xref: /freebsd/share/man/man5/fstab.5 (revision a616b25342fe1ceaa2bb7c68d9791f6586656fed)
1afe61c15SRodney W. Grimes.\" Copyright (c) 1980, 1989, 1991, 1993
2afe61c15SRodney W. Grimes.\"	The Regents of the University of California.  All rights reserved.
3afe61c15SRodney W. Grimes.\"
4afe61c15SRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without
5afe61c15SRodney W. Grimes.\" modification, are permitted provided that the following conditions
6afe61c15SRodney W. Grimes.\" are met:
7afe61c15SRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright
8afe61c15SRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer.
9afe61c15SRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright
10afe61c15SRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer in the
11afe61c15SRodney W. Grimes.\"    documentation and/or other materials provided with the distribution.
12dda5b397SEitan Adler.\" 3. Neither the name of the University nor the names of its contributors
13afe61c15SRodney W. Grimes.\"    may be used to endorse or promote products derived from this software
14afe61c15SRodney W. Grimes.\"    without specific prior written permission.
15afe61c15SRodney W. Grimes.\"
16afe61c15SRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17afe61c15SRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18afe61c15SRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19afe61c15SRodney W. Grimes.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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24afe61c15SRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26afe61c15SRodney W. Grimes.\" SUCH DAMAGE.
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28afe61c15SRodney W. Grimes.\"     @(#)fstab.5	8.1 (Berkeley) 6/5/93
297f3dea24SPeter Wemm.\" $FreeBSD$
30afe61c15SRodney W. Grimes.\"
31cd2fccbbSChristian Brueffer.Dd April 14, 2014
32afe61c15SRodney W. Grimes.Dt FSTAB 5
333d45e180SRuslan Ermilov.Os
34afe61c15SRodney W. Grimes.Sh NAME
35afe61c15SRodney W. Grimes.Nm fstab
36afe61c15SRodney W. Grimes.Nd static information about the file systems
37afe61c15SRodney W. Grimes.Sh SYNOPSIS
3832eef9aeSRuslan Ermilov.In fstab.h
39afe61c15SRodney W. Grimes.Sh DESCRIPTION
40afe61c15SRodney W. GrimesThe file
414b66483fSRuslan Ermilov.Nm
42afe61c15SRodney W. Grimescontains descriptive information about the various file
43afe61c15SRodney W. Grimessystems.
444b66483fSRuslan Ermilov.Nm
45afe61c15SRodney W. Grimesis only read by programs, and not written;
46afe61c15SRodney W. Grimesit is the duty of the system administrator to properly create
47afe61c15SRodney W. Grimesand maintain this file.
48afe61c15SRodney W. GrimesEach file system is described on a separate line;
49afe61c15SRodney W. Grimesfields on each line are separated by tabs or spaces.
50afe61c15SRodney W. GrimesThe order of records in
514b66483fSRuslan Ermilov.Nm
52afe61c15SRodney W. Grimesis important because
53afe61c15SRodney W. Grimes.Xr fsck 8 ,
54afe61c15SRodney W. Grimes.Xr mount 8 ,
55afe61c15SRodney W. Grimesand
56afe61c15SRodney W. Grimes.Xr umount 8
57afe61c15SRodney W. Grimessequentially iterate through
584b66483fSRuslan Ermilov.Nm
59afe61c15SRodney W. Grimesdoing their thing.
60afe61c15SRodney W. Grimes.Pp
61afe61c15SRodney W. GrimesThe first field,
62afe61c15SRodney W. Grimes.Pq Fa fs_spec ,
63f2c05021SMike Pritcharddescribes the special device or
64afe61c15SRodney W. Grimesremote file system to be mounted.
65da087883SStefan FarfelederThe contents are decoded by the
66da087883SStefan Farfeleder.Xr strunvis 3
67da087883SStefan Farfelederfunction.
68da087883SStefan FarfelederThis allows using spaces or tabs in the device name which would be
69da087883SStefan Farfelederinterpreted as field separators otherwise.
