| 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 | <!ENTITY btrfs-progs-download-http "&kernel-dl;/linux/kernel/people/kdave/btrfs-progs/btrfs-progs-v&btrfs-progs-version;.tar.xz">
|
|---|
| 8 | <!ENTITY btrfs-progs-download-ftp " ">
|
|---|
| 9 | <!ENTITY btrfs-progs-md5sum "86402bb64e2021e6f0eb7d0cacd31fbb">
|
|---|
| 10 | <!ENTITY btrfs-progs-size "2.1 MB">
|
|---|
| 11 | <!ENTITY btrfs-progs-buildsize "62 MB (add 39 MB for tests)">
|
|---|
| 12 | <!ENTITY btrfs-progs-time "0.3 SBU (add 16 SBU for tests)">
|
|---|
| 13 | ]>
|
|---|
| 14 |
|
|---|
| 15 | <sect1 id="btrfs-progs" xreflabel="btrfs-progs-&btrfs-progs-version;">
|
|---|
| 16 | <?dbhtml filename="btrfs-progs.html"?>
|
|---|
| 17 |
|
|---|
| 18 | <sect1info>
|
|---|
| 19 | <othername>$LastChangedBy$</othername>
|
|---|
| 20 | <date>$Date$</date>
|
|---|
| 21 | </sect1info>
|
|---|
| 22 |
|
|---|
| 23 | <title>btrfs-progs-&btrfs-progs-version;</title>
|
|---|
| 24 |
|
|---|
| 25 | <indexterm zone="btrfs-progs">
|
|---|
| 26 | <primary sortas="a-btrfs-progs">btrfs-progs</primary>
|
|---|
| 27 | </indexterm>
|
|---|
| 28 |
|
|---|
| 29 | <sect2 role="package">
|
|---|
| 30 | <title>Introduction to btrfs-progs</title>
|
|---|
| 31 |
|
|---|
| 32 | <para>
|
|---|
| 33 | The <application>btrfs-progs</application> package contains
|
|---|
| 34 | administration and debugging tools for the B-tree file system (btrfs).
|
|---|
| 35 | </para>
|
|---|
| 36 |
|
|---|
| 37 | &lfs91_checked;
|
|---|
| 38 |
|
|---|
| 39 | <bridgehead renderas="sect3">Package Information</bridgehead>
|
|---|
| 40 | <itemizedlist spacing="compact">
|
|---|
| 41 | <listitem>
|
|---|
| 42 | <para>
|
|---|
| 43 | Download (HTTP): <ulink url="&btrfs-progs-download-http;"/>
|
|---|
| 44 | </para>
|
|---|
| 45 | </listitem>
|
|---|
| 46 | <listitem>
|
|---|
| 47 | <para>
|
|---|
| 48 | Download (FTP): <ulink url="&btrfs-progs-download-ftp;"/>
|
|---|
| 49 | </para>
|
|---|
| 50 | </listitem>
|
|---|
| 51 | <listitem>
|
|---|
| 52 | <para>
|
|---|
| 53 | Download MD5 sum: &btrfs-progs-md5sum;
|
|---|
| 54 | </para>
|
|---|
| 55 | </listitem>
|
|---|
| 56 | <listitem>
|
|---|
| 57 | <para>
|
|---|
| 58 | Download size: &btrfs-progs-size;
|
|---|
| 59 | </para>
|
|---|
| 60 | </listitem>
|
|---|
| 61 | <listitem>
|
|---|
| 62 | <para>
|
|---|
| 63 | Estimated disk space required: &btrfs-progs-buildsize;
|
|---|
| 64 | </para>
|
|---|
| 65 | </listitem>
|
|---|
| 66 | <listitem>
|
|---|
| 67 | <para>
|
|---|
| 68 | Estimated build time: &btrfs-progs-time;
|
|---|
| 69 | </para>
|
|---|
| 70 | </listitem>
|
|---|
| 71 | </itemizedlist>
|
|---|
| 72 |
|
|---|
| 73 | <bridgehead renderas="sect3">Btrfs-progs Dependencies</bridgehead>
|
