source: BOOK/final-system/common/e2fsprogs.xml@ d67b65d

clfs-3.0.0-systemd systemd
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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 <title>E2fsprogs-&e2fsprogs-version;</title>
12
13 <indexterm zone="ch-system-e2fsprogs">
14 <primary sortas="a-E2fsprogs">E2fsprogs</primary>
15 </indexterm>
16
17 <sect2 role="package">
18 <title/>
19
20 <para>The E2fsprogs package contains the utilities for handling the
21 <systemitem class="filesystem">ext2</systemitem> file system. It also
22 supports the <systemitem class="filesystem">ext3</systemitem> and
23 <systemitem class="filesystem">ext4</systemitem> journaling
24 file systems.</para>
25
26 </sect2>
27
28 <sect2 role="installation">
29 <title>Installation of E2fsprogs</title>
30
31 <para os="a">The E2fsprogs documentation recommends that the package be
32 built in a subdirectory of the source tree:</para>
33
34<screen os="b"><userinput>mkdir -v build
35cd build</userinput></screen>
36
37 <para os="c">Prepare E2fsprogs for compilation:</para>
38
39<screen os="d"><userinput>../configure --prefix=/usr --with-root-prefix="" \
40 --enable-elf-shlibs --disable-libblkid \
41 --disable-libuuid --disable-fsck \
42 --disable-uuidd</userinput></screen>
43
44 <variablelist os="e">
45 <title>The meaning of the configure options:</title>
46
47 <varlistentry os="e1">
48 <term><parameter>--with-root-prefix=""</parameter></term>
49 <listitem>
50 <para>Certain programs (such as the <command>e2fsck</command>
51 program) are considered essential programs. When, for example,
52 <filename class="directory">/usr</filename> is not mounted,
53 these programs still need to be available. They belong in
54 directories like <filename class="directory">/lib</filename> and
55 <filename class="directory">/sbin</filename>. If this option is
56 not passed to E2fsprogs' configure, the programs are installed into
57 the <filename class="directory">/usr</filename> directory.</para>
58 </listitem>
59 </varlistentry>
60
61 <varlistentry os="e2">
62 <term><parameter>--enable-elf-shlibs</parameter></term>
63 <listitem>
64 <para>This creates the shared libraries which some programs
65 in this package use.</para>
66 </listitem>
67 </varlistentry>
68
69 <varlistentry os="e3">
70 <term><parameter>--disable-*</parameter></term>
71 <listitem>
72 <para>This prevents E2fsprogs from building and installing the
73 <systemitem class="library">libuuid</systemitem> and
74 <systemitem class="library">libblkid</systemitem> libraries, the
75 <systemitem class="daemon">uuidd</systemitem> daemon, and the
76 <command>fsck</command> wrapper, as Util-Linux installed all of
77 them earlier.</para>
78 </listitem>
79 </varlistentry>
80
81 </variablelist>
82
83 <para os="f">Compile the package:</para>
84
85<screen os="g"><userinput>make</userinput></screen>
86
87 <para os="h">To test the results, issue:</para>
88
89<screen os="h2"><userinput remap="test">make check</userinput></screen>
90
91 <para os="i">Install the binaries, documentation and shared libraries:</para>
92
93<screen os="j"><userinput>make install</userinput></screen>
94
95 <para os="k">Install the static libraries and headers:</para>
96
97<screen os="l"><userinput>make install-libs</userinput></screen>
98
99 </sect2>
100
101 <sect2 id="contents-e2fsprogs" role="content">
102 <title>Contents of E2fsprogs</title>
