1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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5 | %general-entities;
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6 | ]>
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7 |
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8 | <sect1 id="ch-system-e2fsprogs" role="wrap">
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9 | <?dbhtml filename="e2fsprogs.html"?>
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10 |
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11 | <sect1info condition="script">
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12 | <productname>e2fsprogs</productname>
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13 | <productnumber>&e2fsprogs-version;</productnumber>
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14 | <address>&e2fsprogs-url;</address>
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15 | </sect1info>
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16 |
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17 | <title>E2fsprogs-&e2fsprogs-version;</title>
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18 |
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19 | <indexterm zone="ch-system-e2fsprogs">
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20 | <primary sortas="a-E2fsprogs">E2fsprogs</primary>
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21 | </indexterm>
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22 |
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23 | <sect2 role="package">
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24 | <title/>
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25 |
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26 | <para>The e2fsprogs package contains the utilities for handling the
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27 | <systemitem class="filesystem">ext2</systemitem> file system. It also
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28 | supports the <systemitem class="filesystem">ext3</systemitem> and
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29 | <systemitem class="filesystem">ext4</systemitem> journaling
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30 | file systems.</para>
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31 |
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32 | <segmentedlist>
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33 | <segtitle>&buildtime;</segtitle>
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34 | <segtitle>&diskspace;</segtitle>
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35 |
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36 | <seglistitem>
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37 | <seg>&e2fsprogs-fin-sbu;</seg>
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38 | <seg>&e2fsprogs-fin-du;</seg>
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39 | </seglistitem>
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40 | </segmentedlist>
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41 |
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42 | </sect2>
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43 |
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44 | <sect2 role="installation">
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45 | <title>Installation of E2fsprogs</title>
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46 |
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47 | <para>The e2fsprogs documentation recommends that the package be built in
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48 | a subdirectory of the source tree: </para>
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49 |
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50 | <screen><userinput remap="pre">mkdir -v build
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51 | cd build</userinput></screen>
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52 |
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53 | <para>Prepare e2fsprogs for compilation:</para>
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54 |
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55 | <screen><userinput remap="configure">../configure --prefix=/usr \
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56 | --sysconfdir=/etc \
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57 | --enable-elf-shlibs \
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58 | --disable-libblkid \
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59 | --disable-libuuid \
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60 | --disable-uuidd \
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61 | --disable-fsck</userinput></screen>
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62 |
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63 | <variablelist>
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64 | <title>The meaning of the configure options:</title>
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65 |
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66 | <varlistentry>
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67 | <term><parameter>--enable-elf-shlibs</parameter></term>
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68 | <listitem>
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69 | <para>This creates the shared libraries which some programs
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70 | in this package use.</para>
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71 | </listitem>
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72 | </varlistentry>
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73 |
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74 | <varlistentry>
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75 | <term><parameter>--disable-*</parameter></term>
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76 | <listitem>
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77 | <para>This prevents e2fsprogs from building and installing the
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78 | <systemitem class="library">libuuid</systemitem> and
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79 | <systemitem class="library">libblkid</systemitem> libraries, the
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80 | <systemitem class="daemon">uuidd</systemitem> daemon, and the
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81 | <command>fsck</command> wrapper, as util-linux installs more
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82 | recent versions.</para>
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83 | </listitem>
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84 | </varlistentry>
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85 |
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86 | </variablelist>
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87 |
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88 | <para>Compile the package:</para>
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89 |
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90 | <screen><userinput remap="make">make</userinput></screen>
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91 |
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92 | <para>To run the tests, issue:</para>
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93 |
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94 | <screen><userinput remap="test">make check</userinput></screen>
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95 |
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96 | <para>One test, u_direct_io, is known to fail on some systems.</para>
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97 |
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98 | <!-- This is a ridiculous amount now! And is it still true?
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99 | Does not appear to be true for version 1.46.3. Time with tests
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100 | 26 seconds with tests (With lots of cores and ram and an ssd disk).
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101 |
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102 | <para>One of the e2fsprogs tests will attempt to allocate 256 MB of memory.