70afe61c15SRodney W. Grimes.Pp
71afe61c15SRodney W. GrimesThe second field,
72afe61c15SRodney W. Grimes.Pq Fa fs_file ,
73afe61c15SRodney W. Grimesdescribes the mount point for the file system.
74df6a289eSXin LIFor swap partitions, this field should be specified as
75df6a289eSXin LI.Dq none .
76da087883SStefan FarfelederThe contents are decoded by the
77da087883SStefan Farfeleder.Xr strunvis 3
78da087883SStefan Farfelederfunction, as above.
79afe61c15SRodney W. Grimes.Pp
80afe61c15SRodney W. GrimesThe third field,
81afe61c15SRodney W. Grimes.Pq Fa fs_vfstype ,
82afe61c15SRodney W. Grimesdescribes the type of the file system.
83e9387c7dSWolfram SchneiderThe system can support various file system types.
84e9387c7dSWolfram SchneiderOnly the root, /usr, and /tmp file systems need be statically
85e9387c7dSWolfram Schneidercompiled into the kernel;
86e9387c7dSWolfram Schneidereverything else will be automatically loaded at mount
875203edcdSRuslan Ermilovtime.
8875184335SWarner Losh(Exception: the FFS cannot currently be demand-loaded.)
895203edcdSRuslan ErmilovSome people still prefer to statically
90e9387c7dSWolfram Schneidercompile other file systems as well.
91afe61c15SRodney W. Grimes.Pp
92afe61c15SRodney W. GrimesThe fourth field,
93afe61c15SRodney W. Grimes.Pq Fa fs_mntops ,
94afe61c15SRodney W. Grimesdescribes the mount options associated with the file system.
95afe61c15SRodney W. GrimesIt is formatted as a comma separated list of options.
96afe61c15SRodney W. GrimesIt contains at least the type of mount (see
97afe61c15SRodney W. Grimes.Fa fs_type
986e63b508SGiorgos Keramidasbelow) plus any additional options appropriate to the file system type.
995203edcdSRuslan ErmilovSee the options flag
10067ea20edSGuy Helmer.Pq Fl o
10167ea20edSGuy Helmerin the
10267ea20edSGuy Helmer.Xr mount 8
10367ea20edSGuy Helmerpage and the file system specific page, such as
10467ea20edSGuy Helmer.Xr mount_nfs 8 ,
10567ea20edSGuy Helmerfor additional options that may be specified.
1066e63b508SGiorgos KeramidasAll options that can be given to the file system specific mount commands
1076e63b508SGiorgos Keramidascan be used in
1086e63b508SGiorgos Keramidas.Nm
1096e63b508SGiorgos Keramidasas well.
1106e63b508SGiorgos KeramidasThey just need to be formatted a bit differently.
1116e63b508SGiorgos KeramidasThe arguments of the
1126e63b508SGiorgos Keramidas.Fl o
1136e63b508SGiorgos Keramidasoption can be used without the preceding
1146e63b508SGiorgos Keramidas.Fl o
1156e63b508SGiorgos Keramidasflag.
1166e63b508SGiorgos KeramidasOther options need both the file system specific flag and its argument,
1176e63b508SGiorgos Keramidasseparated by an equal sign.
1186e63b508SGiorgos KeramidasFor example, mounting an
1196e63b508SGiorgos Keramidas.Xr msdosfs 5
1206e63b508SGiorgos Keramidasfilesystem, the options
1216e63b508SGiorgos Keramidas.Bd -literal -offset indent
1226e63b508SGiorgos Keramidas-o sync -o noatime -m 644 -M 755 -u foo -g bar
1236e63b508SGiorgos Keramidas.Ed
1246e63b508SGiorgos Keramidas.Pp
1256e63b508SGiorgos Keramidasshould be written as
1266e63b508SGiorgos Keramidas.Bd -literal -offset indent
1276e63b508SGiorgos Keramidassync,noatime,-m=644,-M=755,-u=foo,-g=bar
1286e63b508SGiorgos Keramidas.Ed
1296e63b508SGiorgos Keramidas.Pp
1306e63b508SGiorgos Keramidasin the option field of
1316e63b508SGiorgos Keramidas.Nm .