103
104 <segmentedlist>
105 <segtitle>Installed programs</segtitle>
106 <segtitle>Installed libraries</segtitle>
107 <segtitle>Installed directories</segtitle>
108
109 <seglistitem>
110 <seg>badblocks, chattr, compile_et, debugfs, dumpe2fs, e2freefrag,
111 e2fsck, e2image, e2initrd_helper, e2label, e2undo, e4defrag, filefrag,
112 fsck.ext2, fsck.ext3, fsck.ext4, fsck.ext4dev, logsave, lsattr,
113 mk_cmds, mke2fs, mkfs.ext2, mkfs.ext3, mkfs.ext4, mkfs.ext4dev,
114 mklost+found, resize2fs, and tune2fs</seg>
115 <seg>libcom_err.[a,so], libe2p.[a,so], libext2fs.[a,so],
116 libss.[a,so], and libquota.a</seg>
117 <seg>/usr/include/e2p, /usr/include/et, /usr/include/ext2fs,
118 /usr/include/quota, /usr/include/ss, /usr/share/et, /usr/share/ss</seg>
119 </seglistitem>
120 </segmentedlist>
121
122 <variablelist>
123 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
124 <?dbfo list-presentation="list"?>
125 <?dbhtml list-presentation="table"?>
126
127 <varlistentry id="badblocks">
128 <term><command>badblocks</command></term>
129 <listitem>
130 <para>Searches a device (usually a disk partition) for bad
131 blocks</para>
132 <indexterm zone="ch-system-e2fsprogs badblocks">
133 <primary sortas="b-badblocks">badblocks</primary>
134 </indexterm>
135 </listitem>
136 </varlistentry>
137
138 <varlistentry id="chattr">
139 <term><command>chattr</command></term>
140 <listitem>
141 <para>Changes the attributes on a Linux file system</para>
142 <indexterm zone="ch-system-e2fsprogs chattr">
143 <primary sortas="b-chattr">chattr</primary>
144 </indexterm>
145 </listitem>
146 </varlistentry>
147
148 <varlistentry id="compile_et">
149 <term><command>compile_et</command></term>
150 <listitem>
151 <para>An error table compiler; it converts a table of error-code
152 names and messages into a C source file suitable for use with the
153 <filename class="libraryfile">com_err</filename> library</para>
154 <indexterm zone="ch-system-e2fsprogs compile_et">
155 <primary sortas="b-compile_et">compile_et</primary>
156 </indexterm>
157 </listitem>
158 </varlistentry>
159
160 <varlistentry id="debugfs">
161 <term><command>debugfs</command></term>
162 <listitem>
163 <para>A file system debugger; it can be used to examine and change
164 the state of an <systemitem class="filesystem">ext2</systemitem>
165 file system</para>
166 <indexterm zone="ch-system-e2fsprogs debugfs">
167 <primary sortas="b-debugfs">debugfs</primary>
168 </indexterm>
169 </listitem>
170 </varlistentry>
171
172 <varlistentry id="dumpe2fs">
173 <term><command>dumpe2fs</command></term>
174 <listitem>
175 <para>Prints the super block and blocks group information for the
176 file system present on a given device</para>
177 <indexterm zone="ch-system-e2fsprogs dumpe2fs">
178 <primary sortas="b-dumpe2fs">dumpe2fs</primary>
179 </indexterm>
180 </listitem>
181 </varlistentry>
182
183 <varlistentry id="e2freefrag">
184 <term><command>e2freefrag</command></term>
185 <listitem>
186 <para> Reports free space fragmentation information</para>
187 <indexterm zone="ch-system-e2fsprogs e2freefrag">
188 <primary sortas="b-e2freefrag">e2freefrag</primary>
189 </indexterm>
190 </listitem>
191 </varlistentry>
192
193 <varlistentry id="e2fsck">
194 <term><command>e2fsck</command></term>
195 <listitem>
196 <para>Is used to check, and optionally repair <systemitem
197 class="filesystem">ext2</systemitem>, <systemitem