|---|
| 74 |
|
|---|
| 75 | <bridgehead renderas="sect4">Required</bridgehead>
|
|---|
| 76 | <para role="required">
|
|---|
| 77 | <xref linkend="lzo"/>
|
|---|
| 78 | </para>
|
|---|
| 79 |
|
|---|
| 80 | <bridgehead renderas="sect4">Recommended</bridgehead>
|
|---|
| 81 | <para role="recommended">
|
|---|
| 82 | <xref linkend="asciidoc"/> and
|
|---|
| 83 | <xref linkend="xmlto"/> (both required to generate man pages)
|
|---|
| 84 | </para>
|
|---|
| 85 |
|
|---|
| 86 | <bridgehead renderas="sect4">Optional</bridgehead>
|
|---|
| 87 | <para role="optional">
|
|---|
| 88 | <xref linkend="lvm2"/> (<command>dmsetup</command> is used in tests),
|
|---|
| 89 | <xref linkend="python2"/> (python bindings), and
|
|---|
| 90 | <xref linkend="reiserfs"/> (for tests)
|
|---|
| 91 | </para>
|
|---|
| 92 |
|
|---|
| 93 | <para condition="html" role="usernotes">User Notes:
|
|---|
| 94 | <ulink url="&blfs-wiki;/btrfs-progs"/></para>
|
|---|
| 95 |
|
|---|
| 96 | </sect2>
|
|---|
| 97 |
|
|---|
| 98 | <sect2 role="kernel" id="btrfs-progs-kernel">
|
|---|
| 99 | <title>Kernel Configuration</title>
|
|---|
| 100 |
|
|---|
| 101 | <para>
|
|---|
| 102 | Enable the following option in the kernel configuration
|
|---|
| 103 | and recompile the kernel:
|
|---|
| 104 | </para>
|
|---|
| 105 |
|
|---|
| 106 | <screen><literal>File systems --->
|
|---|
| 107 | <*/M> Btrfs filesystem support [CONFIG_BTRFS_FS]</literal></screen>
|
|---|
| 108 |
|
|---|
| 109 | <note>
|
|---|
| 110 | <para>
|
|---|
| 111 | CONFIG_BTRFS_FS_POSIX_ACL and
|
|---|
| 112 | CONFIG_REISERFS_FS_XATTR are required for some tests.
|
|---|
| 113 | Other Btrfs options in the kernel are optional.
|
|---|
| 114 | </para>
|
|---|
| 115 | </note>
|
|---|
| 116 |
|
|---|
| 117 | <indexterm zone="btrfs-progs btrfs-progs-kernel">
|
|---|
| 118 | <primary sortas="d-btrfs-progs">BTRFS Programs</primary>
|
|---|
| 119 | </indexterm>
|
|---|
| 120 |
|
|---|
| 121 | </sect2>
|
|---|
| 122 |
|
|---|
| 123 | <sect2 role="installation">
|
|---|
| 124 | <title>Installation of btrfs-progs</title>
|
|---|
| 125 |
|
|---|
| 126 | <para>
|
|---|
| 127 | Install <application>btrfs-progs</application> by running the following
|
|---|
| 128 | commands:
|
|---|
| 129 | </para>
|
|---|
| 130 |
|
|---|
| 131 | <screen><userinput>./configure --prefix=/usr \
|
|---|
| 132 | --bindir=/bin \
|
|---|
| 133 | --libdir=/lib &&
|
|---|
| 134 | make</userinput></screen>
|
|---|
| 135 |
|
|---|
| 136 | <note>
|
|---|
| 137 | <para>
|
|---|
| 138 | Some tests require grep built with perl regular expressions. To
|
|---|
| 139 | obtain this, rebuild grep with the LFS Chapter 6 instructions after
|
|---|
| 140 | installing <xref linkend="pcre"/>.
