source: chapter06/e2fsprogs.xml@ f448389

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Last change on this file since f448389 was f448389, checked in by Bruce Dubbs <bdubbs@…>, 6 years ago

Update to several urls to use https.
Update to Python3-3.6.5.
Update to openssl-1.1.0h.
Update to e2fsprogs-1.44.1.
Update to tzdata-2018d.
Update to meson-0.45.1.
Update to linux-4.15.14.
Update to sysvinit-2.89.

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-e2fsprogs" role="wrap">
9 <?dbhtml filename="e2fsprogs.html"?>
10
11 <sect1info condition="script">
12 <productname>e2fsprogs</productname>
13 <productnumber>&e2fsprogs-version;</productnumber>
14 <address>&e2fsprogs-url;</address>
15 </sect1info>
16
17 <title>E2fsprogs-&e2fsprogs-version;</title>
18
19 <indexterm zone="ch-system-e2fsprogs">
20 <primary sortas="a-E2fsprogs">E2fsprogs</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The E2fsprogs package contains the utilities for handling the
27 <systemitem class="filesystem">ext2</systemitem> file system. It also
28 supports the <systemitem class="filesystem">ext3</systemitem> and
29 <systemitem class="filesystem">ext4</systemitem> journaling
30 file systems.</para>
31
32 <segmentedlist>
33 <segtitle>&buildtime;</segtitle>
34 <segtitle>&diskspace;</segtitle>
35
36 <seglistitem>
37 <seg>&e2fsprogs-ch6-sbu;</seg>
38 <seg>&e2fsprogs-ch6-du;</seg>
39 </seglistitem>
40 </segmentedlist>
41
42 </sect2>
43
44 <sect2 role="installation">
45 <title>Installation of E2fsprogs</title>
46<!--
47 <para>First, fix a script that adjusts testing output:</para>
48
49<screen><userinput remap="pre">sed -i -e 's:\[\.-\]::' tests/filter.sed</userinput></screen>
50-->
51 <para>The E2fsprogs documentation recommends that the package be built in
52 a subdirectory of the source tree: </para>
53
54<screen><userinput remap="pre">mkdir -v build
55cd build</userinput></screen>
56
57 <para>Prepare E2fsprogs for compilation:</para>
58
59<screen><userinput remap="configure">LIBS=-L/tools/lib \
60CFLAGS=-I/tools/include \
61PKG_CONFIG_PATH=/tools/lib/pkgconfig \
62../configure --prefix=/usr \
63 --bindir=/bin \
64 --with-root-prefix="" \
65 --enable-elf-shlibs \
66 --disable-libblkid \
67 --disable-libuuid \
68 --disable-uuidd \
69 --disable-fsck</userinput></screen>
70
71 <variablelist>
72 <title>The meaning of the environment variable and configure options:</title>
73
74 <varlistentry>
75 <term><parameter>PKG_CONFIG_PATH, LIBS, CFLAGS</parameter></term>
76 <listitem>
77 <para>These variables enable e2fsprogs to be built using the
78 <xref linkend="ch-tools-util-linux"/> package built earlier.</para>
79 </listitem>
80 </varlistentry>
81
82 <varlistentry>
83 <term><parameter>--with-root-prefix=""</parameter> and
84 <parameter>--bindir=/bin</parameter></term>
85 <listitem>
86 <para>Certain programs (such as the <command>e2fsck</command>
87 program) are considered essential programs. When, for example,
88 <filename class="directory">/usr</filename> is not mounted, these
89 programs still need to be available. They belong in directories
90 like <filename class="directory">/lib</filename> and <filename
91 class="directory">/sbin</filename>. If this option is not passed
92 to E2fsprogs' configure, the programs are installed into the
93 <filename class="directory">/usr</filename> directory.</para>
94 </listitem>
95 </varlistentry>
96
97 <varlistentry>
98 <term><parameter>--enable-elf-shlibs</parameter></term>
99 <listitem>
100 <para>This creates the shared libraries which some programs
101 in this package use.</para>
102 </listitem>
103 </varlistentry>
104
105 <varlistentry>
106 <term><parameter>--disable-*</parameter></term>
107 <listitem>
108 <para>This prevents E2fsprogs from building and installing the
109 <systemitem class="library">libuuid</systemitem> and
110 <systemitem class="library">libblkid</systemitem> libraries, the
111 <systemitem class="daemon">uuidd</systemitem> daemon, and the
112 <command>fsck</command> wrapper, as Util-Linux installs more
113 recent versions.</para>
114 </listitem>
115 </varlistentry>
116
117 </variablelist>
118
119 <para>Compile the package:</para>
120
121<screen><userinput remap="make">make</userinput></screen>
122
123 <para>To set up and run the test suite we need to first link some
124 libraries from /tools/lib to a location where the test programs look.
