1.\" $NetBSD: hier.7,v 1.107 2013/12/24 01:42:32 wiz 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 December 23, 2013 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 1 212.Pp 213.Bl -tag -width "sendmail.*" -compact 214.It Sy aliases* 215name alias files 216.It Sy sendmail.* 217.Xr sendmail 1 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 ttys 325terminal initialization information; see 326.Xr ttys 5 327.It Sy weekly 328script run each week by 329.Xr cron 8 330.It Sy weekly.conf 331configuration file for 332.Sy weekly ; 333see 334.Xr weekly.conf 5 335.El 336.It Sy /home/ 337mount point for the automounter; see 338.Xr amd 8 339.It Sy /kern/ 340mount point for the kern file system; see 341.Xr mount_kernfs 8 342.It Sy /lib/ 343dynamic linked libraries used by dynamic linked programs 344(such as those in 345.Pa /bin/ 346and 347.Pa /sbin/ ) 348that cannot rely upon 349.Pa /usr/lib/ 350being available. 351.It Sy /libdata/ 352non-executable files 353.Pq such as device firmware 354required at boot time, when 355.Pa /usr/libdata 356may not be available. 357.It Sy /libexec/ 358system utilities (such as the dynamic linker) required by programs 359and libraries that cannot rely upon 360.Pa /usr/libexec/ 361being available. 362.It Sy /mnt/ 363empty directory commonly used by 364system administrators as a temporary mount point 365.It Sy /netbsd 366pure kernel executable (the operating system loaded into memory 367at boot time). 368.It Sy /proc/ 369mount point for the process file system; see 370.Xr mount_procfs 8 371.It Sy /rescue/ 372statically linked rescue tools, for use in system recovery 373.It Sy /root/ 374home directory for the super-user 375.Pp 376.Bl -tag -width ".profile" -compact 377.It Sy \&.cshrc 378super-user start-up file 379.It Sy \&.login 380super-user start-up file 381.It Sy \&.profile 382super-user start-up file 383.It Sy \&.rhosts 384super-user id mapping between machines 385.El 386.It Sy /sbin/ 387system programs and administration utilities 388used in both single-user and multi-user environments 389.It Sy /stand/ 390programs used in a standalone environment 391.It Sy /tmp/ 392temporary files, usually a 393.Xr mfs 8 394memory-based filesystem (the contents of 395.Pa /tmp 396are usually 397.Em not 398preserved across a system reboot) 399.It Sy /usr/ 400contains the majority of the system utilities and files 401.Pp 402.Bl -tag -width "libdata/" -compact 403.It Sy X11R6/ 404X11 files 405.It Sy X11R7/ 406X11 files 407.Pp 408.Bl -tag -width "include/" -compact 409.It Sy bin/ 410X11 binaries 411.It Sy include/ 412X11 include files 413.It Sy lib/ 414X11 libraries 415.El 416.Pp 417.It Sy bin/ 418common utilities, programming tools, and applications 419.It Sy games/ 420the important stuff 421.It Sy include/ 422standard C include files 423.Pp 424.Bl -tag -width "protocols/" -compact 425.It Sy arpa/ 426include files for Internet service protocols 427.It Sy atf/ 428include files for the Automated Testing Framework; see 429.Xr atf 7 430.It Sy g++/ 431include files for the C++ compiler 432.It Sy machine/ 433machine specific include files 434.It Sy net/ 435.It Sy netatalk/ 436C include files for AppleTalk protocols 437miscellaneous network include files; 438see 439.Xr atalk 4 440.It Sy netinet/ 441include files for Internet standard protocols; see 442.Xr inet 4 443.It Sy netinet6/ 444include files for Internet protocol version 6; see 445.Xr inet6 4 446.It Sy netkey/ 447include files for secret key management, used for security protocols; see 448.Xr ipsec 4 449.It Sy netnatm/ 450C include files for native mode ATM 451.It Sy nfs/ 452C include files for NFS (Network File System) 453.It Sy protocols/ 454C include files for Berkeley service