source: chapter08/e2fsprogs.xml@ ad15abd

10.0 10.0-rc1 10.1 10.1-rc1 11.0 11.0-rc1 11.0-rc2 11.0-rc3 ml-11.0 multilib trunk xry111/git-transition xry111/glibc-2.34 xry111/tester-nohack xry111/usr-move
Last change on this file since ad15abd was ad15abd, checked in by Pierre Labastie <pieere@…>, 18 months ago
  • Fix SBUs in libpipeline
  • Update the disk usage gain in "Stripping Again"
  • mention SSD gain in e2fsprogs tests

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/cross2@11933 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

  • Property mode set to 100644
File size: 20.4 KB
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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-fin-sbu;</seg>
38 <seg>&e2fsprogs-fin-du;</seg>
39 </seglistitem>
40 </segmentedlist>
41
42 </sect2>
43
44 <sect2 role="installation">
45 <title>Installation of E2fsprogs</title>
46
47 <para>The e2fsprogs documentation recommends that the package be built in
48 a subdirectory of the source tree: </para>
49
50<screen><userinput remap="pre">mkdir -v build
51cd build</userinput></screen>
52
53 <para>Prepare e2fsprogs for compilation:</para>
54
55<screen><userinput remap="configure">../configure --prefix=/usr \
56 --bindir=/bin \
57 --with-root-prefix="" \
58 --enable-elf-shlibs \
59 --disable-libblkid \
60 --disable-libuuid \
61 --disable-uuidd \
62 --disable-fsck</userinput></screen>
63
64 <variablelist>
65 <title>The meaning of the configure options:</title>
66
67 <varlistentry>
68 <term><parameter>--with-root-prefix=""</parameter> and
69 <parameter>--bindir=/bin</parameter></term>
70 <listitem>
71 <para>Certain programs (such as the <command>e2fsck</command>
72 program) are considered essential programs. When, for example,
73 <filename class="directory">/usr</filename> is not mounted, these
74 programs still need to be available. They belong in directories
75 like <filename class="directory">/lib</filename> and <filename
76 class="directory">/sbin</filename>. If this option is not passed
77 to configure, the programs are installed into the
78 <filename class="directory">/usr</filename> directory.</para>
79 </listitem>
80 </varlistentry>
81
82 <varlistentry>
83 <term><parameter>--enable-elf-shlibs</parameter></term>
84 <listitem>
85 <para>This creates the shared libraries which some programs
86 in this package use.</para>
87 </listitem>
88 </varlistentry>
89
90 <varlistentry>
91 <term><parameter>--disable-*</parameter></term>
92 <listitem>
93 <para>This prevents e2fsprogs from building and installing the
94 <systemitem class="library">libuuid</systemitem> and
95 <systemitem class="library">libblkid</systemitem> libraries, the
96 <systemitem class="daemon">uuidd</systemitem> daemon, and the
97 <command>fsck</command> wrapper, as util-linux installs more
98 recent versions.</para>
99 </listitem>
100 </varlistentry>
101
102 </variablelist>
103
104 <para>Compile the package:</para>
105
106<screen><userinput remap="make">make</userinput></screen>
107
108 <para>To run the tests, issue:</para>
109
110<screen><userinput remap="test">make check</userinput></screen>
111<!-- This is a ridiculous amount now! And is it still true?
112 <para>One of the e2fsprogs tests will attempt to allocate 256 MB of memory.