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103 | If you do not have significantly more RAM than this, be sure to enable
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104 | sufficient swap space for the test. See <xref
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105 | linkend="ch-partitioning-creatingfilesystem"/> and <xref
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106 | linkend="ch-partitioning-mounting"/>
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107 | for details on creating and enabling swap space.</para>
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108 |
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109 | <para>On a spinning disk, the tests take a little more than 4 SBUs. They
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110 | can be much shorter on an SSD (down to about 1.5 SBUs).</para>
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111 | -->
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112 | <para>Install the package:</para>
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113 |
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114 | <screen><userinput remap="install">make install</userinput></screen>
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115 |
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116 | <para>Remove useless static libraries:</para>
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117 |
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118 | <screen><userinput remap="install">rm -fv /usr/lib/{libcom_err,libe2p,libext2fs,libss}.a</userinput></screen>
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119 |
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120 | <para>This package installs a gzipped
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121 | <filename class="extension">.info</filename> file but doesn't update the
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122 | system-wide <filename>dir</filename> file. Unzip this file and then update
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123 | the system <filename>dir</filename> file using the following
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124 | commands:</para>
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125 |
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126 | <screen><userinput remap="install">gunzip -v /usr/share/info/libext2fs.info.gz
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127 | install-info --dir-file=/usr/share/info/dir /usr/share/info/libext2fs.info</userinput></screen>
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128 |
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129 | <para>If desired, create and install some additional documentation by
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130 | issuing the following commands:</para>
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131 |
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132 | <screen><userinput remap="install">makeinfo -o doc/com_err.info ../lib/et/com_err.texinfo
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133 | install -v -m644 doc/com_err.info /usr/share/info
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134 | install-info --dir-file=/usr/share/info/dir /usr/share/info/com_err.info</userinput></screen>
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135 | </sect2>
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136 |
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137 | <sect2 id="contents-e2fsprogs" role="content">
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138 | <title>Contents of E2fsprogs</title>
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139 |
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140 | <segmentedlist>
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141 | <segtitle>Installed programs</segtitle>
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142 | <segtitle>Installed libraries</segtitle>
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143 | <segtitle>Installed directories</segtitle>
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144 |
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145 | <seglistitem>
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146 | <seg>badblocks, chattr, compile_et, debugfs, dumpe2fs, e2freefrag,
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147 | e2fsck, e2image, e2label, e2mmpstatus, e2scrub, e2scrub_all, e2undo,
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148 | e4crypt, e4defrag, filefrag, fsck.ext2,
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149 | fsck.ext3, fsck.ext4, logsave, lsattr, mk_cmds, mke2fs,
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150 | mkfs.ext2, mkfs.ext3, mkfs.ext4, mklost+found,
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151 | resize2fs, and tune2fs</seg>
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152 | <seg>libcom_err.so, libe2p.so, libext2fs.so, and libss.so</seg>
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153 | <seg>/usr/include/e2p, /usr/include/et, /usr/include/ext2fs,
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154 | /usr/include/ss, /usr/lib/e2fsprogs, /usr/share/et, and
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155 | /usr/share/ss</seg>
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156 | </seglistitem>
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157 | </segmentedlist>
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158 |
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159 | <variablelist>
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160 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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161 | <?dbfo list-presentation="list"?>
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162 | <?dbhtml list-presentation="table"?>
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163 |
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164 | <varlistentry id="badblocks">
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165 | <term><command>badblocks</command></term>
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166 | <listitem>
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167 | <para>Searches a device (usually a disk partition) for bad
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168 | blocks</para>
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169 | <indexterm zone="ch-system-e2fsprogs badblocks">
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170 | <primary sortas="b-badblocks">badblocks</primary>