protocols 455.It Sy sys/ 456system C include files (kernel data structures) 457.It Sy ufs/ 458C include files for UFS (The U-word File System) 459.El 460.Pp 461.It Sy lib/ 462archive, profiled, position independent archive, and shared libraries 463.Pp 464.Bl -tag -width "lua/" -compact 465.It Sy lua/ 466.Bl -tag -width "5.1/" -compact 467.It Sy 5.1/ 468Lua 5.1 modules 469.El 470.El 471.Pp 472.It Sy libdata/ 473miscellaneous utility data files 474.It Sy libexec/ 475system daemons \*[Am] system utilities (executed by other programs) 476.Pp 477.It Sy mdec/ 478boot blocks, etc. 479.It Sy obj/ 480architecture-specific target tree produced by building the 481.Pa /usr/src 482tree; normally a symbolic link or mounted filesystem 483.It Sy pkg/ 484packages maintained by groups other than the 485.Nx 486Project. 487.Pp 488.Bl -tag -width "include/" -compact 489.It Sy bin/ 490contributed binaries 491.It Sy include/ 492contributed include files 493.It Sy lib/ 494contributed libraries 495.It Sy libdata/ 496contributed data files 497.It Sy libexec/ 498contributed daemons 499.It Sy sbin/ 500contributed system utilities 501.El 502.Pp 503.It Sy pkgsrc/ 504build descriptions ("packages") for the 505.Nx 506packages system. 507.Pp 508.Bl -tag -width "distfilesX" -compact 509.It Sy distfiles/ 510Where unchanged source archives are fetched to/stored 511.It Sy packages/ 512Where compiled binary packages are stored 513.El 514.Pp 515There are also several other subdirectories which contain packages of 516a certain category, e.g., archivers, graphics, ... 517.Pp 518.It Sy sbin/ 519system daemons and system utilities (normally executed by the super-user) 520.It Sy share/ 521architecture-independent text files 522.Pp 523.Bl -tag -width "calendar/" -compact 524.It Sy calendar/ 525a variety of calendar files; see 526.Xr calendar 1 527.It Sy dict/ 528word lists; 529see 530.Xr look 1 531and 532.Xr spell 1 533.Pp 534.Bl -tag -width "special/" -compact 535.It Sy words 536common words 537.It Sy web2 538words of Webster's 2nd International 539.It Sy papers/ 540reference databases; 541see 542.Xr refer 1 543.It Sy special/ 544custom word lists; 545see 546.Xr spell 1 547.El 548.Pp 549.It Sy doc/ 550miscellaneous documentation; source for most of the printed 551.Bx 4.3 552manuals (available 553from the 554.Tn USENIX 555association) 556.It Sy games/ 557text files used by various games 558.It Sy i18n/ 559internationalization databases; see 560.Xr iconv 3 561.It Sy locale/ 562locale databases and gettext message catalogs; see 563.Xr setlocale 3 564and 565.Xr gettext 3 566.It Sy man/ 567formatted manual pages 568.It Sy me/ 569macros for use with the 570.Xr me 7 571macro package 572.It Sy misc/ 573miscellaneous system-wide text files 574.Pp 575.Bl -tag -width "terminfo.cdb" -compact 576.It Sy terminfo 577terminal characteristics database; 578see 579.Xr terminfo 5 580.It Sy terminfo.cdb 581database form of terminfo file; see 582.Xr tic 1 583.El 584.Pp 585.It Sy mk/ 586include files for 587.Xr make 1 588.It Sy ms/ 589macros for use with the 590.Xr ms 7 591macro package 592.It Sy nls/ 593message catalogs; see 594.Xr catgets 3 595.It Sy skel/ 596sample initialization files for new user accounts 597.It Sy tmac/ 598text processing macros; 599see 600.Xr nroff 1 601and 602.Xr troff 1 603.It Sy zoneinfo/ 604timezone configuration information; 605see 606.Xr tzfile 5 607.El 608.It Sy tests/ 609test programs; see 610.Xr atf-run 1 611for information on how to run them 612.El 613.Pp 614.It Sy /usr/src/ 615.Nx 616and local source files 617.Pp 618.Bl -tag -width "domestic/" -compact 619.It Sy bin/ 620source for utilities/files in 621.Pa /bin 622.It Sy common/ 623sources shared between kernel and userland 624.It Sy crypto/ 625cryptographic source, which may have import or export restrictions 626.It Sy dist/ 627third-party 628.Sq virgin 629source code, referenced by other parts of the source tree (deprecated, use 630.Sy external/ 631instead) 632.It Sy distrib/ 633tools and data-files for making distributions 634.It Sy doc/ 635documentation about the source tree (i.e., about the tree, not about 636how to use the built software.) 