132afe61c15SRodney W. Grimes.Pp
133df6a289eSXin LIIf the options
134df6a289eSXin LI.Dq userquota
135df6a289eSXin LIand/or
136df6a289eSXin LI.Dq groupquota
137df6a289eSXin LIare specified,
138afe61c15SRodney W. Grimesthe file system is automatically processed by the
139afe61c15SRodney W. Grimes.Xr quotacheck 8
140afe61c15SRodney W. Grimescommand, and user and/or group disk quotas are enabled with
141afe61c15SRodney W. Grimes.Xr quotaon 8 .
142afe61c15SRodney W. GrimesBy default,
143afe61c15SRodney W. Grimesfile system quotas are maintained in files named
144afe61c15SRodney W. Grimes.Pa quota.user
145afe61c15SRodney W. Grimesand
146afe61c15SRodney W. Grimes.Pa quota.group
147afe61c15SRodney W. Grimeswhich are located at the root of the associated file system.
148afe61c15SRodney W. GrimesThese defaults may be overridden by putting an equal sign
149afe61c15SRodney W. Grimesand an alternative absolute pathname following the quota option.
150afe61c15SRodney W. GrimesThus, if the user quota file for
151afe61c15SRodney W. Grimes.Pa /tmp
152afe61c15SRodney W. Grimesis stored in
153afe61c15SRodney W. Grimes.Pa /var/quotas/tmp.user ,
154afe61c15SRodney W. Grimesthis location can be specified as:
155afe61c15SRodney W. Grimes.Bd -literal -offset indent
156afe61c15SRodney W. Grimesuserquota=/var/quotas/tmp.user
157afe61c15SRodney W. Grimes.Ed
158afe61c15SRodney W. Grimes.Pp
159df6a289eSXin LIIf the option
160df6a289eSXin LI.Dq failok
161df6a289eSXin LIis specified,
162c7383075SXin LIthe system will ignore any error which happens during the mount of that filesystem,
163c7383075SXin LIwhich would otherwise cause the system to drop into single user mode.
164c7383075SXin LIThis option is implemented by the
165c7383075SXin LI.Xr mount 8
166c7383075SXin LIcommand and will not be passed to the kernel.
167c7383075SXin LI.Pp
168df6a289eSXin LIIf the option
169df6a289eSXin LI.Dq noauto
170df6a289eSXin LIis specified, the file system will not be automatically
171e70db05aSDavid Greenmanmounted at system startup.
1721c2941b2SSheldon HearnNote that, for network file systems
1731c2941b2SSheldon Hearnof third party types
1745203edcdSRuslan Ermilov(i.e., types supported by additional software
1751c2941b2SSheldon Hearnnot included in the base system)
1761c2941b2SSheldon Hearnto be automatically mounted at system startup,
1771c2941b2SSheldon Hearnthe
17863122b7fSRuslan Ermilov.Va extra_netfs_types
1791c2941b2SSheldon Hearn.Xr rc.conf 5
1801c2941b2SSheldon Hearnvariable must be used to extend the
181bb522200SSheldon Hearn.Xr rc 8
1821c2941b2SSheldon Hearnstartup script's list of network file system types.
183e70db05aSDavid Greenman.Pp
184268a55bcSHiroki SatoIf the option
185268a55bcSHiroki Sato.Dq late
186268a55bcSHiroki Satois specified, the file system will be automatically mounted
187268a55bcSHiroki Satoat a stage of system startup after remote mount points are mounted.
188268a55bcSHiroki SatoFor more detail about this option,
189268a55bcSHiroki Satosee the
190268a55bcSHiroki Sato.Xr mount 8
191268a55bcSHiroki Satomanual page.