113 If you do not have significantly more RAM than this, be sure to enable
114 sufficient swap space for the test. See <xref
115 linkend="ch-partitioning-creatingfilesystem"/> and <xref
116 linkend="ch-partitioning-mounting"/>
117 for details on creating and enabling swap space.</para>
118-->
119 <para>On a spinning disk, the tests take a little more than 4 SBUs. They
120 can be much shorter on an SSD (down to about 1.5 SBUs).</para>
121 <para>Install the package:</para>
122
123<screen><userinput remap="install">make install</userinput></screen>
124
125 <para>Make the installed static libraries writable so debugging symbols can
126 be removed later:</para>
127
128<screen><userinput remap="install">chmod -v u+w /usr/lib/{libcom_err,libe2p,libext2fs,libss}.a</userinput></screen>
129
130 <para>This package installs a gzipped
131 <filename class="extension">.info</filename> file but doesn't update the
132 system-wide <filename>dir</filename> file. Unzip this file and then update
133 the system <filename>dir</filename> file using the following
134 commands:</para>
135
136<screen><userinput remap="install">gunzip -v /usr/share/info/libext2fs.info.gz
137install-info --dir-file=/usr/share/info/dir /usr/share/info/libext2fs.info</userinput></screen>
138
139 <para>If desired, create and install some additional documentation by
140 issuing the following commands:</para>
141
142<screen><userinput remap="install">makeinfo -o doc/com_err.info ../lib/et/com_err.texinfo
143install -v -m644 doc/com_err.info /usr/share/info
144install-info --dir-file=/usr/share/info/dir /usr/share/info/com_err.info</userinput></screen>
145 </sect2>
146
147 <sect2 id="contents-e2fsprogs" role="content">
148 <title>Contents of E2fsprogs</title>
149
150 <segmentedlist>
151 <segtitle>Installed programs</segtitle>
152 <segtitle>Installed libraries</segtitle>
153 <segtitle>Installed directories</segtitle>
154
155 <seglistitem>
156 <seg>badblocks, chattr, compile_et, debugfs, dumpe2fs, e2freefrag,
157 e2fsck, e2image, e2label, e2mmpstatus, e2scrub, e2scrub_all, e2undo,
158 e4crypt, e4defrag, filefrag, fsck.ext2,
159 fsck.ext3, fsck.ext4, logsave, lsattr, mk_cmds, mke2fs,
160 mkfs.ext2, mkfs.ext3, mkfs.ext4, mklost+found,
161 resize2fs, and tune2fs</seg>
162 <seg>libcom_err.so, libe2p.so, libext2fs.so, and libss.so</seg>
163 <seg>/usr/include/e2p, /usr/include/et, /usr/include/ext2fs,
164 /usr/include/ss, /usr/lib/e2fsprogs, /usr/share/et, and
165 /usr/share/ss</seg>
166 </seglistitem>
167 </segmentedlist>
168
169 <variablelist>
170 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
171 <?dbfo list-presentation="list"?>
172 <?dbhtml list-presentation="table"?>
173
174 <varlistentry id="badblocks">
175 <term><command>badblocks</command></term>
176 <listitem>
177 <para>Searches a device (usually a disk partition) for bad
178 blocks</para>
179 <indexterm zone="ch-system-e2fsprogs badblocks">
180 <primary sortas="b-badblocks">badblocks</primary>
181 </indexterm>
182 </listitem>
183 </varlistentry>
184
185 <varlistentry id="chattr">
186 <term><command>chattr</command></term>
187 <listitem>
188 <para>Changes the attributes of files on an <systemitem
189 class="filesystem">ext2</systemitem> file system; it also
190 changes <systemitem class="filesystem">ext3</systemitem>
191 file systems, the journaling version of <systemitem
192 class="filesystem">ext2</systemitem> file systems</para>
193 <indexterm zone="ch-system-e2fsprogs chattr">
194 <primary sortas="b-chattr">chattr</primary>
195 </indexterm>
196 </listitem>
197 </varlistentry>
198
199 <varlistentry id="compile_et">
200 <term><command>compile_et</command></term>
201 <listitem>
202 <para>An error table compiler; it converts a table of error-code
203 names and messages into a C source file suitable for use with the
204 <filename class="libraryfile">com_err</filename> library</para>