|
|---|
| 141 | </para>
|
|---|
| 142 | </note>
|
|---|
| 143 |
|
|---|
| 144 | <para>
|
|---|
| 145 | Before running tests, build a support program and
|
|---|
| 146 | disable several that fail:
|
|---|
| 147 | </para>
|
|---|
| 148 |
|
|---|
| 149 | <screen remap="test"><userinput>make fssum &&
|
|---|
| 150 |
|
|---|
| 151 | sed -i '/found/s/^/: #/' tests/convert-tests.sh &&
|
|---|
| 152 |
|
|---|
| 153 | mv tests/convert-tests/010-reiserfs-basic/test.sh{,.broken} &&
|
|---|
| 154 | mv tests/convert-tests/011-reiserfs-delete-all-rollback/test.sh{,.broken} &&
|
|---|
| 155 | mv tests/convert-tests/012-reiserfs-large-hole-extent/test.sh{,.broken} &&
|
|---|
| 156 | mv tests/convert-tests/013-reiserfs-common-inode-flags/test.sh{,.broken} &&
|
|---|
| 157 | mv tests/convert-tests/014-reiserfs-tail-handling/test.sh{,.broken}</userinput></screen>
|
|---|
| 158 |
|
|---|
| 159 | <para>
|
|---|
| 160 | To test the results, issue (as the <systemitem
|
|---|
| 161 | class="username">root</systemitem> user):
|
|---|
| 162 | </para>
|
|---|
| 163 |
|
|---|
| 164 | <screen role="root" remap="test"><userinput>pushd tests
|
|---|
| 165 | ./fsck-tests.sh <!-- 43 tests 6m14s -->
|
|---|
| 166 | ./mkfs-tests.sh <!-- 20 tests 2m48s -->
|
|---|
| 167 | ./cli-tests.sh <!-- 12 tests 0m51s -->
|
|---|
| 168 | ./convert-tests.sh <!-- 16 tests 13m36s -->
|
|---|
| 169 | ./misc-tests.sh <!-- 38 tests 3m18s -->
|
|---|
| 170 | ./fuzz-tests.sh <!-- 8 tests 1m11s -->
|
|---|
| 171 | popd</userinput></screen>
|
|---|
| 172 |
|
|---|
| 173 | <para>
|
|---|
| 174 | Install the package as the <systemitem
|
|---|
| 175 | class="username">root</systemitem> user:
|
|---|
| 176 | </para>
|
|---|
| 177 |
|
|---|
| 178 | <screen role="root"><userinput>make install &&
|
|---|
| 179 |
|
|---|
| 180 | ln -sfv ../../lib/$(readlink /lib/libbtrfs.so) /usr/lib/libbtrfs.so &&
|
|---|
| 181 | ln -sfv ../../lib/$(readlink /lib/libbtrfsutil.so) /usr/lib/libbtrfsutil.so &&
|
|---|
| 182 | rm -fv /lib/libbtrfs.{a,so} /lib/libbtrfsutil.{a,so} &&
|
|---|
| 183 | mv -v /bin/{mkfs,fsck}.btrfs /sbin</userinput></screen>
|
|---|
| 184 |
|
|---|
| 185 | </sect2>
|
|---|
| 186 |
|
|---|
| 187 | <sect2 role="commands">
|
|---|
| 188 | <title>Command Explanations</title>
|
|---|
| 189 |
|
|---|
| 190 | <para>
|
|---|
| 191 | <option>--disable-documentation</option>: This option
|
|---|
| 192 | is needed if the recommended dependencies are not installed.
|
|---|
| 193 | </para>
|
|---|
| 194 |
|
|---|
| 195 | <para>
|
|---|
| 196 | <command>mv tests/{cli,convert,misc,fuzz}-tests/ ...</command>: Disables
|
|---|
| 197 | tests that fail and prevent tests from completing.
|
|---|
| 198 | </para>
|
|---|
| 199 |
|
|---|
| 200 | <para>
|
|---|
| 201 | <command>ln -s ... /usr/lib/libbtrfs.so</command>: Creates a
|
|---|
| 202 | symbolic link in the directory where it is expected.
