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1<?xml version="1.0" encoding="UTF-8"?>
2<!--
3 manpage for RTIsoMaker/VISO
4
5 Copyright (C) 2006-2020 Oracle Corporation
6
7 This file is part of VirtualBox Open Source Edition (OSE), as
8 available from http://www.virtualbox.org. This file is free software;
9 you can redistribute it and/or modify it under the terms of the GNU
10 General Public License (GPL) as published by the Free Software
11 Foundation, in version 2 as it comes in the "COPYING" file of the
12 VirtualBox OSE distribution. VirtualBox OSE is distributed in the
13 hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
14
15 The contents of this file may alternatively be used under the terms
16 of the Common Development and Distribution License Version 1.0
17 (CDDL) only, as it comes in the "COPYING.CDDL" file of the
18 VirtualBox OSE distribution, in which case the provisions of the
19 CDDL are applicable instead of those of the GPL.
20
21 You may elect to license modified versions of this file under the
22 terms and conditions of either the GPL or the CDDL or both.
23 -->
24<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
25<refentry id="viso" lang="en">
26
27 <refentryinfo>
28 <pubdate>$Date: 2020-02-04 11:13:09 +0000 (Tue, 04 Feb 2020) $</pubdate>
29 <title>VISO file format / RTIsoMaker</title>
30 </refentryinfo>
31
32 <refmeta>
33 <refentrytitle>viso</refentrytitle>
34 <manvolnum>8</manvolnum>
35 </refmeta>
36
37 <refnamediv>
38 <!--<refname>VISO</refname>-->
39 <refname>viso</refname>
40 <refpurpose>ISO image maker</refpurpose>
41 <refclass>IPRT</refclass>
42 </refnamediv>
43
44 <refsynopsisdiv>
45 <cmdsynopsis id="synopsis-viso"> <!-- The 'id' is mandatory and must start with 'synopsis-'. -->
46 <command>RTIsoMaker</command>
47 <arg><replaceable>options</replaceable></arg>
48 <arg>@<replaceable>commands.rsp</replaceable></arg>
49 <arg choice="req" rep="repeat"><replaceable>filespec</replaceable></arg>
50 </cmdsynopsis>
51 </refsynopsisdiv>
52
53 <refsect1>
54 <title>Description</title>
55 <para>Construct a virtual ISO 9660 / Joliet / UDF / HFS hybrid image and either write it to a
56 file (RTIsoMaker) or serve it as a virtual image (VISO).</para>
57
58 <refsect2 id="viso-viso">
59 <title>VISO file format</title>
60 <para>A VISO file is a virtual ISO image, i.e. constructed in memory from a bunch of files on
61 the host. A VISO is just the recipe describing how to go about this using a syntax vaguely
62 similar to mkisofs and genisoimage.</para>
63
64 <para>One requirement is that the VISO file must start with one of the
65 <option>--iprt-iso-maker-file-marker</option> options. Which of the options you use will
66 dictate the quoting and escaping rules used when reading the file. The option takes the
67 image UUID as an argument.</para>
68
69 <para>The VISO files are treated as UTF-8 and must not contain any byte order marker (BOM).
70 There is currently no way to comment out lines in a VISO file.</para>
71
72 </refsect2>
73
74 <refsect2 id="viso-filespecs">
75 <title>File specifications and --name-setup</title>
76 <para>All non-options that does not start with '@' are taken to indicate a file, directory,
77 or similar that is should be added to the ISO image. Directories are added recursively and
78 content is subject to filtering options.</para>
79
80 <para>Since there can be up to six different namespaces on an ISO, it is handy to be able to
81 control the names used in each and be able to exclude an object from one or more namespaces.
