1.\" $NetBSD: hier.7,v 1.94 2011/01/20 23:01:55 mbalmer Exp $ 2.\" 3.\" Copyright (c) 1990, 1993, 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)hier.7 8.5 (Berkeley) 6/1/94 31.\" 32.Dd January 20, 2011 33.Dt HIER 7 34.Os 35.Sh NAME 36.Nm hier 37.Nd layout of filesystems 38.Sh DESCRIPTION 39An outline of the filesystem hierarchy. 40.Pp 41Naming is very important. 42The 43.Ux 44System relies on filename conventions for much of its power as a system. 45The following file system layout describes generally where things are 46and what they are, with references to other man pages for more detailed 47documentation. 48.Pp 49Not all files will be in every system. 50.Pp 51.Bl -tag -width "/altroot/" 52.It Sy \&/ 53root directory of the system 54.It Sy /COPYRIGHT 55system copyright notice, most often put on 56.Tn CD-ROM 57distributions. 58.It Sy "/[a-z]/" 59user filesystems 60.It Sy /altroot/ 61alternate root filesystem, in case of disaster 62.\" .It Sy /amd/ 63.\" home directories mount point; see 64.\" .Xr amd 8 65.It Sy /bin/ 66utilities used in both single and multi-user environments 67.It Sy /boot* 68second-stage boot loader(s) for some platforms; see 69.Xr installboot 8 70.It Sy /cdrom/ 71empty directory commonly used by 72system administrators as a temporary mount point for CD devices 73for ISO-9660 file systems 74.It Sy /dev/ 75block, character and other special device files 76.Pp 77.Bl -tag -width "MAKEDEV" -compact 78.It Sy MAKEDEV 79script for creating device files; 80see 81.Xr makedev 8 82.It Sy console 83the computer's console device 84.It Sy drum 85system swap space; see 86.Xr drum 4 87.It Sy fd/ 88file descriptor files; 89see 90.Xr fd 4 91.It Sy klog 92kernel logging device; see 93.Xr syslog 3 94.It Sy kmem 95kernel virtual memory device; see 96.Xr mem 4 97.It Sy log 98.Ux 99domain datagram log socket; see 100.Xr syslogd 8 101.It Sy mem 102kernel physical memory device; see 103.Xr mem 4 104.It Sy null 105the null device; see 106.Xr null 4 107.It Sy pts/ 108mount point for the pseudo-terminal device file system; see 109.Xr mount_ptyfs 8 110.It Sy stderr 111.It Sy stdin 112.It Sy stdout 113file descriptor files; 114see 115.Xr fd 4 116.It Sy tty 117process' controlling terminal device; see 118.Xr tty 4 119.It Sy zero 120the zero device; see 121.Xr zero 4 122.El 123.\" .It Sy /dump/ 124.\" online 125.\" .Xr dump 8 126.\" repository 127.It Sy /etc/ 128system configuration files and scripts 129.Pp 130.Bl -tag -width "master.passwd" -compact 131.It Sy amd* 132configuration files for 133.Xr amd 8 134.It Sy changelist 135files backed up by the security script 136.It Sy crontab 137schedule used by the 138.Xr cron 8 139daemon 140.It Sy csh.cshrc 141.It Sy csh.login 142.It Sy csh.logout 143system-wide scripts for 144.Xr csh 1 145.It Sy daily 146script run each day by 147.Xr cron 8 148.It Sy daily.conf 149configuration file for 150.Sy daily ; 151see 152.Xr daily.conf 5 153.It Sy defaults/ 154default configuration files read by various 155.Pa /etc/*.conf 156files 157.It Sy disktab 158disk description file, see 159.Xr disktab 5 160.It Sy dm.conf 161dungeon master configuration; see 162.Xr dm.conf 5 163.It Sy dumpdates 164dump history; see 165.Xr dump 8 166.It Sy exports 167filesystem export information; see 168.Xr mountd 8 169.It Sy fstab 170filesystem information; see 171.Xr fstab 5 172and 173.Xr mount 8 174.It Sy ftpusers 175users denied 176.Xr ftp 1 177access; see 178.Xr ftpd 8 179.It Sy ftpwelcome 180.Xr ftp 1 181initial message; see 182.Xr ftpd 8 183.It Sy gettytab 184terminal configuration database; see 185.Xr gettytab 5 186.It Sy group 187group permissions file; see 188.Xr