1.\" $NetBSD: hier.7,v 1.103 2013/03/14 19:16:52 njoly 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 February 5, 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 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 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 /libexec/ 352system utilities (such as the dynamic linker) required by programs 353and libraries that cannot rely upon 354.Pa /usr/libexec/ 355being available. 356.It Sy /mnt/ 357empty directory commonly used by 358system administrators as a temporary mount point 359.It Sy /netbsd 360pure kernel executable (the operating system loaded into memory 361at boot time). 362.It Sy /proc/ 363mount point for the process file system; see 364.Xr mount_procfs 8 365.It Sy /rescue/ 366statically linked rescue tools, for use in system recovery 367.It Sy /root/ 368home directory for the super-user 369.Pp 370.Bl -tag -width ".profile" -compact 371.It Sy \&.cshrc 372super-user start-up file 373.It Sy \&.login 374super-user start-up file 375.It Sy \&.profile 376super-user start-up file 377.It Sy \&.rhosts 378super-user id mapping between machines 379.El 380.It Sy /sbin/ 381system programs and administration utilities 382used in both single-user and multi-user environments 383.It Sy /stand/ 384programs used in a standalone environment 385.It Sy /tmp/ 386temporary files, usually a 387.Xr mfs 8 388memory-based filesystem (the contents of 389.Pa /tmp 390are usually 391.Em not 392preserved across a system reboot) 393.It Sy /usr/ 394contains the majority of the system utilities and files 395.Pp 396.Bl -tag -width "libdata/" -compact 397.It Sy X11R6/ 398X11 files 399.It Sy X11R7/ 400X11 files 401.Pp 402.Bl -tag -width "include/" -compact 403.It Sy bin/ 404X11 binaries 405.It Sy include/ 406X11 include files 407.It Sy lib/ 408X11 libraries 409.El 410.Pp 411.It Sy bin/ 412common utilities, programming tools, and applications 413.It Sy games/ 414the important stuff 415.It Sy include/ 416standard C include files 417.Pp 418.Bl -tag -width "protocols/" -compact 419.It Sy arpa/ 420include files for Internet service protocols 421.It Sy atf/ 422include files for the Automated Testing Framework; see 423.Xr atf 7 424.It Sy g++/ 425include files for the C++ compiler 426.It Sy machine/ 427machine specific include files 428.It Sy net/ 429.It Sy netatalk/ 430C include files for AppleTalk protocols 431miscellaneous network include files; 432see 433.Xr atalk 4 434.It Sy netinet/ 435include files for Internet standard protocols; see 436.Xr inet 4 437.It Sy netinet6/ 438include files for Internet protocol version 6; see 439.Xr inet6 4 440.It Sy netkey/ 441include files for secret key management, used for security protocols; see 442.Xr ipsec 4 443.It Sy netnatm/ 444C include files for native mode ATM 445.It Sy nfs/ 446C include files for NFS (Network File System) 447.It Sy protocols/ 448C include files for Berkeley service protocols 449.It Sy sys/ 450system C include files (kernel data structures) 451.It Sy ufs/ 452C include files for UFS (The U-word File System) 453.El 454.Pp 455.It Sy lib/ 456archive, profiled, position independent archive, and shared libraries 457.Pp 458.Bl -tag -width "lua/" -compact 459.It Sy lua/ 460.Bl -tag -width "5.1/" -compact 461.It Sy 5.1/ 462Lua 5.1 modules 463.El 464.El 465.Pp 466.It Sy libdata/ 467miscellaneous utility data files 468.It Sy libexec/ 469system daemons \*[Am] system utilities (executed by other programs) 470.Pp 471.It Sy mdec/ 472boot blocks, etc. 473.It Sy obj/ 474architecture-specific target tree produced by building the 475.Pa /usr/src 476tree; normally a symbolic link or mounted filesystem 477.It Sy pkg/ 478packages maintained by groups other than the 479.Nx 480Project. 