|
|---|
| 203 | </para>
|
|---|
| 204 |
|
|---|
| 205 | <para>
|
|---|
| 206 | <command>rm /lib/libbtrfs.{a,so}</command>: Removes unneeded
|
|---|
| 207 | library entries.
|
|---|
| 208 | </para>
|
|---|
| 209 |
|
|---|
| 210 | </sect2>
|
|---|
| 211 |
|
|---|
| 212 | <sect2 role="content">
|
|---|
| 213 | <title>Contents</title>
|
|---|
| 214 |
|
|---|
| 215 | <segmentedlist>
|
|---|
| 216 | <segtitle>Installed Programs</segtitle>
|
|---|
| 217 | <segtitle>Installed Libraries</segtitle>
|
|---|
| 218 | <segtitle>Installed Directories</segtitle>
|
|---|
| 219 |
|
|---|
| 220 | <seglistitem>
|
|---|
| 221 | <seg>
|
|---|
| 222 | btrfs,
|
|---|
| 223 | btrfs-convert,
|
|---|
| 224 | btrfs-find-root,
|
|---|
| 225 | btrfs-image,
|
|---|
| 226 | btrfs-map-logical,
|
|---|
| 227 | btrfs-select-super,
|
|---|
| 228 | btrfsck (link to btrfs),
|
|---|
| 229 | btrfstune,
|
|---|
| 230 | fsck.btrfs, and
|
|---|
| 231 | mkfs.btrfs
|
|---|
| 232 | </seg>
|
|---|
| 233 |
|
|---|
| 234 | <seg>
|
|---|
| 235 | libbtrfs.so and
|
|---|
| 236 | libbtrfsutil.so
|
|---|
| 237 | </seg>
|
|---|
| 238 |
|
|---|
| 239 | <seg>/usr/include/btrfs</seg>
|
|---|
| 240 | </seglistitem>
|
|---|
| 241 | </segmentedlist>
|
|---|
| 242 |
|
|---|
| 243 | <variablelist>
|
|---|
| 244 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 245 | <?dbfo list-presentation="list"?>
|
|---|
| 246 | <?dbhtml list-presentation="table"?>
|
|---|
| 247 |
|
|---|
| 248 | <varlistentry id="btrfs-prog">
|
|---|
| 249 | <term><command>btrfs</command></term>
|
|---|
| 250 | <listitem>
|
|---|
| 251 | <para>
|
|---|
| 252 | is the main interface into btrfs filesystem operations.
|
|---|
| 253 | </para>
|
|---|
| 254 | <indexterm zone="btrfs-progs btrfs-prog">
|
|---|
| 255 | <primary sortas="b-btrfs">btrfs</primary>
|
|---|
| 256 | </indexterm>
|
|---|
| 257 | </listitem>
|
|---|
| 258 | </varlistentry>
|
|---|
| 259 |
|
|---|
| 260 | <varlistentry id="btrfs-convert">
|
|---|
| 261 | <term><command>btrfs-convert</command></term>
|
|---|
| 262 | <listitem>
|
|---|
| 263 | <para>
|
|---|
| 264 | converts from an ext2/3/4 filesystem to btrfs.
|
|---|
| 265 | </para>
|
|---|
| 266 | <indexterm zone="btrfs-progs btrfs-convert">
|
|---|
| 267 | <primary sortas="b-btrfs-convert">btrfs-convert</primary>
|
|---|
| 268 | </indexterm>
|
|---|
| 269 | </listitem>
|
|---|
| 270 | </varlistentry>
|
|---|
| 271 |
|
|---|
| 272 | <varlistentry id="btrfs-find-root">
|
|---|
| 273 | <term><command>btrfs-find-root</command></term>
|
|---|
| 274 | <listitem>
|
|---|
| 275 | <para>
|
|---|
| 276 | is a filter to find btrfs root.