192268a55bcSHiroki Sato.Pp
193afe61c15SRodney W. GrimesThe type of the mount is extracted from the
194afe61c15SRodney W. Grimes.Fa fs_mntops
195afe61c15SRodney W. Grimesfield and stored separately in the
196afe61c15SRodney W. Grimes.Fa fs_type
197afe61c15SRodney W. Grimesfield (it is not deleted from the
198afe61c15SRodney W. Grimes.Fa fs_mntops
199afe61c15SRodney W. Grimesfield).
200afe61c15SRodney W. GrimesIf
201afe61c15SRodney W. Grimes.Fa fs_type
202df6a289eSXin LIis
203df6a289eSXin LI.Dq rw
204df6a289eSXin LIor
205df6a289eSXin LI.Dq ro
206df6a289eSXin LIthen the file system whose name is given in the
207afe61c15SRodney W. Grimes.Fa fs_file
208afe61c15SRodney W. Grimesfield is normally mounted read-write or read-only on the
209afe61c15SRodney W. Grimesspecified special file.
210268a55bcSHiroki Sato.Pp
211afe61c15SRodney W. GrimesIf
212afe61c15SRodney W. Grimes.Fa fs_type
213df6a289eSXin LIis
214df6a289eSXin LI.Dq sw
215df6a289eSXin LIthen the special file is made available as a piece of swap
216afe61c15SRodney W. Grimesspace by the
217afe61c15SRodney W. Grimes.Xr swapon 8
218afe61c15SRodney W. Grimescommand at the end of the system reboot procedure.
219*a616b253SDoug MooreFor swap devices, the keyword
220*a616b253SDoug Moore.Dq trimonce
221*a616b253SDoug Mooretriggers the delivery of a
222*a616b253SDoug Moore.Dv BIO_DELETE
223*a616b253SDoug Moorecommand to the device to mark
224*a616b253SDoug Mooreall blocks as unused.
225268a55bcSHiroki SatoFor vnode-backed swap spaces,
226268a55bcSHiroki Sato.Dq file
227268a55bcSHiroki Satois supported in the
228268a55bcSHiroki Sato.Fa fs_mntops
229268a55bcSHiroki Satofield.
230268a55bcSHiroki SatoWhen
231268a55bcSHiroki Sato.Fa fs_spec
232268a55bcSHiroki Satois an
233268a55bcSHiroki Sato.Xr md 4
234268a55bcSHiroki Satodevice file
235268a55bcSHiroki Sato.Pq Do md Dc or Do md[0-9]* Dc
236268a55bcSHiroki Satoand
237268a55bcSHiroki Sato.Dq file
238268a55bcSHiroki Satois specified in
239268a55bcSHiroki Sato.Fa fs_mntopts ,
240268a55bcSHiroki Satoan
241268a55bcSHiroki Sato.Xr md 4
242268a55bcSHiroki Satodevice is created with the specified file used as backing store,
243268a55bcSHiroki Satoand then the new device is used as swap space.
244a78deafaSHiroki SatoSwap entries on
245a78deafaSHiroki Sato.Pa .eli
246a78deafaSHiroki Satodevices will cause automatic creation of encrypted devices.
247a78deafaSHiroki SatoThe
248a78deafaSHiroki Sato.Dq ealgo ,
249a78deafaSHiroki Sato.Dq aalgo ,
250cd2fccbbSChristian Brueffer.Dq keylen ,
251445bda3fSPawel Jakub Dawidek.Dq notrim ,
252a78deafaSHiroki Satoand
253a78deafaSHiroki Sato.Dq sectorsize
254a78deafaSHiroki Satooptions may be passed to control those
255a78deafaSHiroki Sato.Xr geli 8
256a78deafaSHiroki Satoparameters.
257afe61c15SRodney W. GrimesThe fields other than
258afe61c15SRodney W. Grimes.Fa fs_spec
259afe61c15SRodney W. Grimesand
260afe61c15SRodney W. Grimes.Fa fs_type
261afe61c15SRodney W. Grimesare unused.