group 5 189.It Sy hosts 190host name database backup for 191.Xr named 8 ; 192see 193.Xr hosts 5 194.It Sy hosts.equiv 195trusted machines with equivalent user ID's 196.It Sy hosts.lpd 197trusted machines with printing privileges 198.It Sy inetd.conf 199Internet server configuration file; see 200.Xr inetd 8 201.It Sy kerberosV/ 202configuration files for the kerberos version V; 203see 204.Xr kerberos 8 205.It Sy localtime 206local timezone information; 207see 208.Xr ctime 3 209.It Sy mail/ 210configuration files for 211.Xr sendmail 8 212.Pp 213.Bl -tag -width "sendmail.*" -compact 214.It Sy aliases* 215name alias files 216.It Sy sendmail.* 217.Xr sendmail 8 218configuration information 219.El 220.It Sy mail.rc 221system-wide initialization script for 222.Xr mail 1 223.It Sy man.conf 224configuration file for 225.Xr man 1 ; 226see 227.Xr man.conf 5 228.It Sy master.passwd 229Main password file, readable only by root; see 230.Xr passwd 5 231.It Sy mk.conf 232optional file containing 233.Xr make 1 234variables, read by pkgsrc and the system sources. 235.It Sy monthly 236script run each month by 237.Xr cron 8 238.It Sy monthly.conf 239configuration file for 240.Sy monthly ; 241see 242.Xr monthly.conf 5 243.It Sy motd 244system message of the day 245.It Sy mtree/ 246mtree configuration files; 247see 248.Xr mtree 8 249.It Sy named.* 250.It Sy namedb/ 251named configuration files and databases; 252see 253.Xr named 8 254.It Sy netgroup 255network groups; see 256.Xr netgroup 5 257.It Sy netstart 258network startup script 259.It Sy networks 260network name data base; see 261.Xr networks 5 262.It Sy passwd 263World readable password file generated from master.passwd; see 264.Xr passwd 5 , 265.Xr pwd_mkdb 8 266.It Sy phones 267remote host phone number data base; see 268.Xr phones 5 269.It Sy printcap 270system printer configuration; see 271.Xr printcap 5 272.It Sy protocols 273protocol name database; see 274.Xr protocols 5 275.It Sy pwd.db 276database form of passwd file; see 277.Xr pwd_mkdb 8 278.It Sy rc 279master system startup script invoked by 280.Xr init 8 ; 281see 282.Xr rc 8 283.It Sy rc.conf 284configuration file for system startup and shutdown scripts; see 285.Xr rc.conf 5 286.It Sy rc.d/ 287directory containing per-subsystem startup and shutdown scripts; see 288.Xr rc 8 289.It Sy rc.local 290locally editable system startup script 291.It Sy rc.shutdown 292master system shutdown script invoked by 293.Xr shutdown 8 ; 294see 295.Xr rc 8 296.It Sy remote 297remote host description file; see 298.Xr remote 5 299.It Sy security 300daily (in)security script run by 301.Xr cron 8 302.It Sy security.conf 303configuration file for 304.Sy security ; 305see 306.Xr security.conf 5 307.It Sy services 308service name data base; see 309.Xr services 5 310.It Sy shells 311list of permitted shells; see 312.Xr shells 5 313.It Sy sliphome/ 314.Tn SLIP 315login/logout scripts; see 316.Xr sliplogin 8 317.It Sy spwd.db 318database form of master.passwd file; see 319.Xr pwd_mkdb 8 320.It Sy syslog.conf 321.Xr syslogd 8 322configuration file; see 323.Xr syslog.conf 5 324.It Sy termcap 325terminal type database; see 326.Xr termcap 3 327.It Sy ttys 328terminal initialization information; see 329.Xr ttys 5 330.It Sy uucp/ 331UUCP configuration files; see 332.Xr uucp 1 333and 334.Xr uucico 8 . 335.It Sy weekly 336script run each week by 337.Xr cron 8 338.It Sy weekly.conf 339configuration file for 340.Sy weekly ; 341see 342.Xr weekly.conf 5 343.El 344.It Sy /home/ 345mount point for the automounter; see 346.Xr amd 8 347.It Sy /kern/ 348mount point for the kern file system; see 349.Xr mount_kernfs 8 350.It Sy /lib/ 351dynamic linked libraries used by dynamic linked programs 352(such as those in 353.Pa /bin/ 354and 355.Pa /sbin/ ) 356that cannot rely upon 357.Pa /usr/lib/ 358being available. 