481.Pp 482.Bl -tag -width "include/" -compact 483.It Sy bin/ 484contributed binaries 485.It Sy include/ 486contributed include files 487.It Sy lib/ 488contributed libraries 489.It Sy libdata/ 490contributed data files 491.It Sy libexec/ 492contributed daemons 493.It Sy sbin/ 494contributed system utilities 495.El 496.Pp 497.It Sy pkgsrc/ 498build descriptions ("packages") for the 499.Nx 500packages system. 501.Pp 502.Bl -tag -width "distfilesX" -compact 503.It Sy distfiles/ 504Where unchanged source archives are fetched to/stored 505.It Sy packages/ 506Where compiled binary packages are stored 507.El 508.Pp 509There are also several other subdirectories which contain packages of 510a certain category, e.g., archivers, graphics, ... 511.Pp 512.It Sy sbin/ 513system daemons and system utilities (normally executed by the super-user) 514.It Sy share/ 515architecture-independent text files 516.Pp 517.Bl -tag -width "calendar/" -compact 518.It Sy calendar/ 519a variety of calendar files; see 520.Xr calendar 1 521.It Sy dict/ 522word lists; 523see 524.Xr look 1 525and 526.Xr spell 1 527.Pp 528.Bl -tag -width "special/" -compact 529.It Sy words 530common words 531.It Sy web2 532words of Webster's 2nd International 533.It Sy papers/ 534reference databases; 535see 536.Xr refer 1 537.It Sy special/ 538custom word lists; 539see 540.Xr spell 1 541.El 542.Pp 543.It Sy doc/ 544miscellaneous documentation; source for most of the printed 545.Bx 4.3 546manuals (available 547from the 548.Tn USENIX 549association) 550.It Sy games/ 551text files used by various games 552.It Sy i18n/ 553internationalization databases; see 554.Xr iconv 3 555.It Sy locale/ 556locale databases and gettext message catalogs; see 557.Xr setlocale 3 558and 559.Xr gettext 3 560.It Sy man/ 561formatted manual pages 562.It Sy me/ 563macros for use with the 564.Xr me 7 565macro package 566.It Sy misc/ 567miscellaneous system-wide text files 568.Pp 569.Bl -tag -width "terminfo.cdb" -compact 570.It Sy terminfo 571terminal characteristics database; 572see 573.Xr terminfo 5 574.It Sy terminfo.cdb 575database form of terminfo file; see 576.Xr tic 1 577.El 578.Pp 579.It Sy mk/ 580include files for 581.Xr make 1 582.It Sy ms/ 583macros for use with the 584.Xr ms 7 585macro package 586.It Sy nls/ 587message catalogs; see 588.Xr catgets 3 589.It Sy skel/ 590sample initialization files for new user accounts 591.It Sy tmac/ 592text processing macros; 593see 594.Xr nroff 1 595and 596.Xr troff 1 597.It Sy zoneinfo/ 598timezone configuration information; 599see 600.Xr tzfile 5 601.El 602.It Sy tests/ 603test programs; see 604.Xr atf-run 1 605for information on how to run them 606.El 607.Pp 608.It Sy /usr/src/ 609.Nx 610and local source files 611.Pp 612.Bl -tag -width "domestic/" -compact 613.It Sy bin/ 614source for utilities/files in 615.Pa /bin 616.It Sy common/ 617sources shared between kernel and userland 618.It Sy crypto/ 619cryptographic source, which may have import or export restrictions 620.It Sy dist/ 621third-party 622.Sq virgin 623source code, referenced by other parts of the source tree (deprecated, use 624.Sy external/ 625instead) 626.It Sy distrib/ 627tools and data-files for making distributions 628.It Sy doc/ 629documentation about the source tree (i.e., about the tree, not about 630how to use the built software.) 