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6732c09460
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@6716 af4574ff-66df-0310-9fd7-8a98e5e911e0
62 lines
2.6 KiB
XML
62 lines
2.6 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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]>
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<sect1 id="postlfs-filesystems-ext3">
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<?dbhtml filename="ext3.html"?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<title>Ext3</title>
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<para>Ext3 is a journaling file system that is an extension to the ext2
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file system. It is backward compatible with ext2 and the conversion from
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ext2 to ext3 is trivial.</para>
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<para>You don't need to install anything to use ext3, all the required
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packages are available with a bare LFS system.</para>
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<para>When building the kernel, ensure that you have compiled in ext3
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support. If you want your root partition to be ext3, then compile the ext3
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support in the kernel, else you may compile it as a module. Recompile the
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kernel if needed.</para>
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<para>Edit your <filename>/etc/fstab</filename>. For each partition that you
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want to convert into ext3, edit the entry so that it looks similar to the
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following line.</para>
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<screen><literal>/dev/hd<replaceable><XX></replaceable> /mnt_point ext3 defaults 1 1</literal></screen>
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<para>In the above line, replace
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<filename>/dev/hd<replaceable><XX></replaceable></filename> by the
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partition (e.g., <filename>/dev/hda2</filename>),
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<filename class="directory">/mnt_point</filename> by the mount point (e.g.,
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<filename class="directory">/home</filename>). The <option>1</option> in the
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last field ensures that the partition will be checked for
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consistency during the boot process by the <command>checkfs</command> script
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as recommended by the maintainer.
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You may replace the <option>ext3</option> fs type in the above by
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<option>auto</option> if you want to ensure that the partition is mounted
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even if you accidentally disable ext3 support in the kernel.</para>
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<para>For each partition that you have converted to ext3 in <filename>
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/etc/fstab</filename>, enable the journal for the partition by running the
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following command.</para>
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<screen role="root"><userinput>tune2fs -j /dev/hd<replaceable><XX></replaceable></userinput></screen>
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<para>Remount the concerned partitions, or simply reboot if you have
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recompiled the kernel to enable ext3 support.</para>
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<para>More information is available at <ulink
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url="http://www.zip.com.au/~akpm/linux/ext3/ext3-usage.html"/>. This
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information is still relevant to the 2.6 kernels.</para>
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</sect1>
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