359.It Sy /libexec/ 360system utilities (such as the dynamic linker) required by programs 361and libraries that cannot rely upon 362.Pa /usr/libexec/ 363being available. 364.It Sy /mnt/ 365empty directory commonly used by 366system administrators as a temporary mount point 367.It Sy /netbsd 368pure kernel executable (the operating system loaded into memory 369at boot time). 370.It Sy /proc/ 371mount point for the process file system; see 372.Xr mount_procfs 8 373.It Sy /rescue/ 374statically linked rescue tools, for use in system recovery 375.It Sy /root/ 376home directory for the super-user 377.Pp 378.Bl -tag -width ".profile" -compact 379.It Sy \&.cshrc 380super-user start-up file 381.It Sy \&.login 382super-user start-up file 383.It Sy \&.profile 384super-user start-up file 385.It Sy \&.rhosts 386super-user id mapping between machines 387.El 388.It Sy /sbin/ 389system programs and administration utilities 390used in both single-user and multi-user environments 391.It Sy /stand/ 392programs used in a standalone environment 393.It Sy /tmp/ 394temporary files, usually a 395.Xr mfs 8 396memory-based filesystem (the contents of 397.Pa /tmp 398are usually 399.Em not 400preserved across a system reboot) 401.It Sy /usr/ 402contains the majority of the system utilities and files 403.Pp 404.Bl -tag -width "libdata/" -compact 405.It Sy X11R6/ 406X11 files 407.It Sy X11R7/ 408X11 files 409.Pp 410.Bl -tag -width "include/" -compact 411.It Sy bin/ 412X11 binaries 413.It Sy include/ 414X11 include files 415.It Sy lib/ 416X11 libraries 417.El 418.Pp 419.It Sy bin/ 420common utilities, programming tools, and applications 421.It Sy games/ 422the important stuff 423.It Sy include/ 424standard C include files 425.Pp 426.Bl -tag -width "protocols/" -compact 427.It Sy arpa/ 428include files for Internet service protocols 429.It Sy atf/ 430include files for the Automated Testing Framework; see 431.Xr atf 7 432.It Sy g++/ 433include files for the C++ compiler 434.It Sy machine/ 435machine specific include files 436.It Sy net/ 437.It Sy netatalk/ 438C include files for AppleTalk protocols 439miscellaneous network include files; 440see 441.Xr atalk 4 442.It Sy netinet/ 443include files for Internet standard protocols; see 444.Xr inet 4 445.It Sy netinet6/ 446include files for Internet protocol version 6; see 447.Xr inet6 4 448.It Sy netiso/ 449include files for ISO standard protocols; see 450.Xr iso 4 451.It Sy netkey/ 452include files for secret key management, used for security protocols; see 453.Xr ipsec 4 454.It Sy netnatm/ 455C include files for native mode ATM 456.It Sy nfs/ 457C include files for NFS (Network File System) 458.It Sy protocols/ 459C include files for Berkeley service protocols 460.It Sy sys/ 461system C include files (kernel data structures) 462.It Sy ufs/ 463C include files for UFS (The U-word File System) 464.El 465.Pp 466.It Sy lib/ 467archive, profiled, position independent archive, and shared libraries 468.Pp 469.Bl -tag -width "lua/" -compact 470.It Sy lua/ 471.Bl -tag -width "5.1/" -compact 472.It Sy 5.1/ 473Lua 5.1 modules 474.El 475.El 476.Pp 477.It Sy libdata/ 478miscellaneous utility data files 479.It Sy libexec/ 480system daemons \*[Am] system utilities (executed by other programs) 481.Pp 482.Bl -tag -width "uucp/" -compact 483.It Sy uucp/ 484UUCP binaries and scripts (historically placed; to be moved) 485.El 486.Pp 487.It Sy mdec/ 488boot blocks, etc. 489.It Sy obj/ 490architecture-specific target tree produced by building the 491.Pa /usr/src 492tree; normally a symbolic link or mounted filesystem 493.It Sy pkg/ 494packages maintained by groups other than the 495.Nx 496Project. 