631.It Sy etc/ 632source (usually example files) for files in 633.Pa /etc 634.It Sy external/ 635source for programs from external third parties 636(where 637.Nx 638is the not the primary maintainer), 639grouped by license, and then products per license 640.Pp 641.Bl -tag -width "intel-fw-public/" -compact 642.It Sy apache2/ 643Apache 2.0 license. 644.It Sy bsd/ 645BSD (or equivalent) licensed software, 646possibly with the 647.Dq advertising clause . 648.It Sy cddl/ 649Common Development and Distribution License (the Sun license which is 650based on the Mozilla Public License version 1.1). 651.It Sy gpl2/ 652GNU Public License, version 2 (or earlier). 653.It Sy gpl3/ 654GNU Public License, version 3. 655.It Sy historical/ 656Lucent's old license. 657.It Sy ibm-public/ 658IBM's public license. 659.It Sy intel-fw-eula/ 660Intel firmware license with redistribution restricted to OEM. 661.It Sy intel-fw-public/ 662Intel firmware license permitting redistribution with 663terms similar to BSD licensed software. 664.It Sy intel-public/ 665Intel license permitting redistribution with terms similar to 666BSD licensed software. 667.It Sy mit/ 668MIT (X11) style license. 669.It Sy zlib/ 670BSD-like zlib license. 671.El 672.Pp 673.It Sy games/ 674source for utilities/files in 675.Pa /usr/games 676.It Sy gnu/ 677source for programs covered by the 678.Tn GNU 679license (or similar) (deprecated; use 680.Sy external/gpl2/ 681or 682.Sy external/gpl3/ 683as appropriate) 684.It Sy include/ 685source for files in 686.Pa /usr/include 687.It Sy lib/ 688source for libraries in 689.Pa /usr/lib 690.It Sy libexec/ 691source for utilities/files in 692.Pa /usr/libexec 693.It Sy regress/ 694various regression tests 695.It Sy rescue/ 696source/makefiles for /rescue 697.It Sy sbin/ 698source for utilities/files in 699.Pa /sbin 700.It Sy share/ 701source for files in 702.Pa /usr/share 703.Pp 704.Bl -tag -width "doc/" -compact 705.It Sy doc/ 706.Pp 707.Bl -tag -width "papers/" -compact 708.It Sy papers/ 709source for various Berkeley technical papers 710.It Sy psd/ 711source for Programmer's Supplementary Documents 712.It Sy smm/ 713source for System Manager's Manual 714.It Sy usd/ 715source for User's Supplementary Documents 716.Pp 717.El 718.El 719.It Sy sys/ 720kernel source files 721.Pp 722.Bl -tag -width "gdbscripts/" -compact 723.It Sy arch/ 724architecture-specific support 725.Pp 726.Bl -tag -width "ews4800mips/" -compact 727.It Sy acorn26/ 728Acorn Archimedes, A-series and R-series systems 729.It Sy acorn32/ 730Acorn RiscPC/A7000 and VLSI RC7500 731.It Sy algor/ 732Algorithmics Ltd. MIPS evaluations boards 733.It Sy alpha/ 734Digital/Compaq Alpha 735.It Sy amd64/ 736Computers with x86_64 capable CPUs 737.It Sy amiga/ 738Commodore Amiga and MacroSystem DraCo 739.It Sy amigappc/ 740PowerPC based Amiga boards 741.It Sy arc/ 742MIPS-based machines following the Advanced RISC Computing spec 743.It Sy arm/ 744ARM processor general support 745.It Sy atari/ 746Atari TT030, Falcon and Hades 747.It Sy bebox/ 748Be Inc. BeBox 749.It Sy cats/ 750Chalice Technology's CATS and Intel's EBSA-285 evaluation boards 751.It Sy cesfic/ 752CES FIC8234 VME processor board 753.It Sy cobalt/ 754Cobalt Networks' MIPS-based Microserver 755.It Sy dreamcast/ 756Sega Dreamcast game console 757.It Sy emips/ 758Machines based on Extensible MIPS 759.It Sy evbarm/ 760ARM based evaluation boards 761.It Sy evbmips/ 762MIPS based evaluation boards 763.It Sy evbppc/ 764PowerPC based evaluation boards and appliances 765.It Sy evbsh3/ 766SH3/SH4 based evaluation boards 767.It Sy ews4800mips/ 768NEC's MIPS based EWS4800 workstations 769.It Sy hp300/ 770Hewlett-Packard 9000/300 and 400 680x0-based workstations 771.It Sy hp700/ 772Hewlett-Packard 9000/700 HPPA