82 The <option>--name-setup</option> option specifies the file specification format to use
83 forthwith.</para>
84
85 <para>The default setup is:</para>
86 <!-- indent this: -->
87 <para><computeroutput> --name-setup iso+joliet+udf+hfs</computeroutput></para>
88
89 <para>Which means you specify one on-ISO name for all namespaces followed by '=' and the
90 source file system name. Only specifying the source file system will add the
91 file/dir/whatever to the root of the ISO image.</para>
92
93 <para>Lets look at the following two examples:</para>
94
95 <!-- indent these -->
96 <para><computeroutput> /docs/readme.txt=/home/user/Documents/product-x-readme.txt</computeroutput></para>
97 <para><computeroutput> /home/user/Documents/product-x-readme.txt</computeroutput></para>
98
99 <para>In the first case the file <computeroutput>'/home/user/Documents/product-x-readme.txt'</computeroutput>
100 is added to the ISO image as <computeroutput>'/docs/readme.txt'</computeroutput> in all
101 enabled namespaces. In the primary ISO 9660 namespace, the filename will by default be
102 converted to upper case because it's required by the spec.</para>
103
104 <para>In the second case the file is added to the root under the name
105 <computeroutput>'product-x-readme.txt'</computeroutput> in all namespaces. Though, in the
106 primary ISO 9660 namespace the name will be transformed to apply with the current ISO level,
107 probably uppercased, possibly truncated too. </para>
108
109 <para>Given <option>--name-setup iso,joliet,udf</option> you can specify the name individually
110 for each of the three namespace, if you like. If you omit any, they will use last name given.
111 Any names left blank (<computeroutput>==</computeroutput>) will be considered omitted.</para>
112
113 <para>A different name in each namespace:</para>
114 <para><computeroutput> /ISO.TXT=/Joliet.TxT=/UDF.txt=/tmp/iso/real.txt</computeroutput></para>
115 <para>Specific name in the ISO 9660 namespace, same in the rest:</para>
116 <para><computeroutput> /ISO.TXT=/OtherNamespaces.TxT=/tmp/iso/real.txt</computeroutput></para>
117 <para>Omit the file from the ISO 9660 namespace:</para>
118 <para><computeroutput> =/OtherNamespaces.TxT=/tmp/iso/real.txt</computeroutput></para>
119 <para>Omit the file from the joliet namespace:</para>
120 <para><computeroutput> /ISO.TXT==/UDF.TxT=/tmp/iso/real.txt</computeroutput></para>
121 <para>Use the same filename as the source everywhere:</para>
122 <para><computeroutput> /tmp/iso/real.txt</computeroutput></para>
123
124
125 <para>Using for instance <option>--name-setup udf</option> you can add a files/dirs/whatever
126 to select namespace(s) without the more complicated empty name syntax above.</para>
127
128 <para>When adding directories, you can only control the naming and omitting of the directory
129 itself, not any recursively added files and directories below it.</para>
130
131 </refsect2>
132 </refsect1>
133
134 <refsect1 id="viso-options">
135 <title>Options</title>
136
137 <refsect2 id="viso-options-general">
138 <title>General</title>
139
140 <variablelist>
141 <varlistentry>
142 <term><option>-o <replaceable>output-file</replaceable></option></term>
143 <term><option>--output=<replaceable>output-file</replaceable></option></term>
144 <listitem><para>The output filename. This option is not supported in VISO mode.</para></listitem>
145 </varlistentry>
146
147 <varlistentry>
148 <term><option>--name-setup <replaceable>spec</replaceable></option></term>
149 <listitem><para>Configures active namespaces and how file specifications are to be
150 interpreted. The specification is a comma separated list. Each element in the list is
151 a sub-list separated by space, <computeroutput>'+'</computeroutput> or
152 <computeroutput>'|'</computeroutput> giving the namespaces that elements controls.
153 Namespaces are divied into two major and minor ones, you cannot specifying a minor
154 before the major it belongs to.</para>
155 <para>Major namespaces and aliases in parentheses:</para>
156 <itemizedlist spacing="compact">
157 <listitem><para>iso (primary, iso9660, iso-9660, primary-iso, iso-primary)</para></listitem>
158 <listitem><para>joliet</para></listitem>
159 <listitem><para>udf</para></listitem>
160 <listitem><para>hfs (hfs-plus)</para></listitem>
161 </itemizedlist>
162 <para>Minor namespaces:</para>
163 <itemizedlist spacing="compact">