497.Pp 498.Bl -tag -width "include/" -compact 499.It Sy bin/ 500contributed binaries 501.It Sy include/ 502contributed include files 503.It Sy lib/ 504contributed libraries 505.It Sy libdata/ 506contributed data files 507.It Sy libexec/ 508contributed daemons 509.It Sy sbin/ 510contributed system utilities 511.El 512.Pp 513.It Sy pkgsrc/ 514build descriptions ("packages") for the 515.Nx 516packages system. 517.Pp 518.Bl -tag -width "distfilesX" -compact 519.It Sy distfiles/ 520Where unchanged source archives are fetched to/stored 521.It Sy packages/ 522Where compiled binary packages are stored 523.El 524.Pp 525There are also several other subdirectories which contain packages of 526a certain category, e.g., archivers, graphics, ... 527.Pp 528.It Sy sbin/ 529system daemons and system utilities (normally executed by the super-user) 530.It Sy share/ 531architecture-independent text files 532.Pp 533.Bl -tag -width "calendar/" -compact 534.It Sy calendar/ 535a variety of calendar files; see 536.Xr calendar 1 537.It Sy dict/ 538word lists; 539see 540.Xr look 1 541and 542.Xr spell 1 543.Pp 544.Bl -tag -width "special/" -compact 545.It Sy words 546common words 547.It Sy web2 548words of Webster's 2nd International 549.It Sy papers/ 550reference databases; 551see 552.Xr refer 1 553.It Sy special/ 554custom word lists; 555see 556.Xr spell 1 557.El 558.Pp 559.It Sy doc/ 560miscellaneous documentation; source for most of the printed 561.Bx 4.3 562manuals (available 563from the 564.Tn USENIX 565association) 566.It Sy games/ 567text files used by various games 568.It Sy i18n/ 569internationalization databases; see 570.Xr iconv 3 571.It Sy locale/ 572locale databases and gettext message catalogs; see 573.Xr setlocale 3 574and 575.Xr gettext 3 576.It Sy man/ 577formatted manual pages 578.It Sy me/ 579macros for use with the 580.Xr me 7 581macro package 582.It Sy misc/ 583miscellaneous system-wide text files 584.Pp 585.Bl -tag -width "termcap" -compact 586.It Sy termcap 587terminal characteristics database; 588see 589.Xr termcap 5 590.El 591.Pp 592.It Sy mk/ 593include files for 594.Xr make 1 595.It Sy ms/ 596macros for use with the 597.Xr ms 7 598macro package 599.It Sy nls/ 600message catalogs; see 601.Xr catgets 3 602.It Sy skel/ 603sample initialization files for new user accounts 604.It Sy tabset/ 605tab description files for a variety of terminals, used in 606the termcap file; 607see 608.Xr termcap 5 609.It Sy tmac/ 610text processing macros; 611see 612.Xr nroff 1 613and 614.Xr troff 1 615.It Sy zoneinfo/ 616timezone configuration information; 617see 618.Xr tzfile 5 619.El 620.It Sy tests/ 621test programs; see 622.Xr atf-run 1 623for information on how to run them 624.El 625.Pp 626.It Sy /usr/src/ 627.Nx 628and local source files 629.Pp 630.Bl -tag -width "domestic/" -compact 631.It Sy bin/ 632source for utilities/files in 633.Pa /bin 634.It Sy common/ 635sources shared between kernel and userland 636.It Sy crypto/ 637cryptographic source, which may have import or export restrictions 638.It Sy dist/ 639third-party 640.Sq virgin 641source code, referenced by other parts of the source tree (deprecated, use 642.Sy external/ 643instead) 644.It Sy distrib/ 645tools and data-files for making distributions 646.It Sy doc/ 647documentation about the source tree (i.e., about the tree, not about 648how to use the built software.) 