based workstations 773.It Sy hpcarm/ 774StrongARM based WinCE PDA machines 775.It Sy hpcmips/ 776MIPS based WinCE PDA machines 777.It Sy hpcsh/ 778Hitachi SH3/4 based WinCE PDA machines 779.It Sy hppa/ 780HPPA processor general support 781.It Sy i386/ 78280x86-based IBM PCs and clones 783.It Sy ibmnws/ 784IBM Network Station 1000 785.It Sy iyonix/ 786Castle Technology's Iyonix ARM based PCs 787.It Sy luna68k/ 788Omron Tateishi Electric's 680x0-based LUNA workstations 789.It Sy m68k/ 790680x0 processor general support 791.It Sy mac68k/ 792Apple Macintosh with 68k CPU 793.It Sy macppc/ 794Apple Power Macintosh and clones 795.It Sy mips/ 796MIPS processor general support 797.It Sy mipsco/ 798MIPS Computer Systems Inc. family of workstations and servers 799.It Sy mmeye/ 800Brains Inc. SH3 based mmEye multimedia server 801.It Sy mvme68k/ 802Motorola MVME 680x0-based SBCs 803.It Sy mvmeppc/ 804Motorola PowerPC VME SBCs 805.It Sy netwinder/ 806StrongARM based NetWinder machines 807.It Sy news68k/ 808Sony's 680x0-based NEWS workstations 809.It Sy newsmips/ 810Sony's MIPS-based NEWS workstations 811.It Sy next68k/ 812NeXT 68k "black" hardware 813.It Sy ofppc/ 814Open Firmware PowerPC workstations 815.It Sy pmax/ 816Digital MIPS-based DECstations and DECsystems 817.It Sy powerpc/ 818PowerPC processor support 819.It Sy prep/ 820PReP (PowerPC Reference Platform) and CHRP machines 821.It Sy sandpoint/ 822Motorola Sandpoint reference platform 823.It Sy sbmips/ 824Broadcom/SiByte evaluation boards 825.It Sy sgimips/ 826Silicon Graphics' MIPS-based workstations 827.It Sy sh3/ 828SH3/SH4 processor general support 829.It Sy shark/ 830Digital DNARD ("Shark") 831.It Sy sparc/ 832Sun Microsystems SPARC (32-bit) and UltraSPARC (in 32-bit mode) 833.It Sy sparc64/ 834Sun Microsystems UltraSPARC (in native 64-bit mode) 835.It Sy sun2/ 836Sun Microsystems 68010-based Sun 2 architecture 837.It Sy sun3/ 838Sun Microsystems 68020/68030-based Sun 3/3x architecture 839.It Sy sun68k/ 840680x0-based Sun architecture general support 841.It Sy vax/ 842Digital VAX 843.It Sy x68k/ 844Sharp X680x0 680x0-based workstations 845.It Sy x86/ 846General support for PC/AT compatibles with ia32 or x86_64 CPUs 847.It Sy xen/ 848The Xen virtual machine monitor 849.It Sy zaurus/ 850Sharp C3x00 Arm based PDA 851.El 852.Pp 853.It Sy compat/ 854kernel compatibility modules directory 855.Pp 856.Bl -tag -width "ossaudio/" -compact 857.It Sy common/ 858common compatibility routines, old 859.Bx 4 860and 861.Nx 862routines. 863.It Sy freebsd/ 864support for 865.Fx 866binaries; see 867.Xr compat_freebsd 8 868.It Sy hpux/ 869support for 68000 HP-UX binaries 870.It Sy ibcs2/ 871support for Intel Binary binaries 872.It Sy linux/ 873support for Linux binaries; see 874.Xr compat_linux 8 875.It Sy m68k4k/ 876support for 4KB page 68000 binaries 877.It Sy netbsd32/ 878support for 879.Nx 88032-bit binaries on 64 bit platforms with compatible CPU families 881.It Sy osf1/ 882support for 883.Tn Digital 884.Ux 885.Po 886formerly 887.Tn OSF/1 888.Pc 889binaries 890.It Sy ossaudio/ 891support for OSS audio 892.It Sy sunos/ 893support for 894.Tn SunOS 4.x 895binaries; see 896.Xr compat_sunos 8 897.It Sy svr4/ 898support for System V Release 4 binaries; see 899.Xr compat_svr4 8 900.It Sy ultrix/ 901support for 902.Tn ULTRIX 903binaries 904.It Sy vax1k/ 905support for older VAX binaries that started on a 1 KB boundary 906.El 907.Pp 908.It Sy conf/ 909architecture independent configuration directory 910.It Sy crypto/ 911cryptographic kernel source, which may have import or export restrictions 912.It Sy ddb/ 913in