164 <listitem><para>rock: rock ridge on previous major namespace (iso / joliet)</para></listitem>
165 <listitem><para>iso-rock: rock ridge extensions on primary ISO 9660 namespace</para></listitem>
166 <listitem><para>joliet-rock: rock ridge on joliet namespace (just for fun)</para></listitem>
167 <listitem><para>trans-tbl: translation table file on previous major namespace</para></listitem>
168 <listitem><para>iso-trans-tbl</para></listitem>
169 <listitem><para>joliet-trans-tbl</para></listitem>
170 <listitem><para>udf-trans-tbl</para></listitem>
171 <listitem><para>hfs-trans-tbl</para></listitem>
172 </itemizedlist>
173 </listitem>
174 </varlistentry>
175
176 <varlistentry>
177 <term><option>--push-iso=<replaceable>iso-file</replaceable></option></term>
178 <term><option>--push-iso-no-joliet=<replaceable>iso-file</replaceable></option></term>
179 <term><option>--push-iso-no-rock-<replaceable>iso-file</replaceable></option></term>
180 <term><option>--push-iso-no-rock-no-joliet=<replaceable>iso-file</replaceable></option></term>
181 <listitem><para>Open the specified ISO file and use it as source file system until the
182 corresponding <option>--pop</option> options is encountered. The variations are for
183 selecting which namespace on the ISO to (not) access. These options are handy for copying
184 files/directories/stuff from an ISO without having to extract them first or using the
185 <computeroutput>:iprtvfs:</computeroutput> syntax.</para>
186 </listitem>
187 </varlistentry>
188
189 <varlistentry>
190 <term><option>--pop</option></term>
191 <listitem><para>Pops a <option>--push-iso</option> of the source file system stack.</para></listitem>
192 </varlistentry>
193
194 <varlistentry>
195 <term><option>--import-iso=<replaceable>iso-file</replaceable></option></term>
196 <listitem><para>Imports everything on the given ISO file, including boot configuration and
197 system area (first 16 sectors) content. You can use <option>--name-setup</option> to omit
198 namespaces.</para></listitem>
199 </varlistentry>
200
201 </variablelist>
202 </refsect2>
203
204 <refsect2 id="viso-options-namespaces">
205 <title>Namespaces</title>
206 <variablelist>
207
208 <varlistentry>
209 <term><option>--iso-level=<replaceable>0|1|2|3</replaceable></option></term> <!-- FIXME: imperfect markup -->
210 <listitem>
211 <para>Sets the ISO level:</para>
212 <itemizedlist spacing="compact">
213 <listitem><para>0: Disable primary ISO namespace.</para></listitem>
214 <listitem><para>1: ISO level 1: Filenames 8.3 format and limited to 4GB - 1.</para></listitem>
215 <listitem><para>2: ISO level 2: 31 char long names and limited to 4GB - 1.</para></listitem>
216 <listitem><para>3: ISO level 3: 31 char long names and support for >=4GB files. (default)</para></listitem>
217 <listitem><para>4: Fictive level used by other tools. Not yet implemented.</para></listitem>
218 </itemizedlist>
219 </listitem>
220 </varlistentry>
221
222 <varlistentry>
223 <term><option>--rock-ridge</option></term>
224 <term><option>--limited-rock-ridge</option></term>
225 <term><option>--no-rock-ridge</option></term>
226 <listitem><para>Enables or disables rock ridge support for the primary ISO 9660 namespace.
227 The <option>--limited-rock-ridge</option> option omits a couple of bits in the root
228 directory that would make Linux pick rock ridge over joliet.</para>
229 <para>Default: <option>--limited-rock-ridge</option></para>
230 </listitem>
231 </varlistentry>
232
233 <varlistentry>
234 <term><option>-J</option></term>
235 <term><option>--joliet</option></term>
236 <term><option>--no-joliet</option></term>
237 <listitem><para>Enables or disable the joliet namespace. This option must precede any file
238 specifications.</para>
239 <para>Default: <option>--joliet</option></para>
240 </listitem>
241 </varlistentry>
242
243 <varlistentry>
244 <term><option>--joliet-ucs-level=<replaceable>1|2|3</replaceable></option></term> <!-- FIXME: imperfect markup -->
245 <term><option>--ucs-level=<replaceable>1|2|3</replaceable></option></term>
246 <listitem><para>Set the Joliet UCS support level. This is currently only flagged in the
247 image but not enforced on the actual path names.</para>
248 <para>Default level: 3</para>
249 </listitem>
250 </varlistentry>
251
252 </variablelist>
253 </refsect2>
254
255 <refsect2 id="viso-options-file-attributes">