125 To run the tests, issue:</para>
126
127<screen><userinput remap="test">ln -sfv /tools/lib/lib{blk,uu}id.so.1 lib
128make LD_LIBRARY_PATH=/tools/lib check</userinput></screen>
129
130 <para>One of the E2fsprogs tests will attempt to allocate 256 MB of memory.
131 If you do not have significantly more RAM than this, be sure to enable
132 sufficient swap space for the test. See <xref
133 linkend="space-creatingfilesystem"/> and <xref linkend="space-mounting"/>
134 for details on creating and enabling swap space. Two tests, f_bigalloc_badinode
135 and f_bigalloc_orphan_list, are known ot fail.</para>
136
137 <para>Install the binaries, documentation, and shared libraries:</para>
138
139<screen><userinput remap="install">make install</userinput></screen>
140
141 <para>Install the static libraries and headers:</para>
142
143<screen><userinput remap="install">make install-libs</userinput></screen>
144
145 <para>Make the installed static libraries writable so debugging symbols can
146 be removed later:</para>
147
148<screen><userinput remap="install">chmod -v u+w /usr/lib/{libcom_err,libe2p,libext2fs,libss}.a</userinput></screen>
149
150 <para>This package installs a gzipped
151 <filename class="extension">.info</filename> file but doesn't update the
152 system-wide <filename>dir</filename> file. Unzip this file and then update
153 the system <filename>dir</filename> file using the following
154 commands.</para>
155
156<screen><userinput remap="install">gunzip -v /usr/share/info/libext2fs.info.gz
157install-info --dir-file=/usr/share/info/dir /usr/share/info/libext2fs.info</userinput></screen>
158
159 <para>If desired, create and install some additional documentation by
160 issuing the following commands:</para>
161
162<screen><userinput remap="install">makeinfo -o doc/com_err.info ../lib/et/com_err.texinfo
163install -v -m644 doc/com_err.info /usr/share/info
164install-info --dir-file=/usr/share/info/dir /usr/share/info/com_err.info</userinput></screen>
165 </sect2>
166
167 <sect2 id="contents-e2fsprogs" role="content">
168 <title>Contents of E2fsprogs</title>
169
170 <segmentedlist>
171 <segtitle>Installed programs</segtitle>
172 <segtitle>Installed libraries</segtitle>
173 <segtitle>Installed directories</segtitle>
174
175 <seglistitem>
176 <seg>badblocks, chattr, compile_et, debugfs, dumpe2fs,e2freefrag,
177 e2fsck, e2image, e2label, e2undo, e4defrag, filefrag, fsck.ext2,
178 fsck.ext3, fsck.ext4, fsck.ext4dev, logsave, lsattr, mk_cmds, mke2fs,
179 mkfs.ext2, mkfs.ext3, mkfs.ext4, mkfs.ext4dev, mklost+found,
180 resize2fs, and tune2fs</seg>
181 <seg>libcom_err.so, libe2p.so, libext2fs.so, and libss.so</seg>
182 <seg>/usr/include/e2p, /usr/include/et, /usr/include/ext2fs,
183 /usr/include/ss, /usr/share/et, and /usr/share/ss</seg>
184 </seglistitem>
185 </segmentedlist>
186
187 <variablelist>
188 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
189 <?dbfo list-presentation="list"?>
190 <?dbhtml list-presentation="table"?>
191
192 <varlistentry id="badblocks">
193 <term><command>badblocks</command></term>
194 <listitem>
195 <para>Searches a device (usually a disk partition) for bad
196 blocks</para>
197 <indexterm zone="ch-system-e2fsprogs badblocks">
198 <primary sortas="b-badblocks">badblocks</primary>
199 </indexterm>
200 </listitem>
201 </varlistentry>
202
203 <varlistentry id="chattr">
204 <term><command>chattr</command></term>
205 <listitem>
206 <para>Changes the attributes of files on an <systemitem
207 class="filesystem">ext2</systemitem> file system; it also
208 changes <systemitem class="filesystem">ext3</systemitem>
209 file systems, the journaling version of <systemitem
210 class="filesystem">ext2</systemitem> file systems</para>
211 <indexterm zone="ch-system-e2fsprogs chattr">
212 <primary sortas="b-chattr">chattr</primary>
213 </indexterm>
214 </listitem>