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171 | </indexterm>
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172 | </listitem>
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173 | </varlistentry>
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174 |
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175 | <varlistentry id="chattr">
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176 | <term><command>chattr</command></term>
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177 | <listitem>
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178 | <para>Changes the attributes of files on an <systemitem
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179 | class="filesystem">ext2</systemitem> file system; it also
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180 | changes <systemitem class="filesystem">ext3</systemitem>
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181 | file systems, the journaling version of <systemitem
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182 | class="filesystem">ext2</systemitem> file systems</para>
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183 | <indexterm zone="ch-system-e2fsprogs chattr">
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184 | <primary sortas="b-chattr">chattr</primary>
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185 | </indexterm>
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186 | </listitem>
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187 | </varlistentry>
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188 |
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189 | <varlistentry id="compile_et">
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190 | <term><command>compile_et</command></term>
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191 | <listitem>
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192 | <para>An error table compiler; it converts a table of error-code
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193 | names and messages into a C source file suitable for use with the
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194 | <filename class="libraryfile">com_err</filename> library</para>
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195 | <indexterm zone="ch-system-e2fsprogs compile_et">
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196 | <primary sortas="b-compile_et">compile_et</primary>
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197 | </indexterm>
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198 | </listitem>
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199 | </varlistentry>
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200 |
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201 | <varlistentry id="debugfs">
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202 | <term><command>debugfs</command></term>
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203 | <listitem>
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204 | <para>A file system debugger; it can be used to examine and change
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205 | the state of an <systemitem class="filesystem">ext2</systemitem>
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206 | file system</para>
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207 | <indexterm zone="ch-system-e2fsprogs debugfs">
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208 | <primary sortas="b-debugfs">debugfs</primary>
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209 | </indexterm>
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210 | </listitem>
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211 | </varlistentry>
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212 |
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213 | <varlistentry id="dumpe2fs">
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214 | <term><command>dumpe2fs</command></term>
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215 | <listitem>
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216 | <para>Prints the super block and blocks group information for the
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217 | file system present on a given device</para>
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218 | <indexterm zone="ch-system-e2fsprogs dumpe2fs">
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219 | <primary sortas="b-dumpe2fs">dumpe2fs</primary>
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220 | </indexterm>
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221 | </listitem>
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222 | </varlistentry>
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223 |
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224 | <varlistentry id="e2freefrag">
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225 | <term><command>e2freefrag</command></term>
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226 | <listitem>
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227 | <para>Reports free space fragmentation information</para>
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228 | <indexterm zone="ch-system-e2fsprogs e2freefrag">
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229 | <primary sortas="b-e2freefrag">e2freefrag</primary>
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230 | </indexterm>
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231 | </listitem>
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232 | </varlistentry>
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233 |
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234 | <varlistentry id="e2fsck">
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235 | <term><command>e2fsck</command></term>
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236 | <listitem>
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237 | <para>Is used to check, and optionally repair <systemitem
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238 | class="filesystem">ext2</systemitem> file systems and <systemitem
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239 | class="filesystem">ext3</systemitem> file systems</para>
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240 | <indexterm zone="ch-system-e2fsprogs e2fsck">
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241 | <primary sortas="b-e2fsck">e2fsck</primary>
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242 | </indexterm>
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243 | </listitem>