649.It Sy etc/ 650source (usually example files) for files in 651.Pa /etc 652.It Sy external/ 653source for programs from external third parties 654(where 655.Nx 656is the not the primary maintainer), 657grouped by license, and then products per license 658.Pp 659.Bl -tag -width "intel-fw-public/" -compact 660.It Sy apache2/ 661Apache 2.0 license. 662.It Sy bsd/ 663BSD (or equivalent) licensed software, 664possibly with the 665.Dq advertising clause . 666.It Sy cddl/ 667Common Development and Distribution License (the Sun license which is 668based on the Mozilla Public License version 1.1). 669.It Sy gpl2/ 670GNU Public License, version 2 (or earlier). 671.It Sy gpl3/ 672GNU Public License, version 3. 673.It Sy historical/ 674Lucent's old license. 675.It Sy ibm-public/ 676IBM's public license. 677.It Sy intel-fw-eula/ 678Intel firmware license with redistribution restricted to OEM. 679.It Sy intel-fw-public/ 680Intel firmware license permitting redistribution with 681terms similar to BSD licensed software. 682.It Sy intel-public/ 683Intel license permitting redistribution with terms similar to 684BSD licensed software. 685.It Sy mit/ 686MIT (X11) style license. 687.It Sy zlib/ 688BSD-like zlib license. 689.El 690.Pp 691.It Sy games/ 692source for utilities/files in 693.Pa /usr/games 694.It Sy gnu/ 695source for programs covered by the 696.Tn GNU 697license (or similar) (deprecated; use 698.Sy external/gpl2/ 699or 700.Sy external/gpl3/ 701as appropriate) 702.It Sy include/ 703source for files in 704.Pa /usr/include 705.It Sy lib/ 706source for libraries in 707.Pa /usr/lib 708.It Sy libexec/ 709source for utilities/files in 710.Pa /usr/libexec 711.It Sy regress/ 712various regression tests 713.It Sy rescue/ 714source/makefiles for /rescue 715.It Sy sbin/ 716source for utilities/files in 717.Pa /sbin 718.It Sy share/ 719source for files in 720.Pa /usr/share 721.Pp 722.Bl -tag -width "doc/" -compact 723.It Sy doc/ 724.Pp 725.Bl -tag -width "papers/" -compact 726.It Sy papers/ 727source for various Berkeley technical papers 728.It Sy psd/ 729source for Programmer's Supplementary Documents 730.It Sy smm/ 731source for System Manager's Manual 732.It Sy usd/ 733source for User's Supplementary Documents 734.Pp 735.El 736.El 737.It Sy sys/ 738kernel source files 739.Pp 740.Bl -tag -width "gdbscripts/" -compact 741.It Sy arch/ 742architecture-specific support 743.Pp 744.Bl -tag -width "ews4800mips/" -compact 745.It Sy acorn26/ 746Acorn Archimedes, A-series and R-series systems 747.It Sy acorn32/ 748Acorn RiscPC/A7000 and VLSI RC7500 749.It Sy algor/ 750Algorithmics Ltd. MIPS evaluations boards 751.It Sy alpha/ 752Digital/Compaq Alpha 753.It Sy amd64/ 754Computers with x86_64 capable CPUs 755.It Sy amiga/ 756Commodore Amiga and MacroSystem DraCo 757.It Sy amigappc/ 758PowerPC based Amiga boards 759.It Sy arc/ 760MIPS-based machines following the Advanced RISC Computing spec 761.It Sy arm/ 762ARM processor general support 763.It Sy atari/ 764Atari TT030, Falcon and Hades 765.It Sy bebox/ 766Be Inc. BeBox 767.It Sy cats/ 768Chalice Technology's CATS and Intel's EBSA-285 evaluation boards 769.It Sy cesfic/ 770CES FIC8234 VME processor board 771.It Sy cobalt/ 772Cobalt Networks' MIPS-based Microserver 773.It Sy dreamcast/ 774Sega Dreamcast game console 775.It Sy evbarm/ 776ARM based evaluation boards 777.It Sy evbmips/ 778MIPS based evaluation boards 779.It Sy evbppc/ 780PowerPC based evaluation boards and appliances 781.It Sy evbsh3/ 782SH3/SH4 based evaluation boards 783.It Sy ews4800mips/ 784NEC's MIPS based EWS4800 workstations 785.It Sy hp300/ 786Hewlett-Packard 9000/300 and 400 680x0-based workstations 787.It Sy hp700/ 788Hewlett-Packard 9000/700 HPPA based workstations 