215 </varlistentry>
216
217 <varlistentry id="compile_et">
218 <term><command>compile_et</command></term>
219 <listitem>
220 <para>An error table compiler; it converts a table of error-code
221 names and messages into a C source file suitable for use with the
222 <filename class="libraryfile">com_err</filename> library</para>
223 <indexterm zone="ch-system-e2fsprogs compile_et">
224 <primary sortas="b-compile_et">compile_et</primary>
225 </indexterm>
226 </listitem>
227 </varlistentry>
228
229 <varlistentry id="debugfs">
230 <term><command>debugfs</command></term>
231 <listitem>
232 <para>A file system debugger; it can be used to examine and change
233 the state of an <systemitem class="filesystem">ext2</systemitem>
234 file system</para>
235 <indexterm zone="ch-system-e2fsprogs debugfs">
236 <primary sortas="b-debugfs">debugfs</primary>
237 </indexterm>
238 </listitem>
239 </varlistentry>
240
241 <varlistentry id="dumpe2fs">
242 <term><command>dumpe2fs</command></term>
243 <listitem>
244 <para>Prints the super block and blocks group information for the
245 file system present on a given device</para>
246 <indexterm zone="ch-system-e2fsprogs dumpe2fs">
247 <primary sortas="b-dumpe2fs">dumpe2fs</primary>
248 </indexterm>
249 </listitem>
250 </varlistentry>
251
252 <varlistentry id="e2freefrag">
253 <term><command>e2freefrag</command></term>
254 <listitem>
255 <para>Reports free space fragmentation information</para>
256 <indexterm zone="ch-system-e2fsprogs e2freefrag">
257 <primary sortas="b-e2freefrag">e2freefrag</primary>
258 </indexterm>
259 </listitem>
260 </varlistentry>
261
262 <varlistentry id="e2fsck">
263 <term><command>e2fsck</command></term>
264 <listitem>
265 <para>Is used to check, and optionally repair <systemitem
266 class="filesystem">ext2</systemitem> file systems and <systemitem
267 class="filesystem">ext3</systemitem> file systems</para>
268 <indexterm zone="ch-system-e2fsprogs e2fsck">
269 <primary sortas="b-e2fsck">e2fsck</primary>
270 </indexterm>
271 </listitem>
272 </varlistentry>
273
274 <varlistentry id="e2image">
275 <term><command>e2image</command></term>
276 <listitem>
277 <para>Is used to save critical <systemitem
278 class="filesystem">ext2</systemitem> file system data to a file</para>
279 <indexterm zone="ch-system-e2fsprogs e2image">
280 <primary sortas="b-e2image">e2image</primary>
281 </indexterm>
282 </listitem>
283 </varlistentry>
284
285 <varlistentry id="e2label">
286 <term><command>e2label</command></term>
287 <listitem>
288 <para>Displays or changes the file system label on the <systemitem
289 class="filesystem">ext2</systemitem> file system present on a given
290 device</para>
291 <indexterm zone="ch-system-e2fsprogs e2label">
292 <primary sortas="b-e2label">e2label</primary>
293 </indexterm>
294 </listitem>
295 </varlistentry>
296
297 <varlistentry id="e2undo">
298 <term><command>e2undo</command></term>
299 <listitem>
300 <para>Replays the undo log undo_log for an ext2/ext3/ext4 filesystem
301 found on a device [This can be used to undo a failed operation by an
302 e2fsprogs program.]</para>
303 <indexterm zone="ch-system-e2fsprogs e2undo">
304 <primary sortas="b-e2undo">e2undo</primary>
305 </indexterm>
306 </listitem>
307 </varlistentry>
308
309 <varlistentry id="e4defrag">
310 <term><command>e4defrag</command></term>
311 <listitem>
312 <para>Online defragmenter for ext4 filesystems</para>
313 <indexterm zone="ch-system-e2fsprogs e4defrag">
314 <primary sortas="b-e4defrag">e4defrag</primary>
315 </indexterm>
316 </listitem>
317 </varlistentry>
318
319 <varlistentry id="filefrag">
320 <term><command>filefrag</command></term>
321 <listitem>
322 <para>Reports on how badly fragmented a particular file might be</para>
323 <indexterm zone="ch-system-e2fsprogs filefrag">
324 <primary sortas="b-filefrag">filefrag</primary>
325 </indexterm>
326 </listitem>