kernel debugger 914.It Sy dev/ 915architecture independent device support 916.It Sy fs/ 917miscellaneous file systems 918.Bl -tag -width "filecorefs/" -compact 919.It Sy adosfs/ 920AmigaDOS file-system support; see 921.Xr mount_ados 8 922.It Sy cd9660/ 923support for the ISO-9660 filesystem; see 924.Xr mount_cd9660 8 925.It Sy filecorefs/ 926support for the Acorn RISC OS filecore filesystem; see 927.Xr mount_filecore 8 928.It Sy msdosfs/ 929.Tn MS-DOS 930file system; see 931.Xr mount_msdos 8 932.It Sy ntfs/ 933NTFS filesystem support; see 934.Xr mount_ntfs 8 935.It Sy ptyfs/ 936pseudo-terminal device filesystem; see 937.Xr mount_ptyfs 8 938.It Sy smbfs/ 939SMB/CIFS filesystem support; see 940.Xr mount_smbfs 8 941.It Sy union/ 942union file system; see 943.Xr mount_union 8 944.El 945.It Sy gdbscripts/ 946support for accessing kernel structures from within the debugger 947.Xr gdb 1 . 948.It Sy ipkdb/ 949support for kernel debugging over the network 950.Pp 951.It Sy kern/ 952support for the high kernel (system calls) 953.It Sy lib/ 954kernel libraries 955.Pp 956.Bl -tag -width "libkern/" -compact 957.It Sy libkern/ 958C library routines used in the kernel 959.It Sy libsa/ 960machine independent stand alone kernel library 961.It Sy libz/ 962compression library 963.El 964.Pp 965.It Sy miscfs/ 966miscellaneous file systems 967.Pp 968.Bl -tag -width "deadfs/" -compact 969.It Sy deadfs/ 970kernel only dead file system 971.It Sy fdesc/ 972file descriptor file system; see 973.Xr mount_fdesc 8 974.It Sy fifofs/ 975POSIX FIFO support 976.It Sy genfs/ 977kernel only generic file system 978.It Sy kernfs/ 979kernel namespace file system; see 980.Xr mount_kernfs 8 981.It Sy nullfs/ 982loop back file system; see 983.Xr mount_null 8 984.It Sy overlay/ 985overlay file system; see 986.Xr mount_overlay 8 987.It Sy procfs/ 988process file system; see 989.Xr mount_procfs 8 990.It Sy specfs/ 991kernel only special file system 992.It Sy syncfs/ 993kernel trickle sync algorithm 994.It Sy umapfs/ 995user and group re-mapping file system; see 996.Xr mount_umap 8 997.El 998.Pp 999.It Sy net/ 1000miscellaneous networking support 1001.It Sy netatalk/ 1002AppleTalk networking support 1003.It Sy netinet/ 1004IP networking support 1005.It Sy netinet6/ 1006IPv6 networking support 1007.It Sy netkey/ 1008Key database for IPsec networking support 1009.It Sy netnatm/ 1010ATM networking support 1011.It Sy nfs/ 1012NFS support 1013.It Sy stand/ 1014kernel standalone support 1015.It Sy sys/ 1016kernel (and system) include files 1017.It Sy ufs/ 1018local filesystem support 1019.Pp 1020.Bl -tag -width "ffs/" -compact 1021.It Sy ffs/ 1022the Berkeley Fast File System 1023.It Sy lfs/ 1024the log-structured file system 1025.It Sy mfs/ 1026the in-memory file system 1027.It Sy ufs/ 1028shared 1029.Ux 1030file system support 1031.El 1032.It Sy uvm/ 1033UVM virtual memory system 1034.El 1035.It Sy tests/ 1036source for test programs in 1037.Pa /usr/tests 1038.It Sy usr.bin/ 1039source for utilities/files in 1040.Pa /usr/bin 1041.It Sy usr.sbin/ 1042source for utilities/files in 1043.Pa /usr/sbin 1044.El 1045.It Sy /var/ 1046multi-purpose log, temporary, transient, and spool files 1047.Pp 1048.Bl -tag -width "preserve/" -compact 1049.It Sy account/ 1050system accounting files 1051.Pp 1052.Bl -tag -width "acct" -compact 1053.It Sy acct 1054execution accounting file; 1055see 1056.Xr acct 5 1057.El 1058.Pp 1059.It Sy at/ 1060timed command scheduling files; 1061see 1062.Xr at 1 1063.It Sy backups/ 1064miscellaneous backup files, largely of files found in 1065.Pa /etc 1066.It Sy chroot/ 1067home directories of applications which are run in a 1068.Xr chroot 8 1069.Dq cage . 