789.It Sy hpcarm/ 790StrongARM based WinCE PDA machines 791.It Sy hpcmips/ 792MIPS based WinCE PDA machines 793.It Sy hpcsh/ 794Hitachi SH3/4 based WinCE PDA machines 795.It Sy hppa/ 796HPPA processor general support 797.It Sy i386/ 79880x86-based IBM PCs and clones 799.It Sy ibmnws/ 800IBM Network Station 1000 801.It Sy iyonix/ 802Castle Technology's Iyonix ARM based PCs 803.It Sy luna68k/ 804Omron Tateishi Electric's 680x0-based LUNA workstations 805.It Sy m68k/ 806680x0 processor general support 807.It Sy mac68k/ 808Apple Macintosh with 68k CPU 809.It Sy macppc/ 810Apple Power Macintosh and clones 811.It Sy mips/ 812MIPS processor general support 813.It Sy mipsco/ 814MIPS Computer Systems Inc. family of workstations and servers 815.It Sy mmeye/ 816Brains Inc. SH3 based mmEye multimedia server 817.It Sy mvme68k/ 818Motorola MVME 680x0-based SBCs 819.It Sy mvmeppc/ 820Motorola PowerPC VME SBCs 821.It Sy netwinder/ 822StrongARM based NetWinder machines 823.It Sy news68k/ 824Sony's 680x0-based NEWS workstations 825.It Sy newsmips/ 826Sony's MIPS-based NEWS workstations 827.It Sy next68k/ 828NeXT 68k "black" hardware 829.It Sy ofppc/ 830Open Firmware PowerPC workstations 831.It Sy pmax/ 832Digital MIPS-based DECstations and DECsystems 833.It Sy powerpc/ 834PowerPC processor support 835.It Sy prep/ 836PReP (PowerPC Reference Platform) and CHRP machines 837.It Sy sandpoint/ 838Motorola Sandpoint reference platform 839.It Sy sbmips/ 840Broadcom/SiByte evaluation boards 841.It Sy sgimips/ 842Silicon Graphics' MIPS-based workstations 843.It Sy sh3/ 844SH3/SH4 processor general support 845.It Sy shark/ 846Digital DNARD ("Shark") 847.It Sy sparc/ 848Sun Microsystems SPARC (32-bit) and UltraSPARC (in 32-bit mode) 849.It Sy sparc64/ 850Sun Microsystems UltraSPARC (in native 64-bit mode) 851.It Sy sun2/ 852Sun Microsystems 68010-based Sun 2 architecture 853.It Sy sun3/ 854Sun Microsystems 68020/68030-based Sun 3/3x architecture 855.It Sy sun68k/ 856680x0-based Sun architecture general support 857.It Sy vax/ 858Digital VAX 859.It Sy x68k/ 860Sharp X680x0 680x0-based workstations 861.It Sy x86/ 862General support for PC/AT compatibles with ia32 or x86_64 CPUs 863.It Sy xen/ 864The Xen virtual machine monitor 865.It Sy zaurus/ 866Sharp C3x00 Arm based PDA 867.El 868.Pp 869.It Sy compat/ 870kernel compatibility modules directory 871.Pp 872.Bl -tag -width "ossaudio/" -compact 873.It Sy common/ 874common compatibility routines, old 875.Bx 4 876and 877.Nx 878routines. 879.It Sy freebsd/ 880support for 881.Fx 882binaries; see 883.Xr compat_freebsd 8 884.It Sy hpux/ 885support for 68000 HP-UX binaries 886.It Sy ibcs2/ 887support for Intel Binary binaries 888.It Sy linux/ 889support for Linux binaries; see 890.Xr compat_linux 8 891.It Sy m68k4k/ 892support for 4KB page 68000 binaries 893.It Sy netbsd32/ 894support for 895.Nx 89632-bit binaries on 64 bit platforms with compatible CPU families 897.It Sy osf1/ 898support for 899.Tn Digital 900.Ux 901.Po 902formerly 903.Tn OSF/1 904.Pc 905binaries 906.It Sy ossaudio/ 907support for OSS audio 908.It Sy pecoff/ 909support for 910.Tn Win32 911binaries; see 912.Xr compat_pecoff 8 913.It Sy sunos/ 914support for 915.Tn SunOS 4.x 916binaries; see 917.Xr compat_sunos 8 918.It Sy svr4/ 919support for System V Release 4 binaries; see 920.Xr compat_svr4 8 921.It Sy ultrix/ 922support for 923.Tn ULTRIX 924binaries 925.It Sy vax1k/ 926support for older VAX binaries that started on a 1 KB boundary 927.El 928.Pp 929.It Sy conf/ 930architecture independent configuration directory 931.It Sy crypto/ 932cryptographic kernel source, which may have import or export