637.It Sy etc/ 638source (usually example files) for files in 639.Pa /etc 640.It Sy external/ 641source for programs from external third parties 642(where 643.Nx 644is the not the primary maintainer), 645grouped by license, and then products per license 646.Pp 647.Bl -tag -width "intel-fw-public/" -compact 648.It Sy apache2/ 649Apache 2.0 license. 650.It Sy bsd/ 651BSD (or equivalent) licensed software, 652possibly with the 653.Dq advertising clause . 654.It Sy cddl/ 655Common Development and Distribution License (the Sun license which is 656based on the Mozilla Public License version 1.1). 657.It Sy gpl2/ 658GNU Public License, version 2 (or earlier). 659.It Sy gpl3/ 660GNU Public License, version 3. 661.It Sy historical/ 662Lucent's old license. 663.It Sy ibm-public/ 664IBM's public license. 665.It Sy intel-fw-eula/ 666Intel firmware license with redistribution restricted to OEM. 667.It Sy intel-fw-public/ 668Intel firmware license permitting redistribution with 669terms similar to BSD licensed software. 670.It Sy intel-public/ 671Intel license permitting redistribution with terms similar to 672BSD licensed software. 673.It Sy mit/ 674MIT (X11) style license. 675.It Sy zlib/ 676BSD-like zlib license. 677.El 678.Pp 679.It Sy games/ 680source for utilities/files in 681.Pa /usr/games 682.It Sy gnu/ 683source for programs covered by the 684.Tn GNU 685license (or similar) (deprecated; use 686.Sy external/gpl2/ 687or 688.Sy external/gpl3/ 689as appropriate) 690.It Sy include/ 691source for files in 692.Pa /usr/include 693.It Sy lib/ 694source for libraries in 695.Pa /usr/lib 696.It Sy libexec/ 697source for utilities/files in 698.Pa /usr/libexec 699.It Sy regress/ 700various regression tests 701.It Sy rescue/ 702source/makefiles for /rescue 703.It Sy sbin/ 704source for utilities/files in 705.Pa /sbin 706.It Sy share/ 707source for files in 708.Pa /usr/share 709.Pp 710.Bl -tag -width "doc/" -compact 711.It Sy doc/ 712.Pp 713.Bl -tag -width "papers/" -compact 714.It Sy papers/ 715source for various Berkeley technical papers 716.It Sy psd/ 717source for Programmer's Supplementary Documents 718.It Sy smm/ 719source for System Manager's Manual 720.It Sy usd/ 721source for User's Supplementary Documents 722.Pp 723.El 724.El 725.It Sy sys/ 726kernel source files 727.Pp 728.Bl -tag -width "gdbscripts/" -compact 729.It Sy arch/ 730architecture-specific support 731.Pp 732.Bl -tag -width "ews4800mips/" -compact 733.It Sy acorn26/ 734Acorn Archimedes, A-series and R-series systems 735.It Sy acorn32/ 736Acorn RiscPC/A7000 and VLSI RC7500 737.It Sy algor/ 738Algorithmics Ltd. MIPS evaluations boards 739.It Sy alpha/ 740Digital/Compaq Alpha 741.It Sy amd64/ 742Computers with x86_64 capable CPUs 743.It Sy amiga/ 744Commodore Amiga and MacroSystem DraCo 745.It Sy amigappc/ 746PowerPC based Amiga boards 747.It Sy arc/ 748MIPS-based machines following the Advanced RISC Computing spec 749.It Sy arm/ 750ARM processor general support 751.It Sy atari/ 752Atari TT030, Falcon and Hades 753.It Sy bebox/ 754Be Inc. BeBox 755.It Sy cats/ 756Chalice Technology's CATS and Intel's EBSA-285 evaluation boards 757.It Sy cesfic/ 758CES FIC8234 VME processor board 759.It Sy cobalt/ 760Cobalt Networks' MIPS-based Microserver 761.It Sy dreamcast/ 762Sega Dreamcast