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244 | </varlistentry>
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245 |
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246 | <varlistentry id="e2image">
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247 | <term><command>e2image</command></term>
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248 | <listitem>
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249 | <para>Is used to save critical <systemitem
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250 | class="filesystem">ext2</systemitem> file system data to a file</para>
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251 | <indexterm zone="ch-system-e2fsprogs e2image">
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252 | <primary sortas="b-e2image">e2image</primary>
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253 | </indexterm>
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254 | </listitem>
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255 | </varlistentry>
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256 |
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257 | <varlistentry id="e2label">
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258 | <term><command>e2label</command></term>
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259 | <listitem>
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260 | <para>Displays or changes the file system label on the <systemitem
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261 | class="filesystem">ext2</systemitem> file system present on a given
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262 | device</para>
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263 | <indexterm zone="ch-system-e2fsprogs e2label">
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264 | <primary sortas="b-e2label">e2label</primary>
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265 | </indexterm>
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266 | </listitem>
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267 | </varlistentry>
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268 |
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269 | <varlistentry id="e2mmpstatus">
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270 | <term><command>e2mmpstatus</command></term>
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271 | <listitem>
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272 | <para>Checks MMP status of an ext4 filesystem</para>
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273 | <indexterm zone="ch-system-e2fsprogs e2mmpstatus">
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274 | <primary sortas="b-e2mmpstatus">e2mmpstatus</primary>
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275 | </indexterm>
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276 | </listitem>
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277 | </varlistentry>
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278 |
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279 | <varlistentry id="e2scrub">
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280 | <term><command>e2scrub</command></term>
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281 | <listitem>
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282 | <para>Checks the contents of a mounted ext[234] filesystem</para>
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283 | <indexterm zone="ch-system-e2fsprogs e2scrub">
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284 | <primary sortas="b-e2scrub">e2scrub</primary>
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285 | </indexterm>
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286 | </listitem>
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287 | </varlistentry>
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288 |
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289 | <varlistentry id="e2scrub_all">
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290 | <term><command>e2scrub_all</command></term>
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291 | <listitem>
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292 | <para>Checks all mounted ext[234] filesystems for errors</para>
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293 | <indexterm zone="ch-system-e2fsprogs e2scrub_all">
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294 | <primary sortas="b-e2scrub_all">e2scrub_all</primary>
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295 | </indexterm>
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296 | </listitem>
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297 | </varlistentry>
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298 |
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299 | <varlistentry id="e2undo">
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300 | <term><command>e2undo</command></term>
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301 | <listitem>
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302 | <para>Replays the undo log undo_log for an ext2/ext3/ext4 filesystem
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303 | found on a device [This can be used to undo a failed operation by an
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304 | e2fsprogs program.]</para>
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305 | <indexterm zone="ch-system-e2fsprogs e2undo">
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306 | <primary sortas="b-e2undo">e2undo</primary>
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307 | </indexterm>
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308 | </listitem>
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309 | </varlistentry>
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310 |
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311 | <varlistentry id="e4crypt">
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312 | <term><command>e4crypt</command></term>
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313 | <listitem>
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314 | <para>Ext4 filesystem encryption utility</para>
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315 | <indexterm zone="ch-system-e2fsprogs e4crypt">
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316 | <primary sortas="b-e4crypt">e4crypt</primary>
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317 | </indexterm>
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318 | </listitem>
