlogic ISP SBus SCSI Card 338isp* at sbus? slot ? offset ? 339scsibus* at isp? 340 341## NCR5380-based "Sun SCSI 3" VME SCSI controller. 342## This driver has several flags which may be enabled by OR'ing 343## the values and using the "flags" directive. 344## Valid flags are: 345## 346## 0x01 Use DMA (may be polled) 347## 0x02 Use DMA completion interrupts 348## 0x04 Allow disconnect/reselect 349## 350## E.g. the following would enable DMA, interrupts, and reselect: 351## si0 at vme0 addr 0x200000 irq 3 vect 0x40 flags 0x07 352## 353## By default, DMA is enabled in the driver. 354 355si0 at vme0 addr 0x200000 irq 2 vect 0x40 356scsibus* at si? 357 358## NCR5380-based "SCSI Weird" on-board SCSI interface found 359## on sun4/100 systems. The flags are the same as the "si" 360## controller. Note, while DMA is enabled by default, only 361## polled DMA works at this time, and reselects do not work 362## on this particular controller. 363 364sw0 at obio0 addr 0x0a000000 level 3 365scsibus* at sw? 366 367## PCMCIA SCSI controllers 368#aic* at pcmcia? 369#scsibus* at aic? 370 371 372## These entries find devices on all SCSI busses and assign 373## unit numbers dynamically. 374sd* at scsibus? target ? lun ? # SCSI disks 375st* at scsibus? target ? lun ? # SCSI tapes 376cd* at scsibus? target ? lun ? # SCSI CD-ROMs 377#ch* at scsibus? target ? lun ? # SCSI changer devices 378#ss* at scsibus? target ? lun ? # SCSI scanners 379#uk* at scsibus? target ? lun ? # unknown SCSI 380 381 382## Xylogics 753 or 7053 VME SMD disk controllers and disks, found 383## on sun4 systems. 384xdc0 at vme0 addr 0xee80 irq 3 vect 0x44 385xdc1 at vme0 addr 0xee90 irq 3 vect 0x45 386xdc2 at vme0 addr 0xeea0 irq 3 vect 0x46 387xdc3 at vme0 addr 0xeeb0 irq 3 vect 0x47 388xd* at xdc? drive ? 389 390## Xylogics 451 or 451 VME SMD disk controllers and disks, found 391## on sun4 systems. 392xyc0 at vme0 addr 0xee40 irq 3 vect 0x48 393xyc1 at vme0 addr 0xee48 irq 3 vect 0x49 394xy* at xyc? drive ? 395 396 397## Floppy controller and drive found on SPARCstations. 398 399fdc0 at mainbus0 # sun4c controller 400fdc0 at obio0 # sun4m controller 401fd* at fdc0 # the drive itself 402 403## PCMCIA IDE controllers 404#wdc* at pcmcia? 405#wd* at wdc? 406 407## A disk-like interface to files. Can be used to create floppy, CD, 408## miniroot images, etc. 409 410#pseudo-device vnd 411 412## Concatenated and striped disks; with this, you can create a software-based 413## disk array similar to a "RAID 0" setup. See ccd(4). 414 415#pseudo-device ccd 4 416 417## RAIDframe disk driver: software RAID driver. See raid(4). 418 419#pseudo-device raid 4 420 421## Memory disk device, used on boot floppies with compressed 422## kernel-plus-root-disk images. 423 424#pseudo-device md 1 425 426 427#### Network interfaces 428 429## LANCE Ethernet - an AMD 7990 LANCE behind specialized DMA glue 430## Three flavors of additional SBus ethernets are available. One attaches 431## directly like the sun4c on-board, one uses the ledma device like the 432## sun4m on-board, and one uses the lebuffer device. 433 434le0 at obio0 addr 0xf9000000 level 6 # sun4/300 435le0 at sbus0 slot ? offset ? # sun4c on-board 436ledma0 at sbus0 slot ? offset ? # sun4m on-board 437le0 at ledma0 # sun4m on-board 438le* at sbus? slot ? offset ? # SBus 439ledma* at sbus? slot ? offset ? # SBus 440le* at ledma? # SBus 441lebuffer0 at sbus? slot ? offset ? # SBus 442le0 at lebuffer? # SBus 443lebuffer* at sbus? slot ? offset ? # SBus 444le* at lebuffer? # SBus 445 446 447## sun4/100 and sun4/200 Ethernet - an Intel 82586 on-board 448## or on a Multibus/VME card. 449ie0 at obio0 addr 0xf6000000 level 6 # sun4/200 on-board 450ie0 at obio0 addr 0x06000000 level 6 # sun4/100 on-board 451ie1 at vme0 addr 0xe88000 irq 3 vect 0x75 # VME 452ie2 at vme0 addr 0x31ff02 irq 3 vect 0x76 # VME 453ie3 at vme0 addr 0x35ff02 irq 3 vect 0x77 # VME 454ie4 at vme0 addr 0x2dff02 irq 3 vect 0x7c # VME 455 456## qec/be, qec/hme 457qec* at sbus? slot ? offset ? 458be* at qec? 459qe* at qec? 460 461# midway ATM 462en0 at sbus? slot ? offset ? 463 464# PCMCIA ethernet devices 465#ep* at pcmcia? 466#mbe* at pcmcia? 467#ne* at pcmcia? 468#sm* at pcmcia? 