1070.It Sy crash/ 1071system crash dumps; see 1072.Xr savecore 8 1073.It Sy cron/ 1074scheduled commands configuration files; see 1075.Xr cron 8 1076.It Sy db/ 1077miscellaneous automatically generated system-specific database files, 1078and persistent files used in the maintenance of third party software. 1079.Pp 1080.Bl -tag -width "monthly.out" -compact 1081.It Sy pkg 1082default location for metadata related to third party software 1083packages. 1084See 1085.Xr pkg_add 1 1086for more details of the 1087.Nx 1088Packages Collection, or pkgsrc. 1089.El 1090.Pp 1091.It Sy games/ 1092miscellaneous game status and log files 1093.It Sy heimdal/ 1094Kerberos 5 KDC database; see 1095.Xr kdc 8 1096.It Sy log/ 1097miscellaneous system log files 1098.Pp 1099.Bl -tag -width "monthly.out" -compact 1100.It Sy amd.* 1101.Xr amd 8 1102logs 1103.It Sy daily.out 1104output of the last run of the 1105.Pa /etc/daily 1106script 1107.It Sy ftp.* 1108.Xr ftp 1 1109logs 1110.It Sy kerberos.* 1111.Xr kerberos 8 1112logs 1113.It Sy lastlog 1114system last time logged in log; see 1115.Xr utmp 5 1116.It Sy lpd-errs.* 1117printer daemon error logs; see 1118.Xr lpd 8 1119.It Sy maillog.* 1120.Xr sendmail 8 1121log files 1122.It Sy messages.* 1123general system information log 1124.It Sy monthly.out 1125output of the last run of the 1126.Pa /etc/monthly 1127script 1128.It Sy secure 1129sensitive security information log 1130.It Sy sendmail.st 1131.Xr sendmail 8 1132statistics 1133.It Sy timed.* 1134.Xr timed 8 1135logs 1136.It Sy weekly.out 1137output of the last run of the 1138.Pa /etc/weekly 1139script 1140.It Sy wtmp 1141login/logout log; 1142see 1143.Xr utmp 5 1144.El 1145.Pp 1146.It Sy mail/ 1147user system mailboxes 1148.It Sy msgs/ 1149system messages; see 1150.Xr msgs 1 1151.\" since we use nvi (now called vi) this isn't the place any more, is it? 1152.It Sy preserve/ 1153temporary home of files preserved after an accidental death of 1154.Xr ex 1 1155or 1156.Xr vi 1 1157.It Sy quotas/ 1158filesystem quota information 1159.It Sy run/ 1160system information files, rebuilt after each reboot 1161.Pp 1162.Bl -tag -width "utmp" -compact 1163.It Sy utmp 1164database of current users; see 1165.Xr utmp 5 1166.El 1167.Pp 1168.It Sy rwho/ 1169rwho data files; see 1170.Xr rwhod 8 , 1171.Xr rwho 1 , 1172and 1173.Xr ruptime 1 1174.It Sy spool/ 1175miscellaneous printer and mail system spooling directories 1176.Pp 1177.Bl -tag -width "uucppublic/" -compact 1178.It Sy ftp/ 1179commonly 1180.Dq ~ftp , 1181the anonymous ftp root directory; see 1182.Xr ftpd 8 1183.It Sy mqueue/ 1184sendmail mail queue; 1185see 1186.Xr sendmail 8 1187.It Sy news/ 1188Network news archival and spooling directories 1189.It Sy output/ 1190printer spooling directories 1191.It Sy postfix/ 1192postfix mail queue; 1193see 1194.Xr postfix 1 1195.It Sy uucp/ 1196uucp spool directory 1197.It Sy uucppublic/ 1198commonly 1199.Dq ~uucp , 1200the uucp public temporary directory; see 1201.Xr uucp 1 1202.El 1203.Pp 1204.It Sy tmp/ 1205temporary files that are not discarded between system reboots 1206.Pp 1207.Bl -tag -width "vi.recover/" -compact 1208.It Sy vi.recover/ 1209recovery directory for new 1210.Xr vi 1 1211.El 1212.Pp 1213.It Sy yp/ 1214Databases and configuration for the NIS (YP) system; see 1215.Xr nis 8 . 1216.El 1217.El 1218.Sh SEE ALSO 1219.Xr apropos 1 , 1220.Xr ls 1 , 1221.Xr whatis 1 , 1222.Xr whereis 1 , 1223.Xr which 1 , 1224.Xr paths 3 1225.Sh HISTORY 1226A 1227.Nm 1228manual page appeared in 1229.At v7 . 1230