262afe61c15SRodney W. GrimesIf
263afe61c15SRodney W. Grimes.Fa fs_type
264df6a289eSXin LIis specified as
265df6a289eSXin LI.Dq xx
266df6a289eSXin LIthe entry is ignored.
267afe61c15SRodney W. GrimesThis is useful to show disk partitions which are currently unused.
268afe61c15SRodney W. Grimes.Pp
269afe61c15SRodney W. GrimesThe fifth field,
270afe61c15SRodney W. Grimes.Pq Fa fs_freq ,
271afe61c15SRodney W. Grimesis used for these file systems by the
272afe61c15SRodney W. Grimes.Xr dump 8
273afe61c15SRodney W. Grimescommand to determine which file systems need to be dumped.
274afe61c15SRodney W. GrimesIf the fifth field is not present, a value of zero is returned and
275edf0e5b3SMike Pritchard.Nm dump
276afe61c15SRodney W. Grimeswill assume that the file system does not need to be dumped.
277e3fbf603SWarner LoshIf the fifth field is greater than 0, then it specifies the number of days
278e3fbf603SWarner Loshbetween dumps for this file system.
279afe61c15SRodney W. Grimes.Pp
280afe61c15SRodney W. GrimesThe sixth field,
281afe61c15SRodney W. Grimes.Pq Fa fs_passno ,
282afe61c15SRodney W. Grimesis used by the
283afe61c15SRodney W. Grimes.Xr fsck 8
284c980e8b5SMike Pritchardand
285c980e8b5SMike Pritchard.Xr quotacheck 8
2865338828aSMike Pritchardprograms to determine the order in which file system and quota
2875338828aSMike Pritchardchecks are done at reboot time.
2885338828aSMike PritchardThe
2895338828aSMike Pritchard.Fa fs_passno
2905338828aSMike Pritchardfield can be any value between 0 and
2915338828aSMike Pritchard.Ql INT_MAX Ns -1 .
2925338828aSMike Pritchard.Pp
293afe61c15SRodney W. GrimesThe root file system should be specified with a
294afe61c15SRodney W. Grimes.Fa fs_passno
295afe61c15SRodney W. Grimesof 1, and other file systems should have a
296afe61c15SRodney W. Grimes.Fa fs_passno
2975338828aSMike Pritchardof 2 or greater.
2985338828aSMike PritchardA file system with a
2995338828aSMike Pritchard.Fa fs_passno
3005338828aSMike Pritchardvalue of 1 is always checked sequentially and be completed before
3015338828aSMike Pritchardanother file system is processed, and it will be processed before
3025338828aSMike Pritchardall file systems with a larger
3035338828aSMike Pritchard.Fa fs_passno .
3045338828aSMike Pritchard.Pp
305203f7a28SMike PritchardFor any given value of
306203f7a28SMike Pritchard.Fa fs_passno ,
307203f7a28SMike Pritchardfile systems within a drive will be checked sequentially,
308afe61c15SRodney W. Grimesbut file systems on different drives will be checked at the
309afe61c15SRodney W. Grimessame time to utilize parallelism available in the hardware.
310203f7a28SMike PritchardOnce all file system checks are complete for the current
311203f7a28SMike Pritchard.Fa fs_passno ,
312203f7a28SMike Pritchardthe same process will start over for the next
313203f7a28SMike Pritchard.Fa fs_passno .
314203f7a28SMike Pritchard.Pp
3154043c58eSTim VanderhoekIf the sixth field is not present or is zero,
316afe61c15SRodney W. Grimesa value of zero is returned and
317edf0e5b3SMike Pritchard.Xr fsck 8
318c980e8b5SMike Pritchardand
319c980e8b5SMike Pritchard.Xr quotacheck 8
320afe61c15SRodney W. Grimeswill assume that the file system does not need to be checked.
3215338828aSMike Pritchard.Pp
3225338828aSMike PritchardThe
3235338828aSMike Pritchard.Fa fs_passno
3245338828aSMike Pritchardfield can be used to implement finer control when
3255338828aSMike Pritchardthe system utilities may determine that the file system resides
3265338828aSMike Pritchardon a different physical device, when it actually does not, as with a
3275338828aSMike Pritchard.Xr ccd 4
3285338828aSMike Pritcharddevice.