restrictions 933.It Sy ddb/ 934in kernel debugger 935.It Sy dev/ 936architecture independent device support 937.It Sy fs/ 938miscellaneous file systems 939.Bl -tag -width "filecorefs/" -compact 940.It Sy adosfs/ 941AmigaDOS file-system support; see 942.Xr mount_ados 8 943.It Sy cd9660/ 944support for the ISO-9660 filesystem; see 945.Xr mount_cd9660 8 946.It Sy filecorefs/ 947support for the Acorn RISC OS filecore filesystem; see 948.Xr mount_filecore 8 949.It Sy msdosfs/ 950.Tn MS-DOS 951file system; see 952.Xr mount_msdos 8 953.It Sy ntfs/ 954NTFS filesystem support; see 955.Xr mount_ntfs 8 956.It Sy ptyfs/ 957pseudo-terminal device filesystem; see 958.Xr mount_ptyfs 8 959.It Sy smbfs/ 960SMB/CIFS filesystem support; see 961.Xr mount_smbfs 8 962.It Sy union/ 963union file system; see 964.Xr mount_union 8 965.El 966.It Sy gdbscripts/ 967support for accessing kernel structures from within the debugger 968.Xr gdb 1 . 969.It Sy ipkdb/ 970support for kernel debugging over the network 971.Pp 972.It Sy kern/ 973support for the high kernel (system calls) 974.It Sy lib/ 975kernel libraries 976.Pp 977.Bl -tag -width "libkern/" -compact 978.It Sy libkern/ 979C library routines used in the kernel 980.It Sy libsa/ 981machine independent stand alone kernel library 982.It Sy libz/ 983compression library 984.El 985.Pp 986.It Sy miscfs/ 987miscellaneous file systems 988.Pp 989.Bl -tag -width "deadfs/" -compact 990.It Sy deadfs/ 991kernel only dead file system 992.It Sy fdesc/ 993file descriptor file system; see 994.Xr mount_fdesc 8 995.It Sy fifofs/ 996POSIX FIFO support 997.It Sy genfs/ 998kernel only generic file system 999.It Sy kernfs/ 1000kernel namespace file system; see 1001.Xr mount_kernfs 8 1002.It Sy nullfs/ 1003loop back file system; see 1004.Xr mount_null 8 1005.It Sy overlay/ 1006overlay file system; see 1007.Xr mount_overlay 8 1008.It Sy procfs/ 1009process file system; see 1010.Xr mount_procfs 8 1011.It Sy specfs/ 1012kernel only special file system 1013.It Sy syncfs/ 1014kernel trickle sync algorithm 1015.It Sy umapfs/ 1016user and group re-mapping file system; see 1017.Xr mount_umap 8 1018.El 1019.Pp 1020.It Sy net/ 1021miscellaneous networking support 1022.It Sy netatalk/ 1023AppleTalk networking support 1024.It Sy netinet/ 1025IP networking support 1026.It Sy netinet6/ 1027IPv6 networking support 1028.It Sy netiso/ 1029ISO networking support 1030.It Sy netkey/ 1031Key database for IPsec networking support 1032.It Sy netnatm/ 1033ATM networking support 1034.It Sy nfs/ 1035NFS support 1036.It Sy stand/ 1037kernel standalone support 1038.It Sy sys/ 1039kernel (and system) include files 1040.It Sy ufs/ 1041local filesystem support 1042.Pp 1043.Bl -tag -width "ffs/" -compact 1044.It Sy ffs/ 1045the Berkeley Fast File System 1046.It Sy lfs/ 1047the log-structured file system 1048.It Sy mfs/ 1049the in-memory file system 1050.It Sy ufs/ 1051shared 1052.Ux 1053file system support 1054.El 1055.It Sy uvm/ 1056UVM virtual memory system 1057.El 1058.It Sy tests/ 1059source for test programs in 1060.Pa /usr/tests 1061.It Sy usr.bin/ 1062source for utilities/files in 1063.Pa /usr/bin 1064.It Sy usr.sbin/ 1065source for utilities/files in 1066.Pa /usr/sbin 1067.El 1068.It Sy /var/ 1069multi-purpose log, temporary, transient, and spool files 1070.Pp 1071.Bl -tag -width "preserve/" -compact 1072.It Sy account/ 1073system accounting files 1074.Pp 1075.Bl -tag -width "acct" -compact 1076.It Sy acct 1077execution accounting file; 1078see 1079.Xr acct 5 1080.El 1081.Pp 1082.It Sy at/ 1083timed command scheduling files; 1084see 1085.Xr at 1 1086.It Sy backups/ 1087miscellaneous backup files, largely of files found in 1088.Pa /etc 1089.It Sy chroot/ 1090home directories of applications which are run in a 1091.Xr chroot 8 1092.Dq cage . 