327 </varlistentry>
328
329 <varlistentry id="fsck.ext2">
330 <term><command>fsck.ext2</command></term>
331 <listitem>
332 <para>By default checks <systemitem class="filesystem">ext2</systemitem>
333 file systems and is a hard link to <command>e2fsck</command></para>
334 <indexterm zone="ch-system-e2fsprogs fsck.ext2">
335 <primary sortas="b-fsck.ext2">fsck.ext2</primary>
336 </indexterm>
337 </listitem>
338 </varlistentry>
339
340 <varlistentry id="fsck.ext3">
341 <term><command>fsck.ext3</command></term>
342 <listitem>
343 <para>By default checks <systemitem class="filesystem">ext3</systemitem>
344 file systems and is a hard link to <command>e2fsck</command></para>
345 <indexterm zone="ch-system-e2fsprogs fsck.ext3">
346 <primary sortas="b-fsck.ext3">fsck.ext3</primary>
347 </indexterm>
348 </listitem>
349 </varlistentry>
350
351 <varlistentry id="fsck.ext4">
352 <term><command>fsck.ext4</command></term>
353 <listitem>
354 <para>By default checks <systemitem class="filesystem">ext4</systemitem>
355 file systems and is a hard link to <command>e2fsck</command></para>
356 <indexterm zone="ch-system-e2fsprogs fsck.ext4">
357 <primary sortas="b-fsck.ext4">fsck.ext4</primary>
358 </indexterm>
359 </listitem>
360 </varlistentry>
361
362 <varlistentry id="fsck.ext4dev">
363 <term><command>fsck.ext4dev</command></term>
364 <listitem>
365 <para>By default checks <systemitem class="filesystem">ext4</systemitem>
366 development file systems and is a hard link to
367 <command>e2fsck</command></para>
368 <indexterm zone="ch-system-e2fsprogs fsck.ext4dev">
369 <primary sortas="b-fsck.ext4dev">fsck.ext4dev</primary>
370 </indexterm>
371 </listitem>
372 </varlistentry>
373
374 <varlistentry id="logsave">
375 <term><command>logsave</command></term>
376 <listitem>
377 <para>Saves the output of a command in a log file</para>
378 <indexterm zone="ch-system-e2fsprogs logsave">
379 <primary sortas="b-logsave">logsave</primary>
380 </indexterm>
381 </listitem>
382 </varlistentry>
383
384 <varlistentry id="lsattr">
385 <term><command>lsattr</command></term>
386 <listitem>
387 <para>Lists the attributes of files on a second extended file
388 system</para>
389 <indexterm zone="ch-system-e2fsprogs lsattr">
390 <primary sortas="b-lsattr">lsattr</primary>
391 </indexterm>
392 </listitem>
393 </varlistentry>
394
395 <varlistentry id="mk_cmds">
396 <term><command>mk_cmds</command></term>
397 <listitem>
398 <para>Converts a table of command names and help messages into a C
399 source file suitable for use with the <filename
400 class="libraryfile">libss</filename> subsystem library</para>
401 <indexterm zone="ch-system-e2fsprogs mk_cmds">
402 <primary sortas="b-mk_cmds">mk_cmds</primary>
403 </indexterm>
404 </listitem>
405 </varlistentry>
406
407 <varlistentry id="mke2fs">
408 <term><command>mke2fs</command></term>
409 <listitem>
410 <para>Creates an <systemitem class="filesystem">ext2</systemitem>
411 or <systemitem class="filesystem">ext3</systemitem> file system on
412 the given device</para>
413 <indexterm zone="ch-system-e2fsprogs mke2fs">
414 <primary sortas="b-mke2fs">mke2fs</primary>
415 </indexterm>
416 </listitem>
417 </varlistentry>
418
419 <varlistentry id="mkfs.ext2">
420 <term><command>mkfs.ext2</command></term>
421 <listitem>
422 <para>By default creates <systemitem class="filesystem">ext2</systemitem>
423 file systems and is a hard link to <command>mke2fs</command></para>
424 <indexterm zone="ch-system-e2fsprogs mkfs.ext2">
425 <primary sortas="b-mkfs.ext2">mkfs.ext2</primary>
426 </indexterm>
427 </listitem>
428 </varlistentry>
429
430 <varlistentry id="mkfs.ext3">
431 <term><command>mkfs.ext3</command></term>
432 <listitem>
433 <para>By default creates <systemitem class="filesystem">ext3</systemitem>
434 file systems and is a hard link to <command>mke2fs</command></para>