329203f7a28SMike PritchardAll file systems with a lower
330203f7a28SMike Pritchard.Fa fs_passno
331203f7a28SMike Pritchardvalue will be completed before starting on file systems with a
332203f7a28SMike Pritchardhigher
333203f7a28SMike Pritchard.Fa fs_passno
334203f7a28SMike Pritchardvalue.
335203f7a28SMike PritchardE.g. all file systems with a
336203f7a28SMike Pritchard.Fa fs_passno
337203f7a28SMike Pritchardof 2 will be completed before any file systems with a
338203f7a28SMike Pritchard.Fa fs_passno
339203f7a28SMike Pritchardof 3 or greater are started.
340203f7a28SMike PritchardGaps are allowed between the different
341203f7a28SMike Pritchard.Fa fs_passno
342203f7a28SMike Pritchardvalues.
343203f7a28SMike PritchardE.g. file systems listed in
344203f7a28SMike Pritchard.Pa /etc/fstab
345203f7a28SMike Pritchardmay have
346203f7a28SMike Pritchard.Fa fs_passno
347203f7a28SMike Pritchardvalues such as 0, 1, 2, 15, 100, 200, 300, and may appear in any order
348203f7a28SMike Pritchardwithin
349203f7a28SMike Pritchard.Pa /etc/fstab .
350afe61c15SRodney W. Grimes.Bd -literal
351ad2c737eSMike Pritchard#define	FSTAB_RW	"rw"	/* read/write device */
352ad2c737eSMike Pritchard#define	FSTAB_RQ	"rq"	/* read/write with quotas */
353afe61c15SRodney W. Grimes#define	FSTAB_RO	"ro"	/* read-only device */
354afe61c15SRodney W. Grimes#define	FSTAB_SW	"sw"	/* swap device */
355afe61c15SRodney W. Grimes#define	FSTAB_XX	"xx"	/* ignore totally */
356afe61c15SRodney W. Grimes
357afe61c15SRodney W. Grimesstruct fstab {
358afe61c15SRodney W. Grimes	char	*fs_spec;	/* block special device name */
359afe61c15SRodney W. Grimes	char	*fs_file;	/* file system path prefix */
360ad2c737eSMike Pritchard	char	*fs_vfstype;	/* File system type, ufs, nfs */
361ad2c737eSMike Pritchard	char	*fs_mntops;	/* Mount options ala -o */
362ad2c737eSMike Pritchard	char	*fs_type;	/* FSTAB_* from fs_mntops */
363afe61c15SRodney W. Grimes	int	fs_freq;	/* dump frequency, in days */
364ad2c737eSMike Pritchard	int	fs_passno;	/* pass number on parallel fsck */
365afe61c15SRodney W. Grimes};
366afe61c15SRodney W. Grimes.Ed
367afe61c15SRodney W. Grimes.Pp
368afe61c15SRodney W. GrimesThe proper way to read records from
369afe61c15SRodney W. Grimes.Pa fstab
370afe61c15SRodney W. Grimesis to use the routines
371afe61c15SRodney W. Grimes.Xr getfsent 3 ,
372afe61c15SRodney W. Grimes.Xr getfsspec 3 ,
373afe61c15SRodney W. Grimes.Xr getfstype 3 ,
374afe61c15SRodney W. Grimesand
375afe61c15SRodney W. Grimes.Xr getfsfile 3 .
376afe61c15SRodney W. Grimes.Sh FILES
377afe61c15SRodney W. Grimes.Bl -tag -width /etc/fstab -compact
378afe61c15SRodney W. Grimes.It Pa /etc/fstab
379afe61c15SRodney W. GrimesThe file
3804b66483fSRuslan Ermilov.Nm
381afe61c15SRodney W. Grimesresides in
382afe61c15SRodney W. Grimes.Pa /etc .