game console 763.It Sy emips/ 764Machines based on Extensible MIPS 765.It Sy evbarm/ 766ARM based evaluation boards 767.It Sy evbmips/ 768MIPS based evaluation boards 769.It Sy evbppc/ 770PowerPC based evaluation boards and appliances 771.It Sy evbsh3/ 772SH3/SH4 based evaluation boards 773.It Sy ews4800mips/ 774NEC's MIPS based EWS4800 workstations 775.It Sy hp300/ 776Hewlett-Packard 9000/300 and 400 680x0-based workstations 777.It Sy hp700/ 778Hewlett-Packard 9000/700 HPPA based workstations 779.It Sy hpcarm/ 780StrongARM based WinCE PDA machines 781.It Sy hpcmips/ 782MIPS based WinCE PDA machines 783.It Sy hpcsh/ 784Hitachi SH3/4 based WinCE PDA machines 785.It Sy hppa/ 786HPPA processor general support 787.It Sy i386/ 78880x86-based IBM PCs and clones 789.It Sy ibmnws/ 790IBM Network Station 1000 791.It Sy iyonix/ 792Castle Technology's Iyonix ARM based PCs 793.It Sy luna68k/ 794Omron Tateishi Electric's 680x0-based LUNA workstations 795.It Sy m68k/ 796680x0 processor general support 797.It Sy mac68k/ 798Apple Macintosh with 68k CPU 799.It Sy macppc/ 800Apple Power Macintosh and clones 801.It Sy mips/ 802MIPS processor general support 803.It Sy mipsco/ 804MIPS Computer Systems Inc. family of workstations and servers 805.It Sy mmeye/ 806Brains Inc. SH3 based mmEye multimedia server 807.It Sy mvme68k/ 808Motorola MVME 680x0-based SBCs 809.It Sy mvmeppc/ 810Motorola PowerPC VME SBCs 811.It Sy netwinder/ 812StrongARM based NetWinder machines 813.It Sy news68k/ 814Sony's 680x0-based NEWS workstations 815.It Sy newsmips/ 816Sony's MIPS-based NEWS workstations 817.It Sy next68k/ 818NeXT 68k "black" hardware 819.It Sy ofppc/ 820Open Firmware PowerPC workstations 821.It Sy pmax/ 822Digital MIPS-based DECstations and DECsystems 823.It Sy powerpc/ 824PowerPC processor support 825.It Sy prep/ 826PReP (PowerPC Reference Platform) and CHRP machines 827.It Sy sandpoint/ 828Motorola Sandpoint reference platform 829.It Sy sbmips/ 830Broadcom/SiByte evaluation boards 831.It Sy sgimips/ 832Silicon Graphics' MIPS-based workstations 833.It Sy sh3/ 834SH3/SH4 processor general support 835.It Sy shark/ 836Digital DNARD ("Shark") 837.It Sy sparc/ 838Sun Microsystems SPARC (32-bit) and UltraSPARC (in 32-bit mode) 839.It Sy sparc64/ 840Sun Microsystems UltraSPARC (in native 64-bit mode) 841.It Sy sun2/ 842Sun Microsystems 68010-based Sun 2 architecture 843.It Sy sun3/ 844Sun Microsystems 68020/68030-based Sun 3/3x architecture 845.It Sy sun68k/ 846680x0-based Sun architecture general support 847.It Sy vax/ 848Digital VAX 849.It Sy x68k/ 850Sharp X680x0 680x0-based workstations 851.It Sy x86/ 852General support for PC/AT compatibles with ia32 or x86_64 CPUs 853.It Sy xen/ 854The Xen virtual machine monitor 855.It Sy zaurus/ 856Sharp C3x00 Arm based PDA 857.El 858.Pp 859.It Sy compat/ 860kernel compatibility modules directory 861.Pp 862.Bl -tag -width "ossaudio/" -compact 863.It Sy common/ 864common compatibility routines, old 865.Bx 4 866and 867.Nx 868routines. 869.It Sy freebsd/ 870support for 871.Fx 872binaries; see 873.Xr compat_freebsd 8 874.It Sy hpux/ 875support for 68000 HP-UX binaries 876.It Sy ibcs2/ 877support for Intel Binary binaries 878.It Sy linux/ 879support for Linux binaries; see 880.Xr compat_linux 8 881.It Sy m68k4k/ 882support for 4KB page 68000 binaries 883.It Sy netbsd32/ 884support for 885.Nx 88632-bit binaries on 64 bit platforms with compatible CPU families 887.It Sy osf1/ 888support for 889.Tn Digital 890.Ux 891.Po 892formerly 893.Tn OSF/1 894.Pc 895binaries 896.It Sy ossaudio/ 897support for OSS audio 898.It Sy sunos/ 899support for 900.Tn SunOS 4.x 901binaries; see 902.Xr compat_sunos 8 903.It Sy svr4/ 904support for System V Release 4 