|
|---|
| 277 | </para>
|
|---|
| 278 | <indexterm zone="btrfs-progs btrfs-find-root">
|
|---|
| 279 | <primary sortas="b-btrfs-find-root">btrfs-find-root</primary>
|
|---|
| 280 | </indexterm>
|
|---|
| 281 | </listitem>
|
|---|
| 282 | </varlistentry>
|
|---|
| 283 |
|
|---|
| 284 | <varlistentry id="btrfs-map-logical">
|
|---|
| 285 | <term><command>btrfs-map-logical</command></term>
|
|---|
| 286 | <listitem>
|
|---|
| 287 | <para>
|
|---|
| 288 | maps btrfs logical extent to physical extent.
|
|---|
| 289 | </para>
|
|---|
| 290 | <indexterm zone="btrfs-progs btrfs-map-logical">
|
|---|
| 291 | <primary sortas="b-btrfs-map-logical">btrfs-map-logical</primary>
|
|---|
| 292 | </indexterm>
|
|---|
| 293 | </listitem>
|
|---|
| 294 | </varlistentry>
|
|---|
| 295 |
|
|---|
| 296 | <varlistentry id="btrfs-select-super">
|
|---|
| 297 | <term><command>btrfs-select-super</command></term>
|
|---|
| 298 | <listitem>
|
|---|
| 299 | <para>
|
|---|
| 300 | overwrites the primary superblock with a backup copy.
|
|---|
| 301 | </para>
|
|---|
| 302 | <indexterm zone="btrfs-progs btrfs-select-super">
|
|---|
| 303 | <primary sortas="b-btrfs-select-super">btrfs-select-super</primary>
|
|---|
| 304 | </indexterm>
|
|---|
| 305 | </listitem>
|
|---|
| 306 | </varlistentry>
|
|---|
| 307 |
|
|---|
| 308 | <varlistentry id="btrfstune">
|
|---|
| 309 | <term><command>btrfstune</command></term>
|
|---|
| 310 | <listitem>
|
|---|
| 311 | <para>
|
|---|
| 312 | tunes various filesystem parameters.
|
|---|
| 313 | </para>
|
|---|
| 314 | <indexterm zone="btrfs-progs btrfstune">
|
|---|
| 315 | <primary sortas="b-btrfstune">btrfstune</primary>
|
|---|
| 316 | </indexterm>
|
|---|
| 317 | </listitem>
|
|---|
| 318 | </varlistentry>
|
|---|
| 319 |
|
|---|
| 320 | <varlistentry id="fsck.btrfs">
|
|---|
| 321 | <term><command>fsck.btrfs</command></term>
|
|---|
| 322 | <listitem>
|
|---|
| 323 | <para>
|
|---|
| 324 | does nothing, but is present for consistency with fstab.
|
|---|
| 325 | </para>
|
|---|
| 326 | <indexterm zone="btrfs-progs fsck.btrfs">
|
|---|
| 327 | <primary sortas="b-fsck.btrfs">fsck.btrfs</primary>
|
|---|
| 328 | </indexterm>
|
|---|
| 329 | </listitem>
|
|---|
| 330 | </varlistentry>
|
|---|
| 331 |
|
|---|
| 332 | <varlistentry id="mkfs.btrfs">
|
|---|
| 333 | <term><command>mkfs.btrfs</command></term>
|
|---|
| 334 | <listitem>
|
|---|
| 335 | <para>
|
|---|
| 336 | creates a btrfs file system.
|
|---|
| 337 | </para>
|
|---|
| 338 | <indexterm zone="btrfs-progs mkfs.btrfs">
|
|---|
| 339 | <primary sortas="b-mkfs.btrfs">mkfs.btrfs</primary>
|
|---|
| 340 | </indexterm>
|
|---|
| 341 | </listitem>
|
|---|
| 342 | </varlistentry>
|
|---|
| 343 |
|
|---|
| 344 | </variablelist>
|
|---|
| 345 |
|
|---|
| 346 | </sect2>
|
|---|
| 347 |
|
|---|
| 348 | </sect1>
|
|---|