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319 | </varlistentry>
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320 |
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321 | <varlistentry id="e4defrag">
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322 | <term><command>e4defrag</command></term>
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323 | <listitem>
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324 | <para>Online defragmenter for ext4 filesystems</para>
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325 | <indexterm zone="ch-system-e2fsprogs e4defrag">
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326 | <primary sortas="b-e4defrag">e4defrag</primary>
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327 | </indexterm>
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328 | </listitem>
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329 | </varlistentry>
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330 |
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331 | <varlistentry id="filefrag">
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332 | <term><command>filefrag</command></term>
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333 | <listitem>
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334 | <para>Reports on how badly fragmented a particular file might be</para>
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335 | <indexterm zone="ch-system-e2fsprogs filefrag">
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336 | <primary sortas="b-filefrag">filefrag</primary>
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337 | </indexterm>
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338 | </listitem>
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339 | </varlistentry>
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340 |
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341 | <varlistentry id="fsck.ext2">
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342 | <term><command>fsck.ext2</command></term>
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343 | <listitem>
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344 | <para>By default checks <systemitem class="filesystem">ext2</systemitem>
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345 | file systems and is a hard link to <command>e2fsck</command></para>
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346 | <indexterm zone="ch-system-e2fsprogs fsck.ext2">
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347 | <primary sortas="b-fsck.ext2">fsck.ext2</primary>
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348 | </indexterm>
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349 | </listitem>
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350 | </varlistentry>
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351 |
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352 | <varlistentry id="fsck.ext3">
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353 | <term><command>fsck.ext3</command></term>
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354 | <listitem>
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355 | <para>By default checks <systemitem class="filesystem">ext3</systemitem>
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356 | file systems and is a hard link to <command>e2fsck</command></para>
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357 | <indexterm zone="ch-system-e2fsprogs fsck.ext3">
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358 | <primary sortas="b-fsck.ext3">fsck.ext3</primary>
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359 | </indexterm>
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360 | </listitem>
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361 | </varlistentry>
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362 |
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363 | <varlistentry id="fsck.ext4">
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364 | <term><command>fsck.ext4</command></term>
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365 | <listitem>
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366 | <para>By default checks <systemitem class="filesystem">ext4</systemitem>
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367 | file systems and is a hard link to <command>e2fsck</command></para>
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368 | <indexterm zone="ch-system-e2fsprogs fsck.ext4">
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369 | <primary sortas="b-fsck.ext4">fsck.ext4</primary>
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370 | </indexterm>
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371 | </listitem>
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372 | </varlistentry>
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373 |
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374 | <varlistentry id="logsave">
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375 | <term><command>logsave</command></term>
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376 | <listitem>
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377 | <para>Saves the output of a command in a log file</para>
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378 | <indexterm zone="ch-system-e2fsprogs logsave">
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379 | <primary sortas="b-logsave">logsave</primary>
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380 | </indexterm>
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381 | </listitem>
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382 | </varlistentry>
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383 |
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384 | <varlistentry id="lsattr">
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385 | <term><command>lsattr</command></term>
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386 | <listitem>
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387 | <para>Lists the attributes of files on a second extended file
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388 | system</para>
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389 | <indexterm zone="ch-system-e2fsprogs lsattr">
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390 | <primary sortas="b-lsattr">lsattr</primary>
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391 | </indexterm>
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392 | </listitem>
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393 | </varlistentry>
