xref: /dragonfly/usr.sbin/makefs/makefs.8 (revision a4da4a90)
1.\"	$NetBSD: makefs.8,v 1.33 2011/05/22 21:51:39 christos Exp $
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3.\" Copyright (c) 2001-2003 Wasabi Systems, Inc.
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6.\" Written by Luke Mewburn for Wasabi Systems, Inc.
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20.\" 4. The name of Wasabi Systems, Inc. may not be used to endorse
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36.\" $FreeBSD: head/usr.sbin/makefs/makefs.8 331843 2018-03-31 15:04:41Z benno $
37.\"
38.Dd February 10, 2019
39.Dt MAKEFS 8
40.Os
41.Sh NAME
42.Nm makefs
43.Nd create a file system image from a directory tree or a mtree manifest
44.Sh SYNOPSIS
45.Nm
46.Op Fl DxZ
47.Op Fl B Ar endian
48.Op Fl b Ar free-blocks
49.Op Fl d Ar debug-mask
50.Op Fl F Ar mtree-specfile
51.Op Fl f Ar free-files
52.Op Fl M Ar minimum-size
53.Op Fl m Ar maximum-size
54.Op Fl N Ar userdb-dir
55.Op Fl O Ar offset
56.Op Fl o Ar fs-options
57.Op Fl R Ar roundup-size
58.Op Fl S Ar sector-size
59.Op Fl s Ar image-size
60.Op Fl T Ar timestamp
61.Op Fl t Ar fs-type
62.Ar image-file
63.Ar directory | manifest
64.Op Ar extra-directory ...
65.Sh DESCRIPTION
66The utility
67.Nm
68creates a file system image into
69.Ar image-file
70from the directory tree
71.Ar directory
72or from the mtree manifest
73.Ar manifest .
74If any optional directory trees are passed in the
75.Ar extra-directory
76arguments, then the directory tree of each argument will be merged
77into the
78.Ar directory
79or
80.Ar manifest
81first before creating
82.Ar image-file .
83No special devices or privileges are required to perform this task.
84.Pp
85The options are as follows:
86.Bl -tag -width flag
87.It Fl B Ar endian
88Set the byte order of the image to
89.Ar endian .
90Valid byte orders are
91.Ql 4321 ,
92.Ql big ,
93or
94.Ql be
95for big endian, and
96.Ql 1234 ,
97.Ql little ,
98or
99.Ql le
100for little endian.
101Some file systems may have a fixed byte order; in those cases this
102argument will be ignored.
103.It Fl b Ar free-blocks
104Ensure that a minimum of
105.Ar free-blocks
106free blocks exist in the image.
107An optional
108.Ql %
109suffix may be provided to indicate that
110.Ar free-blocks
111indicates a percentage of the calculated image size.
112.It Fl D
113Treat duplicate paths in an mtree manifest as warnings not error.
114.It Fl d Ar debug-mask
115Enable various levels of debugging, depending upon which bits are
116set in
117.Ar debug-mask .
118XXX: document these
119.It Fl F Ar mtree-specfile
120.Em This is almost certainly not the option you are looking for.
121To create an image from a list of files in an mtree format manifest,
122specify it as the last argument on the commandline, not as a the
123argument to
124.Fl F .
125.Pp
126Use
127.Ar mtree-specfile
128as an
129.Xr mtree 8
130.Sq specfile
131specification.
132This option has no effect when the image is created from a mtree manifest
133rather than a directory.
134.Pp
135If a specfile entry exists in the underlying file system, its
136permissions and modification time will be used unless specifically
137overridden by the specfile.
138An error will be raised if the type of entry in the specfile
139conflicts with that of an existing entry.
140.Pp
141In the opposite case (where a specfile entry does not have an entry
142in the underlying file system) the following occurs:
143If the specfile entry is marked
144.Sy optional ,
145the specfile entry is ignored.
146Otherwise, the entry will be created in the image, and it is
147necessary to specify at least the following parameters in the
148specfile:
149.Sy type ,
150.Sy mode ,
151.Sy gname ,
152or
153.Sy gid ,
154and
155.Sy uname
156or
157.Sy uid ,
158and
159.Sy link
160(in the case of symbolic links).