256 <title>File Attributes</title>
257 <variablelist>
258
259 <varlistentry>
260 <term><option>--rational-attribs</option></term>
261 <listitem><para>Enables rational file attribute handling (default):</para>
262 <itemizedlist spacing="compact">
263 <listitem><para>Owner ID is set to zero</para></listitem>
264 <listitem><para>Group ID is set to zero</para></listitem>
265 <listitem><para>Mode is set to 0444 for non-executable files.</para></listitem>
266 <listitem><para>Mode is set to 0555 for executable files.</para></listitem>
267 <listitem><para>Mode is set to 0555 for directories, preserving stick bits.</para></listitem>
268 </itemizedlist>
269 </listitem>
270 </varlistentry>
271
272 <varlistentry>
273 <term><option>--strict-attribs</option></term>
274 <listitem><para>Counters <option>--rational-attribs</option> and causes attributes to be
275 recorded exactly as they appear in the source.</para>
276 </listitem>
277 </varlistentry>
278
279 <varlistentry>
280 <term><option>--file-mode=<replaceable>mode</replaceable></option></term>
281 <term><option>--no-file-mode</option></term>
282 <listitem><para>Controls the forced file mode mask for rock ridge, UDF and HFS.</para></listitem>
283 </varlistentry>
284
285 <varlistentry>
286 <term><option>--dir-mode=<replaceable>mode</replaceable></option></term>
287 <term><option>--no-dir-mode</option></term>
288 <listitem><para>Controls the forced directory mode mask for rock ridge, UDF and HFS.</para></listitem>
289 </varlistentry>
290
291 <varlistentry>
292 <term><option>--new-dir-mode=<replaceable>mode</replaceable></option></term>
293 <listitem><para>Controls the default mode mask (rock ridge, UDF, HFS) for directories that
294 are created implicitly. The <option>--dir-mode</option> option overrides this.</para>
295 </listitem>
296 </varlistentry>
297
298 <varlistentry>
299 <term><option>--chmod=<replaceable>mode</replaceable>:<replaceable>on-iso-file</replaceable></option></term>
300 <listitem><para>Explictily sets the rock ridge, UDF and HFS file mode for a file/dir/whatever
301 that has already been added to the ISO. The mode can be octal, <computeroutput>ra+x</computeroutput>,
302 <computeroutput>a+r</computeroutput>, or <computeroutput>a+rx</computeroutput>.
303 (Support for more complicated mode specifications may be implemented at a later point.)</para>
304 <para>Note that only namespaces in the current --name-setup are affected.</para>
305 </listitem>
306 </varlistentry>
307
308 <varlistentry>
309 <term><option>--chown=<replaceable>owner-id</replaceable>:<replaceable>on-iso-file</replaceable></option></term>
310 <listitem><para>Explictily sets the rock ridge, UDF and HFS file owner ID (numeric) for a
311 file/dir/whatever that has already been added to the ISO.</para>
312 <para>Note that only namespaces in the current --name-setup are affected.</para>
313 </listitem>
314 </varlistentry>
315
316 <varlistentry>
317 <term>--chgrp=<replaceable>group-id</replaceable>:<replaceable>on-iso-file</replaceable></term>
318 <listitem><para>Explictily sets the rock ridge, UDF and HFS file group ID (numeric) for a
319 file/dir/whatever that has already been added to the ISO.</para>
320 <para>Note that only namespaces in the current --name-setup are affected.</para>
321 </listitem>
322 </varlistentry>
323
324 </variablelist>
325 </refsect2>
326
327 <refsect2 id="viso-options-booting">
328 <title>Booting</title>
329 <variablelist>
330
331 <varlistentry>
332 <term><option>--eltorito-new-entry</option></term>
333 <term><option>--eltorito-alt-boot</option></term>
334 <listitem><para>Starts a new El Torito boot entry.</para></listitem>
335 </varlistentry>
336
337 <varlistentry>
338 <term><option>--eltorito-add-image=<replaceable>filespec</replaceable></option></term>
339 <listitem><para>File specification of a file that should be added to the image and used as
340 the El Torito boot image of the current boot entry.</para>
341 </listitem>
342 </varlistentry>
343
344 <varlistentry>
345 <term><option>-b <replaceable>on-iso-file</replaceable></option></term>
346 <term><option>--eltorito-boot=<replaceable>on-iso-file</replaceable></option></term>
347 <listitem><para>Specifies a file on the ISO as the El Torito boot image for the current boot
348 entry.</para>
349 </listitem>
350 </varlistentry>
351
352 <varlistentry>
353 <term><option>--eltorito-floppy-12</option></term>