205 <indexterm zone="ch-system-e2fsprogs compile_et">
206 <primary sortas="b-compile_et">compile_et</primary>
207 </indexterm>
208 </listitem>
209 </varlistentry>
210
211 <varlistentry id="debugfs">
212 <term><command>debugfs</command></term>
213 <listitem>
214 <para>A file system debugger; it can be used to examine and change
215 the state of an <systemitem class="filesystem">ext2</systemitem>
216 file system</para>
217 <indexterm zone="ch-system-e2fsprogs debugfs">
218 <primary sortas="b-debugfs">debugfs</primary>
219 </indexterm>
220 </listitem>
221 </varlistentry>
222
223 <varlistentry id="dumpe2fs">
224 <term><command>dumpe2fs</command></term>
225 <listitem>
226 <para>Prints the super block and blocks group information for the
227 file system present on a given device</para>
228 <indexterm zone="ch-system-e2fsprogs dumpe2fs">
229 <primary sortas="b-dumpe2fs">dumpe2fs</primary>
230 </indexterm>
231 </listitem>
232 </varlistentry>
233
234 <varlistentry id="e2freefrag">
235 <term><command>e2freefrag</command></term>
236 <listitem>
237 <para>Reports free space fragmentation information</para>
238 <indexterm zone="ch-system-e2fsprogs e2freefrag">
239 <primary sortas="b-e2freefrag">e2freefrag</primary>
240 </indexterm>
241 </listitem>
242 </varlistentry>
243
244 <varlistentry id="e2fsck">
245 <term><command>e2fsck</command></term>
246 <listitem>
247 <para>Is used to check, and optionally repair <systemitem
248 class="filesystem">ext2</systemitem> file systems and <systemitem
249 class="filesystem">ext3</systemitem> file systems</para>
250 <indexterm zone="ch-system-e2fsprogs e2fsck">
251 <primary sortas="b-e2fsck">e2fsck</primary>
252 </indexterm>
253 </listitem>
254 </varlistentry>
255
256 <varlistentry id="e2image">
257 <term><command>e2image</command></term>
258 <listitem>
259 <para>Is used to save critical <systemitem
260 class="filesystem">ext2</systemitem> file system data to a file</para>
261 <indexterm zone="ch-system-e2fsprogs e2image">
262 <primary sortas="b-e2image">e2image</primary>
263 </indexterm>
264 </listitem>
265 </varlistentry>
266
267 <varlistentry id="e2label">
268 <term><command>e2label</command></term>
269 <listitem>
270 <para>Displays or changes the file system label on the <systemitem
271 class="filesystem">ext2</systemitem> file system present on a given
272 device</para>
273 <indexterm zone="ch-system-e2fsprogs e2label">
274 <primary sortas="b-e2label">e2label</primary>
275 </indexterm>
276 </listitem>
277 </varlistentry>
278
279 <varlistentry id="e2mmpstatus">
280 <term><command>e2mmpstatus</command></term>
281 <listitem>
282 <para>Checks MMP status of an ext4 filesystem</para>
283 <indexterm zone="ch-system-e2fsprogs e2mmpstatus">
284 <primary sortas="b-e2mmpstatus">e2mmpstatus</primary>
285 </indexterm>
286 </listitem>
287 </varlistentry>
288
289 <varlistentry id="e2scrub">
290 <term><command>e2scrub</command></term>
291 <listitem>
292 <para>Checks the contents of a mounted ext[234] filesystem</para>
293 <indexterm zone="ch-system-e2fsprogs e2scrub">
294 <primary sortas="b-e2scrub">e2scrub</primary>
295 </indexterm>
296 </listitem>
297 </varlistentry>
298
299 <varlistentry id="e2scrub_all">
300 <term><command>e2scrub_all</command></term>
301 <listitem>
302 <para>Checks all mounted ext[234] filesystems for errors</para>
303 <indexterm zone="ch-system-e2fsprogs e2scrub_all">
304 <primary sortas="b-e2scrub_all">e2scrub_all</primary>
305 </indexterm>
306 </listitem>
307 </varlistentry>
308
309 <varlistentry id="e2undo">
310 <term><command>e2undo</command></term>
311 <listitem>
312 <para>Replays the undo log undo_log for an ext2/ext3/ext4 filesystem
313 found on a device [This can be used to undo a failed operation by an
314 e2fsprogs program.]</para>
315 <indexterm zone="ch-system-e2fsprogs e2undo">
316 <primary sortas="b-e2undo">e2undo</primary>
317 </indexterm>
318 </listitem>
319 </varlistentry>