161If
162.Sy time
163isn't provided, the current time will be used.
164If
165.Sy flags
166isn't provided, the current file flags will be used.
167Missing regular file entries will be created as zero-length files.
168.It Fl f Ar free-files
169Ensure that a minimum of
170.Ar free-files
171free files (inodes) exist in the image.
172An optional
173.Ql %
174suffix may be provided to indicate that
175.Ar free-files
176indicates a percentage of the calculated image size.
177.It Fl M Ar minimum-size
178Set the minimum size of the file system image to
179.Ar minimum-size .
180.It Fl m Ar maximum-size
181Set the maximum size of the file system image to
182.Ar maximum-size .
183An error will be raised if the target file system needs to be larger
184than this to accommodate the provided directory tree.
185.It Fl N Ar userdb-dir
186Use the user database text file
187.Pa master.passwd
188and group database text file
189.Pa group
190from
191.Ar userdb-dir ,
192rather than using the results from the system's
193.Xr getpwnam 3
194and
195.Xr getgrnam 3
196(and related) library calls.
197.It Fl O Ar offset
198Instead of creating the filesystem at the beginning of the file, start
199at offset.
200Valid only for
201.Sy ffs .
202.It Fl o Ar fs-options
203Set file system specific options.
204.Ar fs-options
205is a comma separated list of options.
206Valid file system specific options are detailed below.
207.It Fl p
208Deprecated.
209See the
210.Fl Z
211flag.
212.It Fl R Ar roundup-size
213Round the image up to
214.Ar roundup-size .
215.Ar roundup-size
216should be a multiple of the file system block size.
217This option only applies to the
218.Sy ffs
219file system type.
220.It Fl S Ar sector-size
221Set the file system sector size to
222.Ar sector-size .
223.\" XXX: next line also true for cd9660?
224Defaults to 512.
225.It Fl s Ar image-size
226Set the size of the file system image to
227.Ar image-size .
228.It Fl T Ar timestamp
229Specify a timestamp to be set for all filesystem files and directories
230created so that repeatable builds are possible.
231The
232.Ar timestamp
233can be a
234.Pa pathname ,
235where the timestamps are derived from that file, or an integer
236value interpreted as the number of seconds from the Epoch.
237Note that timestamps specified in an
238.Xr mtree 5
239spec file, override the default timestamp.
240.It Fl t Ar fs-type
241Create an
242.Ar fs-type
243file system image.
244The following file system types are supported:
245.Bl -tag -width cd9660 -offset indent
246.It Sy ffs
247BSD fast file system (default).
248.It Sy cd9660
249ISO 9660 file system.
250.El
251.It Fl x
252Exclude file system nodes not explicitly listed in the specfile.
253.It Fl Z
254Create a sparse file for
255.Sy ffs .
256This is useful for virtual machine images.
257.El
258.Pp
259Where sizes are specified, a decimal number of bytes is expected.
260Two or more numbers may be separated by an
261.Dq x
262to indicate a product.
263Each number may have one of the following optional suffixes:
264.Bl -tag -width 3n -offset indent -compact
265.It b
266Block; multiply by 512
267.It k
268Kibi; multiply by 1024 (1 KiB)
269.It m
270Mebi; multiply by 1048576 (1 MiB)
271.It g
272Gibi; multiply by 1073741824 (1 GiB)
273.It t
274Tebi; multiply by 1099511627776 (1 TiB)
275.It w
276Word; multiply by the number of bytes in an integer
277.El
278.\"
279.\"
280.Ss FFS-specific options
281.Sy ffs
282images have ffs-specific optional parameters that may be provided.
283Each of the options consists of a keyword, an equal sign
284.Pq Ql = ,
285and a value.
286The following keywords are supported:
287.Pp
288.Bl -tag -width optimization -offset indent -compact
289.It Sy avgfilesize
290Expected average file size.
291.It Sy avgfpdir
292Expected number of files per directory.
293.It Sy bsize
294Block size.