354 <term><option>--eltorito-floppy-144</option></term>
355 <term><option>--eltorito-floppy-288</option></term>
356 <term><option>--no-emulation-boot</option></term>
357 <term><option>--hard-disk-boot</option></term>
358 <listitem><para>Sets the boot image emulation type of the current El Torito boot entry.</para></listitem>
359 </varlistentry>
360
361 <varlistentry>
362 <term><option>--boot-load-seg=<replaceable>seg</replaceable></option></term>
363 <listitem><para>Specify the image load segment for the current El Torito boot entry.</para>
364 <para>Default: 0x7c0</para>
365 </listitem>
366 </varlistentry>
367
368 <varlistentry>
369 <term><option>--boot-load-size=<replaceable>sectors</replaceable></option></term>
370 <listitem><para>Specify the image load size in emulated sectors for the current El Torito
371 boot entry.</para>
372 <para>Default: 4 (sectors of 512 bytes)</para>
373 </listitem>
374 </varlistentry>
375
376 <varlistentry>
377 <term><option>--no-boot</option></term>
378 <listitem><para>Indicates that the current El Torito boot entry isn't bootable. (The BIOS
379 will allegedly configure the emulation, but not attempt booting.)</para>
380 </listitem>
381 </varlistentry>
382
383 <varlistentry>
384 <term><option>--boot-info-table</option></term>
385 <listitem><para>Write a isolinux/syslinux boot info table into the boot image for the
386 current El Torito boot entry.</para>
387 </listitem>
388 </varlistentry>
389
390 <varlistentry>
391 <term><option>--eltorito-platform-id=<replaceable>id</replaceable></option></term>
392 <listitem><para>Set the El Torito platform ID of the current entry, a new entry of the
393 verification entry depending on when it's used. The ID must be one of:
394 <computeroutput>x86</computeroutput>, <computeroutput>PPC</computeroutput>,
395 <computeroutput>Mac</computeroutput>, <computeroutput>efi</computeroutput></para>
396 </listitem>
397 </varlistentry>
398
399 <varlistentry>
400 <term><option>-c <replaceable>namespec</replaceable></option></term>
401 <term><option>--boot-catalog=<replaceable>namespec</replaceable></option></term>
402 <listitem><para>Enters the El Torito boot catalog into the namespaces as a file. The
403 <replaceable>namespec</replaceable> uses the same format as a 'filespec', but omits the
404 final source file system name component.</para>
405 </listitem>
406 </varlistentry>
407
408 <varlistentry>
409 <term><option>-G <replaceable>file</replaceable></option></term>
410 <term><option>--generic-boot=<replaceable>file</replaceable></option></term>
411 <listitem><para>Specifies a file that should be loaded at offset 0 in the ISO image. The
412 file must not be larger than 32KB. When creating a hybrid image, parts of this may be
413 regenerated by partition tables and such.</para>
414 </listitem>
415 </varlistentry>
416
417 </variablelist>
418 </refsect2>
419
420 <refsect2 id="viso-options-string-properties">
421 <title>String properties (applied to active namespaces only)</title>
422 <variablelist>
423
424 <varlistentry>
425 <term><option>--abstract=<replaceable>file-id</replaceable></option></term>
426 <listitem><para>The name of the abstract file in the root dir.</para></listitem>
427 </varlistentry>
428
429 <varlistentry>
430 <term><option>-A <replaceable>text|_file-id</replaceable></option></term>
431 <term><option>--application-id=<replaceable>text|_file-id</replaceable></option></term>
432 <listitem><para>Application ID string or root file name. The latter must be prefixed with
433 an underscore.</para>
434 </listitem>
435 </varlistentry>
436
437 <varlistentry>
438 <term><option>--biblio=<replaceable>file-id</replaceable></option></term>
439 <listitem><para>The name of the bibliographic file in the root dir.</para></listitem>
440 </varlistentry>
441
442 <varlistentry>
443 <term><option>--copyright=<replaceable>file-id</replaceable></option></term>
444 <listitem><para>The name of the copyright file in the root dir.</para></listitem>
445 </varlistentry>
446
447 <varlistentry>
448 <term><option>-P <replaceable>text|_file-id</replaceable></option></term>
449 <term><option>--publisher=<replaceable>text|_file-id</replaceable></option></term>
450 <listitem><para>Publisher ID string or root file name. The latter must be prefixed with an
451 underscore.</para>
452 </listitem>
453 </varlistentry>
454
455 <varlistentry>
456 <term><option>-p <replaceable>text|_file-id</replaceable></option></term>