383afe61c15SRodney W. Grimes.El
3849d52c5eaSHiroki Sato.Sh EXAMPLES
3859d52c5eaSHiroki Sato.Bd -literal
3869d52c5eaSHiroki Sato# Device	Mountpoint	FStype	Options		Dump	Pass#
3879d52c5eaSHiroki Sato#
3889d52c5eaSHiroki Sato# UFS file system.
3899d52c5eaSHiroki Sato/dev/da0p2	/		ufs	rw		1	1
3909d52c5eaSHiroki Sato#
3919d52c5eaSHiroki Sato# Swap space on a block device.
3929d52c5eaSHiroki Sato/dev/da0p1	none		swap	sw		0	0
3939d52c5eaSHiroki Sato#
3949d52c5eaSHiroki Sato# Swap space using a block device with GBDE/GELI encyption.
3959d52c5eaSHiroki Sato# aalgo, ealgo, keylen, sectorsize options are available
3969d52c5eaSHiroki Sato# for .eli devices.
3979d52c5eaSHiroki Sato/dev/da1p1.bde	none		swap	sw		0	0
3989d52c5eaSHiroki Sato/dev/da1p2.eli	none		swap	sw		0	0
3999d52c5eaSHiroki Sato#
4009d52c5eaSHiroki Sato# tmpfs.
4019d52c5eaSHiroki Satotmpfs		/tmp		tmpfs	rw,size=1g,mode=1777	0 0
4029d52c5eaSHiroki Sato#
4039d52c5eaSHiroki Sato# UFS file system on a swap-backed md(4).  /dev/md10 is
4049d52c5eaSHiroki Sato# automatically created.  If it is "md", a unit number
4059d52c5eaSHiroki Sato# will be automatically selected.
4069d52c5eaSHiroki Satomd10		/scratch	mfs	rw,-s1g		0	0
4079d52c5eaSHiroki Sato#
4089d52c5eaSHiroki Sato# Swap space on a vnode-backed md(4).
4099d52c5eaSHiroki Satomd11		none		swap	sw,file=/swapfile	0 0
4109d52c5eaSHiroki Sato#
4119d52c5eaSHiroki Sato# CDROM.  "noauto" option is typically used because the
4129d52c5eaSHiroki Sato# media is removable.
4139d52c5eaSHiroki Sato/dev/cd0	/cdrom		cd9660	ro,noauto	0	0
4149d52c5eaSHiroki Sato#
4159d52c5eaSHiroki Sato# NFS-exported file system.  "serv" is an NFS server name
4169d52c5eaSHiroki Sato# or IP address.
4179d52c5eaSHiroki Satoserv:/export	/nfs		nfs	rw,noinet6	0	0
4189d52c5eaSHiroki Sato.Ed
419afe61c15SRodney W. Grimes.Sh SEE ALSO
420e9387c7dSWolfram Schneider.Xr getfsent 3 ,
421e9387c7dSWolfram Schneider.Xr getvfsbyname 3 ,
42279ce8a64SJoel Dahl.Xr strunvis 3 ,
4235338828aSMike Pritchard.Xr ccd 4 ,
424e9387c7dSWolfram Schneider.Xr dump 8 ,
425e9387c7dSWolfram Schneider.Xr fsck 8 ,
426a78deafaSHiroki Sato.Xr geli 8 ,
427e9387c7dSWolfram Schneider.Xr mount 8 ,
428e9387c7dSWolfram Schneider.Xr quotacheck 8 ,
429e9387c7dSWolfram Schneider.Xr quotaon 8 ,
430e9387c7dSWolfram Schneider.Xr swapon 8 ,
4316fe89339SBen Smithurst.Xr umount 8
432afe61c15SRodney W. Grimes.Sh HISTORY
433afe61c15SRodney W. GrimesThe
434afe61c15SRodney W. Grimes.Nm
435afe61c15SRodney W. Grimesfile format appeared in
436afe61c15SRodney W. Grimes.Bx 4.0 .
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