295.It Sy density
296Bytes per inode.
297.It Sy fsize
298Fragment size.
299.It Sy label
300Label name of the image.
301.It Sy maxbpg
302Maximum blocks per file in a cylinder group.
303.It Sy minfree
304Minimum % free.
305.It Sy optimization
306Optimization preference; one of
307.Ql space
308or
309.Ql time .
310.\".It Sy extent
311.\"Maximum extent size.
312.It Sy maxbpcg
313Maximum total number of blocks in a cylinder group.
314.It Sy version
315UFS version.
3161 for FFS (default and the only supported value).
317.\", 2 for UFS2.
318.It Sy softupdates
3190 for disable (default), 1 for enable
320.El
321.Ss CD9660-specific options
322.Sy cd9660
323images have ISO9660-specific optional parameters that may be
324provided.
325The arguments consist of a keyword and, optionally, an equal sign
326.Pq Ql = ,
327and a value.
328The following keywords are supported:
329.Pp
330.Bl -tag -width omit-trailing-period -offset indent -compact
331.It Sy allow-deep-trees
332Allow the directory structure to exceed the maximum specified in
333the spec.
334.It Sy allow-illegal-chars
335Allow illegal characters in filenames. This option is not implemented.
336.It Sy allow-lowercase
337Allow lowercase characters in filenames. This option is not implemented.
338.It Sy allow-max-name
339Allow 37 instead of 33 characters for filenames by omitting the
340version id.
341.It Sy allow-multidot
342Allow multiple dots in a filename.
343.It Sy applicationid
344Application ID of the image.
345.It Sy archimedes
346Use the
347.Ql ARCHIMEDES
348extension to encode
349.Tn RISC OS
350metadata.
351.It Sy bootimagedir
352Boot image directory. This option is not implemented.
353.It Sy chrp-boot
354Write an MBR partition table to the image to allow older CHRP hardware to
355boot.
356.It Sy boot-load-segment
357Set load segment for the boot image.
358.It Sy bootimage
359Filename of a boot image in the format
360.Dq sysid;filename ,
361where
362.Dq sysid
363is one of
364.Ql i386 ,
365.Ql mac68k ,
366.Ql macppc ,
367or
368.Ql powerpc .
369.It Sy generic-bootimage
370Load a generic boot image into the first 32K of the cd9660 image.
371.It Sy hard-disk-boot
372Boot image is a hard disk image.
373.It Sy isolevel
374An integer representing the ISO 9660 interchange level where
375.Dq level
376is either
377.Ql 1
378or
379.Ql 2 .
380.Dq level
381.Ql 3
382is not implemented.
383.It Sy keep-bad-images
384Do not discard images whose write was aborted due to an error.
385For debugging purposes.
386.It Sy label
387Label name of the image.
388.It Sy no-boot
389Boot image is not bootable.
390.It Sy no-emul-boot
391Boot image is a
392.Dq no emulation
393ElTorito image.
394.It Sy no-trailing-padding
395Do not pad the image (apparently Linux needs the padding).
396.It Sy omit-trailing-period
397Omit trailing periods in filenames.
398.It Sy platformid
399Set platform ID of section header entry of the boot image.
400.It Sy preparer
401Preparer ID of the image.
402.It Sy publisher
403Publisher ID of the image.
404.It Sy rockridge
405Use RockRidge extensions (for longer filenames, etc.).
406.It Sy verbose
407Turns on verbose output.
408.It Sy volumeid
409Volume set identifier of the image.
410.El
411.Sh SEE ALSO
412.Xr mtree 5 ,
413.Xr mtree 8 ,
414.Xr newfs 8
415.Sh HISTORY
416The
417.Nm
418utility appeared in
419.Nx 1.6 .
420.Sh AUTHORS
421.An Luke Mewburn
422.Aq Mt lukem@NetBSD.org
423(original program),
424.An Daniel Watt ,
425.An Walter Deignan ,
426.An Ryan Gabrys ,
427.An Alan Perez-Rathke ,
428.An Ram Vedam
429(cd9660 support)
430