469 470# MII/PHY support 471#exphy* at mii? phy ? # 3Com internal PHYs 472#icsphy* at mii? phy ? # Integrated Circuit Systems ICS189x 473#inphy* at mii? phy ? # Intel 82555 PHYs 474#lxtphy* at mii? phy ? # Level One LXT-970 PHYs 475#nsphy* at mii? phy ? # NS83840 PHYs 476#qsphy* at mii? phy ? # Quality Semiconductor QS6612 PHYs 477#sqphy* at mii? phy ? # Seeq 80220/80221/80223 PHYs 478#tlphy* at mii? phy ? # ThunderLAN PHYs 479#ukphy* at mii? phy ? # generic unknown PHYs 480 481## Loopback network interface; required 482pseudo-device loop 483 484## SLIP and CSLIP interfaces, for IP over a serial line. 485#pseudo-device sl 486 487## PPP, the successor to SLIP. See pppd(8). 488#pseudo-device ppp 489 490## Starmode Radio IP, a special hardware network device. 491#pseudo-device strip 492 493## Network "tunnel" device, allowing protocol stacks to run in the userland. 494## This is used by the third-party user-mode "ppp" program, and others. 495#pseudo-device tun 496 497## Generic L3 over IP tunnel 498#pseudo-device gre # generic L3 over IP tunnel 499 500## Berkeley Packet Filter, required to run RARPD. A generic C-language 501## interface that allows selective examining of incoming packets. 502#pseudo-device bpfilter 503 504## IP Filter, used in firewall and NAT applications. See ipnat(8) for 505## one example of the use of the IP Filter. 506#pseudo-device ipfilter 507 508 509#### Audio and video devices 510 511## /dev/audio support (`audioamd' plus `audio') 512## 513#audioamd0 at mainbus0 # sun4c 514#audioamd0 at obio0 # sun4m 515#audioamd0 at sbus0 slot ? offset ? # sun4m 516#audio* at audioamd0 517 518#audiocs0 at sbus0 slot ? offset ? # SUNW,CS4231 519#audio* at audiocs0 520 521 522## Sun "bwtwo" black and white framebuffer, found on sun4, sun4c, and sun4m 523## systems. If your sun4 system has a cgfour installed in the P4 slot, 524## the P4 entries for "bwtwo" will attach to the overlay plane of the 525## "cgfour". 526 527bwtwo0 at sbus0 slot ? offset ? # sun4c and sun4m 528bwtwo* at sbus? slot ? offset ? # 529#bwtwo0 at obio0 addr 0xfd000000 level 4 # sun4/200 530#bwtwo0 at obio0 addr 0xfb300000 level 4 # sun4/300 in P4 slot 531#bwtwo0 at obio0 addr 0x0b300000 level 4 # sun4/100 in P4 slot 532 533## Sun "cgtwo" VME color framebuffer 534#cgtwo0 at vme0 addr 0x400000 irq ? vect 0xa8 535 536## Sun "cgthree" Sbus color framebuffer 537cgthree0 at sbus? slot ? offset ? 538cgthree* at sbus? slot ? offset ? 539 540## Sun "cgfour" color framebuffer with overlay plane. See above comment 541## regarding overlay plane. 542#cgfour0 at obio0 addr 0xfb300000 level 4 # sun4/300 P4 543#cgfour0 at obio0 addr 0x0b300000 level 4 # sun4/100 P4 544 545## Sun "cgsix" accelerated color framebuffer. 546cgsix0 at sbus? slot ? offset ? 547cgsix* at sbus? slot ? offset ? 548#cgsix0 at obio0 addr 0xfb000000 level 4 # sun4/300 P4 549#cgsix0 at obio0 addr 0x0b000000 level 4 # sun4/100 P4 550 551## Sun "cgeight" 24-bit framebuffer 552#cgeight0 at obio0 addr 0xfb300000 level 4 # sun4/300 P4 553#cgeight0 at obio0 addr 0x0b300000 level 4 # sun4/100 P4 554 555## Sun "tcx" accelerated color framebuffer. 556# there can be only one 557tcx0 at sbus? slot ? offset ? 558 559# Sun "cgfourteen" accelerated 24-bit framebuffer. 560cgfourteen* at obio0 # sun4m 561 562# P9100-based display on Tadpole SPARCbook 3. 563pnozz0 at sbus? slot ? offset ? 564 565# Sun ZX/Leo 24-bit framebuffer 566zx* at sbus? slot ? offset ? 567 568# Fujitsu AG-10e accelerated graphics 8/24-bit board 569agten* at sbus? slot ? offset ? 570 571# generic framebuffer console 572genfb* at sbus? slot ? offset ? 573 574# make sure wsdisplay0 is the console 575wsdisplay0 at wsemuldisplaydev? console 1 576wsdisplay* at wsemuldisplaydev? 577 578#### Other device configuration 579 580## Pseudo ttys, required for network logins and programs like screen. 581 582pseudo-device pty 2 # pseudo-terminals (Sysinst needs two) 583 584## Random device, used to implement /dev/random (a source of random noise), 585## and generate randomness for some kernel formulae. 586 587pseudo-device rnd 588#pseudo-device fss 4 # file system snapshot device 589 590pseudo-device wsmux # mouse and keyboard multiplexor 591pseudo-device wsfont 592