source: postlfs/filesystems/ext3.xml@ 0290a023

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Last change on this file since 0290a023 was 5cd0959d, checked in by Archaic <archaic@…>, 18 years ago

Resetting keywords

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2592 af4574ff-66df-0310-9fd7-8a98e5e911e0

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
3 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="postlfs-filesystems-ext3">
9<sect1info>
10<othername>$LastChangedBy$</othername>
11<date>$Date$</date>
12</sect1info>
13<?dbhtml filename="ext3.html"?>
14<title>Ext3</title>
15
16<para>Ext3 is a journaling file system that is an extension to the ext2
17file system. It is backward compatible with ext2 and the conversion from ext2
18to ext3 is trivial.</para>
19
20<para>You don't need to install anything to use ext3, all the required
21packages are available with a bare <acronym>LFS</acronym> system.</para>
22
23<para>When building the kernel, ensure that you have compiled in ext3
24support. If you want your root partition to be ext3, then compile the ext3
25support in the kernel, else you may compile it as a module. Recompile the
26kernel if needed.</para>
27
28<para>Edit your <filename>/etc/fstab</filename>. For each partition that you
29want to convert into ext3, edit the entry so that it looks similar to the
30following line.</para>
31
32<screen>/dev/hd<replaceable>XX</replaceable> /mnt_point ext3 defaults 1 0</screen>
33
34<para>In the above line, replace
35<filename>/dev/hd<replaceable>XX</replaceable></filename> by the
36partition (e.g., <filename>/dev/hda2</filename>),
37<filename class="directory">/mnt_point</filename> by the mount point (e.g.,
38<filename class="directory">/home</filename>). The <option>0</option> in the
39last field ensures that the partition will not be checked for
40consistency during the boot process by the <command>checkfs</command> script.
41You may replace the <option>ext3</option> fs type in the above by
42<option>auto</option> if you want to ensure that the partition is mounted
43if you accidentally skip enabling the ext3 support in the kernel.</para>
44
45<para>For each partition that you have converted to ext3 in <filename>
46/etc/fstab</filename>, enable the journal for the partition by running the
47following command.</para>
48
49<screen><userinput><command>tune2fs -j /dev/hd<replaceable>XX</replaceable></command></userinput></screen>
50
51<para>Remount the concerned partitions, or simply reboot if you have
52recompiled the kernel to enable ext3 support.</para>
53
54<para>More information is available at <ulink
55url="http://www.zip.com.au/~akpm/linux/ext3/ext3-usage.html"/>.</para>
56
57</sect1>
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