435 <indexterm zone="ch-system-e2fsprogs mkfs.ext3">
436 <primary sortas="b-mkfs.ext3">mkfs.ext3</primary>
437 </indexterm>
438 </listitem>
439 </varlistentry>
440
441 <varlistentry id="mkfs.ext4">
442 <term><command>mkfs.ext4</command></term>
443 <listitem>
444 <para>By default creates <systemitem class="filesystem">ext4</systemitem>
445 file systems and is a hard link to <command>mke2fs</command></para>
446 <indexterm zone="ch-system-e2fsprogs mkfs.ext4">
447 <primary sortas="b-mkfs.ext4">mkfs.ext4</primary>
448 </indexterm>
449 </listitem>
450 </varlistentry>
451
452 <varlistentry id="mkfs.ext4dev">
453 <term><command>mkfs.ext4dev</command></term>
454 <listitem>
455 <para>By default creates <systemitem class="filesystem">ext4</systemitem>
456 development file systems and is a hard link to <command>mke2fs</command></para>
457 <indexterm zone="ch-system-e2fsprogs mkfs.ext4dev">
458 <primary sortas="b-mkfs.ext4dev">mkfs.ext4dev</primary>
459 </indexterm>
460 </listitem>
461 </varlistentry>
462
463 <varlistentry id="mklost-found">
464 <term><command>mklost+found</command></term>
465 <listitem>
466 <para>Used to create a <filename class="directory">lost+found</filename>
467 directory on an <systemitem class="filesystem">ext2</systemitem> file
468 system; it pre-allocates disk blocks to this directory to lighten the
469 task of <command>e2fsck</command></para>
470 <indexterm zone="ch-system-e2fsprogs mklost-found">
471 <primary sortas="b-mklost+found">mklost+found</primary>
472 </indexterm>
473 </listitem>
474 </varlistentry>
475
476 <varlistentry id="resize2fs">
477 <term><command>resize2fs</command></term>
478 <listitem>
479 <para>Can be used to enlarge or shrink an <systemitem
480 class="filesystem">ext2</systemitem> file system</para>
481 <indexterm zone="ch-system-e2fsprogs resize2fs">
482 <primary sortas="b-resize2fs">resize2fs</primary>
483 </indexterm>
484 </listitem>
485 </varlistentry>
486
487 <varlistentry id="tune2fs">
488 <term><command>tune2fs</command></term>
489 <listitem>
490 <para>Adjusts tunable file system parameters on an <systemitem
491 class="filesystem">ext2</systemitem> file system</para>
492 <indexterm zone="ch-system-e2fsprogs tune2fs">
493 <primary sortas="b-tune2fs">tune2fs</primary>
494 </indexterm>
495 </listitem>
496 </varlistentry>
497
498 <varlistentry id="libcom_err">
499 <term><filename class="libraryfile">libcom_err</filename></term>
500 <listitem>
501 <para>The common error display routine</para>
502 <indexterm zone="ch-system-e2fsprogs libcom_err">
503 <primary sortas="c-libcom_err">libcom_err</primary>
504 </indexterm>
505 </listitem>
506 </varlistentry>
507
508 <varlistentry id="libe2p">
509 <term><filename class="libraryfile">libe2p</filename></term>
510 <listitem>
511 <para>Used by <command>dumpe2fs</command>, <command>chattr</command>,
512 and <command>lsattr</command></para>
513 <indexterm zone="ch-system-e2fsprogs libe2p">
514 <primary sortas="c-libe2p">libe2p</primary>
515 </indexterm>
516 </listitem>
517 </varlistentry>
518
519 <varlistentry id="libext2fs">
520 <term><filename class="libraryfile">libext2fs</filename></term>
521 <listitem>
522 <para>Contains routines to enable user-level programs to manipulate an
523 <systemitem class="filesystem">ext2</systemitem> file system</para>
524 <indexterm zone="ch-system-e2fsprogs libext2fs">
525 <primary sortas="c-libext2fs">libext2fs</primary>
526 </indexterm>
527 </listitem>
528 </varlistentry>
529
530 <varlistentry id="libss">
531 <term><filename class="libraryfile">libss</filename></term>
532 <listitem>
533 <para>Used by <command>debugfs</command></para>
534 <indexterm zone="ch-system-e2fsprogs libss">
535 <primary sortas="c-libss">libss</primary>
536 </indexterm>
537 </listitem>
538 </varlistentry>
539
540 </variablelist>
541
542 </sect2>
543
544</sect1>
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