198 class="filesystem">ext3</systemitem> and <systemitem
199 class="filesystem">ext4</systemitem>file systems</para>
200 <indexterm zone="ch-system-e2fsprogs e2fsck">
201 <primary sortas="b-e2fsck">e2fsck</primary>
202 </indexterm>
203 </listitem>
204 </varlistentry>
205
206 <varlistentry id="e2image">
207 <term><command>e2image</command></term>
208 <listitem>
209 <para>Is used to save critical <systemitem
210 class="filesystem">ext2</systemitem> file system data to a file</para>
211 <indexterm zone="ch-system-e2fsprogs e2image">
212 <primary sortas="b-e2image">e2image</primary>
213 </indexterm>
214 </listitem>
215 </varlistentry>
216
217 <varlistentry id="e2initrd_helper">
218 <term><command>e2initrd_helper</command></term>
219 <listitem>
220 <para>Prints the FS type of a given filesystem, given either a
221 device name or label</para>
222 <indexterm zone="ch-system-e2fsprogs e2initrd_helper">
223 <primary sortas="b-e2initrd_helper">e2initrd_helper</primary>
224 </indexterm>
225 </listitem>
226 </varlistentry>
227
228 <varlistentry id="e2label">
229 <term><command>e2label</command></term>
230 <listitem>
231 <para>Displays or changes the file system label on the <systemitem
232 class="filesystem">ext2</systemitem> file system present on a given
233 device</para>
234 <indexterm zone="ch-system-e2fsprogs e2label">
235 <primary sortas="b-e2label">e2label</primary>
236 </indexterm>
237 </listitem>
238 </varlistentry>
239
240 <varlistentry id="e2undo">
241 <term><command>e2undo</command></term>
242 <listitem>
243 <para>Replays an undo log for an ext2/ext3/ext4 filesystem</para>
244 <indexterm zone="ch-system-e2fsprogs e2undo">
245 <primary sortas="b-e2undo">e2undo</primary>
246 </indexterm>
247 </listitem>
248 </varlistentry>
249
250 <varlistentry id="e4defrag">
251 <term><command>e4defrag</command></term>
252 <listitem>
253 <para>Online defragmenter for ext4 filesystems</para>
254 <indexterm zone="ch-system-e2fsprogs e4defrag">
255 <primary sortas="b-e4defrag">e4defrag</primary>
256 </indexterm>
257 </listitem>
258 </varlistentry>
259
260 <varlistentry id="filefrag">
261 <term><command>filefrag</command></term>
262 <listitem>
263 <para>Reports on how badly fragmented a particular file might be</para>
264 <indexterm zone="ch-system-e2fsprogs filefrag">
265 <primary sortas="b-filefrag">filefrag</primary>
266 </indexterm>
267 </listitem>
268 </varlistentry>
269
270 <varlistentry id="fsck.ext2">
271 <term><command>fsck.ext2</command></term>
272 <listitem>
273 <para>By default checks <systemitem class="filesystem">ext2</systemitem>
274 file systems</para>
275 <indexterm zone="ch-system-e2fsprogs fsck.ext2">
276 <primary sortas="b-fsck.ext2">fsck.ext2</primary>
277 </indexterm>
278 </listitem>
279 </varlistentry>
280
281 <varlistentry id="fsck.ext3">
282 <term><command>fsck.ext3</command></term>
283 <listitem>
284 <para>By default checks <systemitem class="filesystem">ext3</systemitem>
285 file systems</para>
286 <indexterm zone="ch-system-e2fsprogs fsck.ext3">
287 <primary sortas="b-fsck.ext3">fsck.ext3</primary>
288 </indexterm>
289 </listitem>
290 </varlistentry>
291
292 <varlistentry id="fsck.ext4">
293 <term><command>fsck.ext4</command></term>
294 <listitem>
295 <para>By default checks <systemitem class="filesystem">ext4</systemitem>
296 file systems</para>
297 <indexterm zone="ch-system-e2fsprogs fsck.ext4">