457 <term><option>--preparer=<replaceable>text|_file-id</replaceable></option></term>
458 <listitem><para>Data preparer ID string or root file name. The latter must be prefixed
459 with an underscore.</para>
460 </listitem>
461 </varlistentry>
462
463 <varlistentry>
464 <term><option>--sysid=<replaceable>text</replaceable></option></term>
465 <listitem><para>System ID string.</para></listitem>
466 </varlistentry>
467
468 <varlistentry>
469 <term><option>--volid=<replaceable>text</replaceable></option></term>
470 <term><option>--volume-id=<replaceable>text</replaceable></option></term>
471 <listitem><para>Volume ID string (label). (It is possible to set different labels for
472 primary ISO 9660, joliet, UDF and HFS by changing the active namespaces using the
473 <option>--name-setup</option> option between <option>--volume-id</option> occurences.)</para>
474 </listitem>
475 </varlistentry>
476
477 <varlistentry>
478 <term><option>--volset=<replaceable>text</replaceable></option></term>
479 <listitem><para>Volume set ID string.</para></listitem>
480 </varlistentry>
481
482 </variablelist>
483 </refsect2>
484
485 <refsect2 id="viso-options-compatibility">
486 <title>Compatibility:</title>
487 <variablelist>
488
489 <varlistentry>
490 <term><option>--graft-points</option></term>
491 <listitem><para>Alias for --name-setup iso+joliet+udf+hfs.</para></listitem>
492 </varlistentry>
493
494 <varlistentry>
495 <term><option>-l</option></term>
496 <term><option>--long-names</option></term>
497 <listitem><para>Allow 31 charater filenames. Just ensure ISO level >= 2 here.</para></listitem>
498 </varlistentry>
499
500 <varlistentry>
501 <term><option>-R</option></term>
502 <term><option>--rock</option></term>
503 <listitem><para>Same as <option>--rock-ridge</option> and <option>--strict-attribs</option>.</para></listitem>
504 </varlistentry>
505
506 <varlistentry>
507 <term><option>-r</option></term>
508 <term><option>--rational-rock</option></term>
509 <listitem><para>Same as <option>--rock-ridge</option> and <option>--rational-attribs</option>.</para></listitem>
510 </varlistentry>
511
512 </variablelist>
513 </refsect2>
514
515
516 <refsect2 id="viso-options-viso-specific">
517 <title>VISO Specific:</title>
518 <variablelist>
519
520 <varlistentry>
521 <term><option>--iprt-iso-maker-file-marker=<replaceable>UUID</replaceable></option></term>
522 <term><option>--iprt-iso-maker-file-marker-bourne=<replaceable>UUID</replaceable></option></term>
523 <term><option>--iprt-iso-maker-file-marker-bourne-sh=<replaceable>UUID</replaceable></option></term>
524 <listitem><para>Used as first option in a VISO file to specify the file UUID and that it is
525 formatted using bourne-shell argument quoting &amp; escaping style.</para>
526 </listitem>
527 </varlistentry>
528
529 <varlistentry>
530 <term><option>--iprt-iso-maker-file-marker-ms=<replaceable>UUID</replaceable></option></term>
531 <term><option>--iprt-iso-maker-file-marker-ms-sh=<replaceable>UUID</replaceable></option></term>
532 <listitem><para>Used as first option in a VISO file to specify the file UUID and that it is
533 formatted using microsoft CRT argument quoting &amp; escaping style.</para>
534 </listitem>
535 </varlistentry>
536
537 </variablelist>
538 </refsect2>
539
540
541 <refsect2 id="viso-options-testing">
542 <title>Testing (not applicable to VISO):</title>
543 <variablelist>
544
545 <varlistentry>
546 <term><option>--output-buffer-size=<replaceable>bytes</replaceable></option></term>
547 <listitem><para>Selects a specific output buffer size for testing virtual image reads.</para></listitem>
548 </varlistentry>
549
550 <varlistentry>
551 <term><option>--random-output-buffer-size</option></term>
552 <listitem><para>Enables randomized buffer size for each virtual image read, using the
553 current output buffer size (<option>--output-buffer-size</option>) as maximum.</para>
554 </listitem>
555 </varlistentry>
556
557 <varlistentry>
558 <term><option>--random-order-verification=<replaceable>size</replaceable></option></term>
559 <listitem><para>Enables verification pass of the image that compares blocks of the given
560 size in random order from the virtual and output images.</para>
561 </listitem>
562 </varlistentry>
563
564 </variablelist>
565 </refsect2>
566
567 </refsect1>
568</refentry>
569
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