binaries; see 905.Xr compat_svr4 8 906.It Sy ultrix/ 907support for 908.Tn ULTRIX 909binaries 910.It Sy vax1k/ 911support for older VAX binaries that started on a 1 KB boundary 912.El 913.Pp 914.It Sy conf/ 915architecture independent configuration directory 916.It Sy crypto/ 917cryptographic kernel source, which may have import or export restrictions 918.It Sy ddb/ 919in kernel debugger 920.It Sy dev/ 921architecture independent device support 922.It Sy fs/ 923miscellaneous file systems 924.Bl -tag -width "filecorefs/" -compact 925.It Sy adosfs/ 926AmigaDOS file-system support; see 927.Xr mount_ados 8 928.It Sy cd9660/ 929support for the ISO-9660 filesystem; see 930.Xr mount_cd9660 8 931.It Sy filecorefs/ 932support for the Acorn RISC OS filecore filesystem; see 933.Xr mount_filecore 8 934.It Sy msdosfs/ 935.Tn MS-DOS 936file system; see 937.Xr mount_msdos 8 938.It Sy ntfs/ 939NTFS filesystem support; see 940.Xr mount_ntfs 8 941.It Sy ptyfs/ 942pseudo-terminal device filesystem; see 943.Xr mount_ptyfs 8 944.It Sy smbfs/ 945SMB/CIFS filesystem support; see 946.Xr mount_smbfs 8 947.It Sy union/ 948union file system; see 949.Xr mount_union 8 950.El 951.It Sy gdbscripts/ 952support for accessing kernel structures from within the debugger 953.Xr gdb 1 . 954.It Sy ipkdb/ 955support for kernel debugging over the network 956.Pp 957.It Sy kern/ 958support for the high kernel (system calls) 959.It Sy lib/ 960kernel libraries 961.Pp 962.Bl -tag -width "libkern/" -compact 963.It Sy libkern/ 964C library routines used in the kernel 965.It Sy libsa/ 966machine independent stand alone kernel library 967.It Sy libz/ 968compression library 969.El 970.Pp 971.It Sy miscfs/ 972miscellaneous file systems 973.Pp 974.Bl -tag -width "deadfs/" -compact 975.It Sy deadfs/ 976kernel only dead file system 977.It Sy fdesc/ 978file descriptor file system; see 979.Xr mount_fdesc 8 980.It Sy fifofs/ 981POSIX FIFO support 982.It Sy genfs/ 983kernel only generic file system 984.It Sy kernfs/ 985kernel namespace file system; see 986.Xr mount_kernfs 8 987.It Sy nullfs/ 988loop back file system; see 989.Xr mount_null 8 990.It Sy overlay/ 991overlay file system; see 992.Xr mount_overlay 8 993.It Sy procfs/ 994process file system; see 995.Xr mount_procfs 8 996.It Sy specfs/ 997kernel only special file system 998.It Sy syncfs/ 999kernel trickle sync algorithm 1000.It Sy umapfs/ 1001user and group re-mapping file system; see 1002.Xr mount_umap 8 1003.El 1004.Pp 1005.It Sy net/ 1006miscellaneous networking support 1007.It Sy netatalk/ 1008AppleTalk networking support 1009.It Sy netinet/ 1010IP networking support 1011.It Sy netinet6/ 1012IPv6 networking support 1013.It Sy netkey/ 1014Key database for IPsec networking support 1015.It Sy netnatm/ 1016ATM networking support 1017.It Sy nfs/ 1018NFS support 1019.It Sy stand/ 1020kernel standalone support 1021.It Sy sys/ 1022kernel (and system) include files 1023.It Sy ufs/ 1024local filesystem support 1025.Pp 1026.Bl -tag -width "ffs/" -compact 1027.It Sy ffs/ 1028the Berkeley Fast File System 1029.It Sy lfs/ 1030the log-structured file system 1031.It Sy mfs/ 1032the in-memory file system 1033.It Sy ufs/ 1034shared 1035.Ux 1036file system support 1037.El 1038.It Sy uvm/ 1039UVM virtual memory system 1040.El 1041.It Sy tests/ 1042source for test programs in 1043.Pa /usr/tests 1044.It Sy usr.bin/ 1045source for utilities/files in 1046.Pa /usr/bin 1047.It Sy usr.sbin/ 1048source for utilities/files in 1049.Pa /usr/sbin 1050.El 1051.It Sy /var/ 1052multi-purpose log, temporary, transient, and spool files 1053.Pp 1054.Bl -tag -width "preserve/" -compact 1055.It Sy account/ 1056system accounting files 1057.Pp 1058.Bl -tag -width "acct" -compact 1059.It Sy acct 1060execution accounting file; 1061see 1062.Xr acct 5 1063.El 1064.Pp 1065.It Sy at/ 1066timed command scheduling files; 1067see 1068.Xr at 1 1069.It Sy backups/ 1070miscellaneous backup files, largely of files found in 1071.Pa /etc 1072.It Sy chroot/ 1073home directories of applications which are run in a 1074.Xr chroot 8 1075.Dq cage . 