298 <primary sortas="b-fsck.ext4">fsck.ext4</primary>
299 </indexterm>
300 </listitem>
301 </varlistentry>
302
303 <varlistentry id="fsck.ext4dev">
304 <term><command>fsck.ext4dev</command></term>
305 <listitem>
306 <para>By default checks <systemitem class="filesystem">ext4dev</systemitem>
307 file systems</para>
308 <indexterm zone="ch-system-e2fsprogs fsck.ext4dev">
309 <primary sortas="b-fsck.ext4dev">fsck.ext4dev</primary>
310 </indexterm>
311 </listitem>
312 </varlistentry>
313
314 <varlistentry id="logsave">
315 <term><command>logsave</command></term>
316 <listitem>
317 <para>Saves the output of a command in a log file</para>
318 <indexterm zone="ch-system-e2fsprogs logsave">
319 <primary sortas="b-logsave">logsave</primary>
320 </indexterm>
321 </listitem>
322 </varlistentry>
323
324 <varlistentry id="lsattr">
325 <term><command>lsattr</command></term>
326 <listitem>
327 <para>Lists the attributes of files on a second extended file
328 system</para>
329 <indexterm zone="ch-system-e2fsprogs lsattr">
330 <primary sortas="b-lsattr">lsattr</primary>
331 </indexterm>
332 </listitem>
333 </varlistentry>
334
335 <varlistentry id="mk_cmds">
336 <term><command>mk_cmds</command></term>
337 <listitem>
338 <para>Converts a table of command names and help messages into a C
339 source file suitable for use with the <filename
340 class="libraryfile">libss</filename> subsystem library</para>
341 <indexterm zone="ch-system-e2fsprogs mk_cmds">
342 <primary sortas="b-mk_cmds">mk_cmds</primary>
343 </indexterm>
344 </listitem>
345 </varlistentry>
346
347 <varlistentry id="mke2fs">
348 <term><command>mke2fs</command></term>
349 <listitem>
350 <para>Creates an <systemitem class="filesystem">ext2</systemitem>,
351 <systemitem class="filesystem">ext3</systemitem> or <systemitem
352 class="filesystem">ext4</systemitem> file system on the given device</para>
353 <indexterm zone="ch-system-e2fsprogs mke2fs">
354 <primary sortas="b-mke2fs">mke2fs</primary>
355 </indexterm>
356 </listitem>
357 </varlistentry>
358
359 <varlistentry id="mkfs.ext2">
360 <term><command>mkfs.ext2</command></term>
361 <listitem>
362 <para>By default creates <systemitem class="filesystem">ext2</systemitem>
363 file systems</para>
364 <indexterm zone="ch-system-e2fsprogs mkfs.ext2">
365 <primary sortas="b-mkfs.ext2">mkfs.ext2</primary>
366 </indexterm>
367 </listitem>
368 </varlistentry>
369
370 <varlistentry id="mkfs.ext3">
371 <term><command>mkfs.ext3</command></term>
372 <listitem>
373 <para>By default creates <systemitem class="filesystem">ext3</systemitem>
374 file systems</para>
375 <indexterm zone="ch-system-e2fsprogs mkfs.ext3">
376 <primary sortas="b-mkfs.ext3">mkfs.ext3</primary>
377 </indexterm>
378 </listitem>
379 </varlistentry>
380
381 <varlistentry id="mkfs.ext4">
382 <term><command>mkfs.ext4</command></term>
383 <listitem>
384 <para>By default creates <systemitem class="filesystem">ext4</systemitem>
385 file systems</para>
386 <indexterm zone="ch-system-e2fsprogs mkfs.ext4">
387 <primary sortas="b-mkfs.ext4">mkfs.ext4</primary>
388 </indexterm>
389 </listitem>
390 </varlistentry>
391
392 <varlistentry id="mkfs.ext4dev">
393 <term><command>mkfs.ext4dev</command></term>
394 <listitem>
395 <para>By default creates <systemitem class="filesystem">ext4dev</systemitem>
396 file systems</para>
397 <indexterm zone="ch-system-e2fsprogs mkfs.ext4dev">