320
321 <varlistentry id="e4crypt">
322 <term><command>e4crypt</command></term>
323 <listitem>
324 <para>Ext4 filesystem encryption utility</para>
325 <indexterm zone="ch-system-e2fsprogs e4crypt">
326 <primary sortas="b-e4crypt">e4crypt</primary>
327 </indexterm>
328 </listitem>
329 </varlistentry>
330
331 <varlistentry id="e4defrag">
332 <term><command>e4defrag</command></term>
333 <listitem>
334 <para>Online defragmenter for ext4 filesystems</para>
335 <indexterm zone="ch-system-e2fsprogs e4defrag">
336 <primary sortas="b-e4defrag">e4defrag</primary>
337 </indexterm>
338 </listitem>
339 </varlistentry>
340
341 <varlistentry id="filefrag">
342 <term><command>filefrag</command></term>
343 <listitem>
344 <para>Reports on how badly fragmented a particular file might be</para>
345 <indexterm zone="ch-system-e2fsprogs filefrag">
346 <primary sortas="b-filefrag">filefrag</primary>
347 </indexterm>
348 </listitem>
349 </varlistentry>
350
351 <varlistentry id="fsck.ext2">
352 <term><command>fsck.ext2</command></term>
353 <listitem>
354 <para>By default checks <systemitem class="filesystem">ext2</systemitem>
355 file systems and is a hard link to <command>e2fsck</command></para>
356 <indexterm zone="ch-system-e2fsprogs fsck.ext2">
357 <primary sortas="b-fsck.ext2">fsck.ext2</primary>
358 </indexterm>
359 </listitem>
360 </varlistentry>
361
362 <varlistentry id="fsck.ext3">
363 <term><command>fsck.ext3</command></term>
364 <listitem>
365 <para>By default checks <systemitem class="filesystem">ext3</systemitem>
366 file systems and is a hard link to <command>e2fsck</command></para>
367 <indexterm zone="ch-system-e2fsprogs fsck.ext3">
368 <primary sortas="b-fsck.ext3">fsck.ext3</primary>
369 </indexterm>
370 </listitem>
371 </varlistentry>
372
373 <varlistentry id="fsck.ext4">
374 <term><command>fsck.ext4</command></term>
375 <listitem>
376 <para>By default checks <systemitem class="filesystem">ext4</systemitem>
377 file systems and is a hard link to <command>e2fsck</command></para>
378 <indexterm zone="ch-system-e2fsprogs fsck.ext4">
379 <primary sortas="b-fsck.ext4">fsck.ext4</primary>
380 </indexterm>
381 </listitem>
382 </varlistentry>
383
384 <varlistentry id="logsave">
385 <term><command>logsave</command></term>
386 <listitem>
387 <para>Saves the output of a command in a log file</para>
388 <indexterm zone="ch-system-e2fsprogs logsave">
389 <primary sortas="b-logsave">logsave</primary>
390 </indexterm>
391 </listitem>
392 </varlistentry>
393
394 <varlistentry id="lsattr">
395 <term><command>lsattr</command></term>
396 <listitem>
397 <para>Lists the attributes of files on a second extended file
398 system</para>
399 <indexterm zone="ch-system-e2fsprogs lsattr">
400 <primary sortas="b-lsattr">lsattr</primary>
401 </indexterm>
402 </listitem>
403 </varlistentry>
404
405 <varlistentry id="mk_cmds">
406 <term><command>mk_cmds</command></term>
407 <listitem>
408 <para>Converts a table of command names and help messages into a C
409 source file suitable for use with the <filename
410 class="libraryfile">libss</filename> subsystem library</para>
411 <indexterm zone="ch-system-e2fsprogs mk_cmds">
412 <primary sortas="b-mk_cmds">mk_cmds</primary>
413 </indexterm>
414 </listitem>
415 </varlistentry>
416
417 <varlistentry id="mke2fs">
418 <term><command>mke2fs</command></term>
419 <listitem>
420 <para>Creates an <systemitem class="filesystem">ext2</systemitem>
421 or <systemitem class="filesystem">ext3</systemitem> file system on
422 the given device</para>
423 <indexterm zone="ch-system-e2fsprogs mke2fs">
424 <primary sortas="b-mke2fs">mke2fs</primary>
425 </indexterm>
426 </listitem>
427 </varlistentry>
428
429 <varlistentry id="mkfs.ext2">
430 <term><command>mkfs.ext2</command></term>
431 <listitem>
432 <para>By default creates <systemitem class="filesystem">ext2</systemitem>
433 file systems and is a hard link to <command>mke2fs</command></para>