1076.It Sy crash/ 1077system crash dumps; see 1078.Xr savecore 8 1079.It Sy cron/ 1080scheduled commands configuration files; see 1081.Xr cron 8 1082.It Sy db/ 1083miscellaneous automatically generated system-specific database files, 1084and persistent files used in the maintenance of third party software. 1085.Pp 1086.Bl -tag -width "monthly.out" -compact 1087.It Sy pkg 1088default location for metadata related to third party software 1089packages. 1090See 1091.Xr pkg_add 1 1092for more details of the 1093.Nx 1094Packages Collection, or pkgsrc. 1095.El 1096.Pp 1097.It Sy games/ 1098miscellaneous game status and log files 1099.It Sy heimdal/ 1100Kerberos 5 KDC database; see 1101.Xr kdc 8 1102.It Sy log/ 1103miscellaneous system log files 1104.Pp 1105.Bl -tag -width "monthly.out" -compact 1106.It Sy amd.* 1107.Xr amd 8 1108logs 1109.It Sy daily.out 1110output of the last run of the 1111.Pa /etc/daily 1112script 1113.It Sy ftp.* 1114.Xr ftp 1 1115logs 1116.It Sy kerberos.* 1117.Xr kerberos 8 1118logs 1119.It Sy lastlog 1120system last time logged in log; see 1121.Xr utmp 5 1122.It Sy lpd-errs.* 1123printer daemon error logs; see 1124.Xr lpd 8 1125.It Sy maillog.* 1126.Xr sendmail 1 1127log files 1128.It Sy messages.* 1129general system information log 1130.It Sy monthly.out 1131output of the last run of the 1132.Pa /etc/monthly 1133script 1134.It Sy secure 1135sensitive security information log 1136.It Sy sendmail.st 1137.Xr sendmail 1 1138statistics 1139.It Sy timed.* 1140.Xr timed 8 1141logs 1142.It Sy weekly.out 1143output of the last run of the 1144.Pa /etc/weekly 1145script 1146.It Sy wtmp 1147login/logout log; 1148see 1149.Xr utmp 5 1150.El 1151.Pp 1152.It Sy mail/ 1153user system mailboxes 1154.It Sy msgs/ 1155system messages; see 1156.Xr msgs 1 1157.\" since we use nvi (now called vi) this isn't the place any more, is it? 1158.It Sy preserve/ 1159temporary home of files preserved after an accidental death of 1160.Xr ex 1 1161or 1162.Xr vi 1 1163.It Sy quotas/ 1164filesystem quota information 1165.It Sy run/ 1166system information files, rebuilt after each reboot 1167.Pp 1168.Bl -tag -width "utmp" -compact 1169.It Sy utmp 1170database of current users; see 1171.Xr utmp 5 1172.El 1173.Pp 1174.It Sy rwho/ 1175rwho data files; see 1176.Xr rwhod 8 , 1177.Xr rwho 1 , 1178and 1179.Xr ruptime 1 1180.It Sy spool/ 1181miscellaneous printer and mail system spooling directories 1182.Pp 1183.Bl -tag -width "postfix/" -compact 1184.It Sy ftp/ 1185commonly 1186.Dq ~ftp , 1187the anonymous ftp root directory; see 1188.Xr ftpd 8 1189.It Sy mqueue/ 1190sendmail mail queue; 1191see 1192.Xr sendmail 1 1193.It Sy news/ 1194Network news archival and spooling directories 1195.It Sy output/ 1196printer spooling directories 1197.It Sy postfix/ 1198postfix mail queue; 1199see 1200.Xr postfix 1 1201.El 1202.Pp 1203.It Sy tmp/ 1204temporary files that are not discarded between system reboots 1205.Pp 1206.Bl -tag -width "vi.recover/" -compact 1207.It Sy vi.recover/ 1208recovery directory for new 1209.Xr vi 1 1210.El 1211.Pp 1212.It Sy yp/ 1213Databases and configuration for the NIS (YP) system; see 1214.Xr nis 8 . 1215.El 1216.El 1217.Sh SEE ALSO 1218.Xr apropos 1 , 1219.Xr ls 1 , 1220.Xr whatis 1 , 1221.Xr whereis 1 , 1222.Xr which 1 , 1223.Xr paths 3 1224.Sh HISTORY 1225A 1226.Nm 1227manual page appeared in 1228.At v7 . 1229