398 <primary sortas="b-mkfs.ext4dev">mkfs.ext4dev</primary>
399 </indexterm>
400 </listitem>
401 </varlistentry>
402
403 <varlistentry id="mklost-found">
404 <term><command>mklost+found</command></term>
405 <listitem>
406 <para>Used to create a <filename class="directory">lost+found</filename>
407 directory on an <systemitem class="filesystem">ext2</systemitem> file
408 system; it pre-allocates disk blocks to this directory to lighten the
409 task of <command>e2fsck</command></para>
410 <indexterm zone="ch-system-e2fsprogs mklost-found">
411 <primary sortas="b-mklost+found">mklost+found</primary>
412 </indexterm>
413 </listitem>
414 </varlistentry>
415
416 <varlistentry id="resize2fs">
417 <term><command>resize2fs</command></term>
418 <listitem>
419 <para>Can be used to enlarge or shrink an <systemitem
420 class="filesystem">ext2</systemitem> file system</para>
421 <indexterm zone="ch-system-e2fsprogs resize2fs">
422 <primary sortas="b-resize2fs">resize2fs</primary>
423 </indexterm>
424 </listitem>
425 </varlistentry>
426
427 <varlistentry id="tune2fs">
428 <term><command>tune2fs</command></term>
429 <listitem>
430 <para>Adjusts tunable file system parameters on an <systemitem
431 class="filesystem">ext2</systemitem> file system</para>
432 <indexterm zone="ch-system-e2fsprogs tune2fs">
433 <primary sortas="b-tune2fs">tune2fs</primary>
434 </indexterm>
435 </listitem>
436 </varlistentry>
437
438 <varlistentry id="libcom_err">
439 <term><filename class="libraryfile">libcom_err</filename></term>
440 <listitem>
441 <para>The common error display routine</para>
442 <indexterm zone="ch-system-e2fsprogs libcom_err">
443 <primary sortas="c-libcom_err">libcom_err</primary>
444 </indexterm>
445 </listitem>
446 </varlistentry>
447
448 <varlistentry id="libe2p">
449 <term><filename class="libraryfile">libe2p</filename></term>
450 <listitem>
451 <para>Used by <command>dumpe2fs</command>, <command>chattr</command>,
452 and <command>lsattr</command></para>
453 <indexterm zone="ch-system-e2fsprogs libe2p">
454 <primary sortas="c-libe2p">libe2p</primary>
455 </indexterm>
456 </listitem>
457 </varlistentry>
458
459 <varlistentry id="libext2fs">
460 <term><filename class="libraryfile">libext2fs</filename></term>
461 <listitem>
462 <para>Contains routines to enable user-level programs to manipulate an
463 <systemitem class="filesystem">ext2</systemitem> file system</para>
464 <indexterm zone="ch-system-e2fsprogs libext2fs">
465 <primary sortas="c-libext2fs">libext2fs</primary>
466 </indexterm>
467 </listitem>
468 </varlistentry>
469
470 <varlistentry id="libquota">
471 <term><filename class="libraryfile">libquota</filename></term>
472 <listitem>
473 <para>Provides an interface for creating and updating quota files
474 and ext4 superblock fields</para>
475 <indexterm zone="ch-system-e2fsprogs libquota">
476 <primary sortas="c-libquota">libquota</primary>
477 </indexterm>
478 </listitem>
479 </varlistentry>
480
481 <varlistentry id="libss">
482 <term><filename class="libraryfile">libss</filename></term>
483 <listitem>
484 <para>Used by <command>debugfs</command></para>
485 <indexterm zone="ch-system-e2fsprogs libss">
486 <primary sortas="c-libss">libss</primary>
487 </indexterm>
488 </listitem>
489 </varlistentry>
490
491 </variablelist>
492
493 </sect2>
494
495</sect1>
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