1093.It Sy crash/ 1094system crash dumps; see 1095.Xr savecore 8 1096.It Sy cron/ 1097scheduled commands configuration files; see 1098.Xr cron 8 1099.It Sy db/ 1100miscellaneous automatically generated system-specific database files, 1101and persistent files used in the maintenance of third party software. 1102.Pp 1103.Bl -tag -width "monthly.out" -compact 1104.It Sy pkg 1105default location for metadata related to third party software 1106packages. 1107See 1108.Xr pkg_add 1 1109for more details of the 1110.Nx 1111Packages Collection, or pkgsrc. 1112.El 1113.Pp 1114.It Sy games/ 1115miscellaneous game status and log files 1116.It Sy heimdal/ 1117Kerberos 5 KDC database; see 1118.Xr kdc 8 1119.It Sy log/ 1120miscellaneous system log files 1121.Pp 1122.Bl -tag -width "monthly.out" -compact 1123.It Sy amd.* 1124.Xr amd 8 1125logs 1126.It Sy daily.out 1127output of the last run of the 1128.Pa /etc/daily 1129script 1130.It Sy ftp.* 1131.Xr ftp 1 1132logs 1133.It Sy kerberos.* 1134.Xr kerberos 8 1135logs 1136.It Sy lastlog 1137system last time logged in log; see 1138.Xr utmp 5 1139.It Sy lpd-errs.* 1140printer daemon error logs; see 1141.Xr lpd 8 1142.It Sy maillog.* 1143.Xr sendmail 8 1144log files 1145.It Sy messages.* 1146general system information log 1147.It Sy monthly.out 1148output of the last run of the 1149.Pa /etc/monthly 1150script 1151.It Sy secure 1152sensitive security information log 1153.It Sy sendmail.st 1154.Xr sendmail 8 1155statistics 1156.It Sy timed.* 1157.Xr timed 8 1158logs 1159.It Sy weekly.out 1160output of the last run of the 1161.Pa /etc/weekly 1162script 1163.It Sy wtmp 1164login/logout log; 1165see 1166.Xr utmp 5 1167.El 1168.Pp 1169.It Sy mail/ 1170user system mailboxes 1171.It Sy msgs/ 1172system messages; see 1173.Xr msgs 1 1174.\" since we use nvi (now called vi) this isn't the place any more, is it? 1175.It Sy preserve/ 1176temporary home of files preserved after an accidental death of 1177.Xr ex 1 1178or 1179.Xr vi 1 1180.It Sy quotas/ 1181filesystem quota information 1182.It Sy run/ 1183system information files, rebuilt after each reboot 1184.Pp 1185.Bl -tag -width "utmp" -compact 1186.It Sy utmp 1187database of current users; see 1188.Xr utmp 5 1189.El 1190.Pp 1191.It Sy rwho/ 1192rwho data files; see 1193.Xr rwhod 8 , 1194.Xr rwho 1 , 1195and 1196.Xr ruptime 1 1197.It Sy spool/ 1198miscellaneous printer and mail system spooling directories 1199.Pp 1200.Bl -tag -width "uucppublic/" -compact 1201.It Sy ftp/ 1202commonly 1203.Dq ~ftp , 1204the anonymous ftp root directory; see 1205.Xr ftpd 8 1206.It Sy mqueue/ 1207sendmail mail queue; 1208see 1209.Xr sendmail 8 1210.It Sy news/ 1211Network news archival and spooling directories 1212.It Sy output/ 1213printer spooling directories 1214.It Sy postfix/ 1215postfix mail queue; 1216see 1217.Xr postfix 1 1218.It Sy uucp/ 1219uucp spool directory 1220.It Sy uucppublic/ 1221commonly 1222.Dq ~uucp , 1223the uucp public temporary directory; see 1224.Xr uucp 1 1225.El 1226.Pp 1227.It Sy tmp/ 1228temporary files that are not discarded between system reboots 1229.Pp 1230.Bl -tag -width "vi.recover/" -compact 1231.It Sy vi.recover/ 1232recovery directory for new 1233.Xr vi 1 1234.El 1235.Pp 1236.It Sy yp/ 1237Databases and configuration for the NIS (YP) system; see 1238.Xr nis 8 . 1239.El 1240.El 1241.Sh SEE ALSO 1242.Xr apropos 1 , 1243.Xr ls 1 , 1244.Xr whatis 1 , 1245.Xr whereis 1 , 1246.Xr which 1 1247.Sh HISTORY 1248A 1249.Nm 1250manual page appeared in 1251.At v7 . 1252