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394 |
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395 | <varlistentry id="mk_cmds">
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396 | <term><command>mk_cmds</command></term>
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397 | <listitem>
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398 | <para>Converts a table of command names and help messages into a C
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399 | source file suitable for use with the <filename
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400 | class="libraryfile">libss</filename> subsystem library</para>
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401 | <indexterm zone="ch-system-e2fsprogs mk_cmds">
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402 | <primary sortas="b-mk_cmds">mk_cmds</primary>
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403 | </indexterm>
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404 | </listitem>
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405 | </varlistentry>
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406 |
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407 | <varlistentry id="mke2fs">
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408 | <term><command>mke2fs</command></term>
|
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409 | <listitem>
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410 | <para>Creates an <systemitem class="filesystem">ext2</systemitem>
|
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411 | or <systemitem class="filesystem">ext3</systemitem> file system on
|
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412 | the given device</para>
|
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413 | <indexterm zone="ch-system-e2fsprogs mke2fs">
|
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414 | <primary sortas="b-mke2fs">mke2fs</primary>
|
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415 | </indexterm>
|
---|
416 | </listitem>
|
---|
417 | </varlistentry>
|
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418 |
|
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419 | <varlistentry id="mkfs.ext2">
|
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420 | <term><command>mkfs.ext2</command></term>
|
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421 | <listitem>
|
---|
422 | <para>By default creates <systemitem class="filesystem">ext2</systemitem>
|
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423 | file systems and is a hard link to <command>mke2fs</command></para>
|
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424 | <indexterm zone="ch-system-e2fsprogs mkfs.ext2">
|
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425 | <primary sortas="b-mkfs.ext2">mkfs.ext2</primary>
|
---|
426 | </indexterm>
|
---|
427 | </listitem>
|
---|
428 | </varlistentry>
|
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429 |
|
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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="mklost-found">
|
---|
453 | <term><command>mklost+found</command></term>
|
---|
454 | <listitem>
|
---|
455 | <para>Used to create a <filename class="directory">lost+found</filename>
|
---|
456 | directory on an <systemitem class="filesystem">ext2</systemitem> file
|
---|
457 | system; it pre-allocates disk blocks to this directory to lighten the
|
---|
458 | task of <command>e2fsck</command></para>
|
---|
459 | <indexterm zone="ch-system-e2fsprogs mklost-found">
|
---|
460 | <primary sortas="b-mklost+found">mklost+found</primary>
|
---|
461 | </indexterm>
|
---|
462 | </listitem>
|
---|
463 | </varlistentry>
|
---|
464 |
|
---|
465 | <varlistentry id="resize2fs">
|
---|
466 | <term><command>resize2fs</command></term>
|
---|
467 | <listitem>
|
---|
468 | <para>Can be used to enlarge or shrink an <systemitem
|
---|
469 | class="filesystem">ext2</systemitem> file system</para>
|
---|
470 | <indexterm zone="ch-system-e2fsprogs resize2fs">
|
---|
471 | <primary sortas="b-resize2fs">resize2fs</primary>
|
---|
472 | </indexterm>
|
---|
473 | </listitem>
|
---|
474 | </varlistentry>
|
---|
475 |
|
---|
476 | <varlistentry id="tune2fs">
|
---|
477 | <term><command>tune2fs</command></term>
|
---|
478 | <listitem>
|
---|
479 | <para>Adjusts tunable file system parameters on an <systemitem
|
---|
480 | class="filesystem">ext2</systemitem> file system</para>
|
---|
481 | <indexterm zone="ch-system-e2fsprogs tune2fs">
|
---|
482 | <primary sortas="b-tune2fs">tune2fs</primary>
|
---|
483 | </indexterm>
|
---|
484 | </listitem>
|
---|
485 | </varlistentry>
|
---|
486 |
|
---|
487 | <varlistentry id="libcom_err">
|
---|
488 | <term><filename class="libraryfile">libcom_err</filename></term>
|
---|
489 | <listitem>
|
---|
490 | <para>The common error display routine</para>
|
---|
491 | <indexterm zone="ch-system-e2fsprogs libcom_err">
|
---|
492 | <primary sortas="c-libcom_err">libcom_err</primary>
|
---|
493 | </indexterm>
|
---|
494 | </listitem>
|
---|
495 | </varlistentry>
|
---|
496 |
|
---|
497 | <varlistentry id="libe2p">
|
---|
498 | <term><filename class="libraryfile">libe2p</filename></term>
|
---|
499 | <listitem>
|
---|
500 | <para>Used by <command>dumpe2fs</command>, <command>chattr</command>,
|
---|
501 | and <command>lsattr</command></para>
|
---|
502 | <indexterm zone="ch-system-e2fsprogs libe2p">
|
---|
503 | <primary sortas="c-libe2p">libe2p</primary>
|
---|
504 | </indexterm>
|
---|
505 | </listitem>
|
---|
506 | </varlistentry>
|
---|
507 |
|
---|
508 | <varlistentry id="libext2fs">
|
---|
509 | <term><filename class="libraryfile">libext2fs</filename></term>
|
---|
510 | <listitem>
|
---|
511 | <para>Contains routines to enable user-level programs to manipulate an
|
---|
512 | <systemitem class="filesystem">ext2</systemitem> file system</para>
|
---|
513 | <indexterm zone="ch-system-e2fsprogs libext2fs">
|
---|
514 | <primary sortas="c-libext2fs">libext2fs</primary>
|
---|
515 | </indexterm>
|
---|
516 | </listitem>
|
---|
517 | </varlistentry>
|
---|
518 |
|
---|
519 | <varlistentry id="libss">
|
---|
520 | <term><filename class="libraryfile">libss</filename></term>
|
---|
521 | <listitem>
|
---|
522 | <para>Used by <command>debugfs</command></para>
|
---|
523 | <indexterm zone="ch-system-e2fsprogs libss">
|
---|
524 | <primary sortas="c-libss">libss</primary>
|
---|
525 | </indexterm>
|
---|
526 | </listitem>
|
---|
527 | </varlistentry>
|
---|
528 |
|
---|
529 | </variablelist>
|
---|
530 |
|
---|
531 | </sect2>
|
---|
532 |
|
---|
533 | </sect1>
|
---|