434 <indexterm zone="ch-system-e2fsprogs mkfs.ext2">
435 <primary sortas="b-mkfs.ext2">mkfs.ext2</primary>
436 </indexterm>
437 </listitem>
438 </varlistentry>
439
440 <varlistentry id="mkfs.ext3">
441 <term><command>mkfs.ext3</command></term>
442 <listitem>
443 <para>By default creates <systemitem class="filesystem">ext3</systemitem>
444 file systems and is a hard link to <command>mke2fs</command></para>
445 <indexterm zone="ch-system-e2fsprogs mkfs.ext3">
446 <primary sortas="b-mkfs.ext3">mkfs.ext3</primary>
447 </indexterm>
448 </listitem>
449 </varlistentry>
450
451 <varlistentry id="mkfs.ext4">
452 <term><command>mkfs.ext4</command></term>
453 <listitem>
454 <para>By default creates <systemitem class="filesystem">ext4</systemitem>
455 file systems and is a hard link to <command>mke2fs</command></para>
456 <indexterm zone="ch-system-e2fsprogs mkfs.ext4">
457 <primary sortas="b-mkfs.ext4">mkfs.ext4</primary>
458 </indexterm>
459 </listitem>
460 </varlistentry>
461
462 <varlistentry id="mklost-found">
463 <term><command>mklost+found</command></term>
464 <listitem>
465 <para>Used to create a <filename class="directory">lost+found</filename>
466 directory on an <systemitem class="filesystem">ext2</systemitem> file
467 system; it pre-allocates disk blocks to this directory to lighten the
468 task of <command>e2fsck</command></para>
469 <indexterm zone="ch-system-e2fsprogs mklost-found">
470 <primary sortas="b-mklost+found">mklost+found</primary>
471 </indexterm>
472 </listitem>
473 </varlistentry>
474
475 <varlistentry id="resize2fs">
476 <term><command>resize2fs</command></term>
477 <listitem>
478 <para>Can be used to enlarge or shrink an <systemitem
479 class="filesystem">ext2</systemitem> file system</para>
480 <indexterm zone="ch-system-e2fsprogs resize2fs">
481 <primary sortas="b-resize2fs">resize2fs</primary>
482 </indexterm>
483 </listitem>
484 </varlistentry>
485
486 <varlistentry id="tune2fs">
487 <term><command>tune2fs</command></term>
488 <listitem>
489 <para>Adjusts tunable file system parameters on an <systemitem
490 class="filesystem">ext2</systemitem> file system</para>
491 <indexterm zone="ch-system-e2fsprogs tune2fs">
492 <primary sortas="b-tune2fs">tune2fs</primary>
493 </indexterm>
494 </listitem>
495 </varlistentry>
496
497 <varlistentry id="libcom_err">
498 <term><filename class="libraryfile">libcom_err</filename></term>
499 <listitem>
500 <para>The common error display routine</para>
501 <indexterm zone="ch-system-e2fsprogs libcom_err">
502 <primary sortas="c-libcom_err">libcom_err</primary>
503 </indexterm>
504 </listitem>
505 </varlistentry>
506
507 <varlistentry id="libe2p">
508 <term><filename class="libraryfile">libe2p</filename></term>
509 <listitem>
510 <para>Used by <command>dumpe2fs</command>, <command>chattr</command>,
511 and <command>lsattr</command></para>
512 <indexterm zone="ch-system-e2fsprogs libe2p">
513 <primary sortas="c-libe2p">libe2p</primary>
514 </indexterm>
515 </listitem>
516 </varlistentry>
517
518 <varlistentry id="libext2fs">
519 <term><filename class="libraryfile">libext2fs</filename></term>
520 <listitem>
521 <para>Contains routines to enable user-level programs to manipulate an
522 <systemitem class="filesystem">ext2</systemitem> file system</para>
523 <indexterm zone="ch-system-e2fsprogs libext2fs">
524 <primary sortas="c-libext2fs">libext2fs</primary>
525 </indexterm>
526 </listitem>
527 </varlistentry>
528
529 <varlistentry id="libss">
530 <term><filename class="libraryfile">libss</filename></term>
531 <listitem>
532 <para>Used by <command>debugfs</command></para>
533 <indexterm zone="ch-system-e2fsprogs libss">
534 <primary sortas="c-libss">libss</primary>
535 </indexterm>
536 </listitem>
537 </varlistentry>
538
539 </variablelist>
540
541 </sect2>
542
543</sect1>
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