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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-partitioning-creatingfilesystem">
<?dbhtml filename="creatingfilesystem.html"?>
<title>Creating a File System on the Partition</title>
<para>Now that a blank partition has been set up, the file system can be
created. LFS can use any file system recognized by the Linux kernel, but the
most common types are ext3 and ext4. The choice of file system can be
complex and depends on the characteristics of the files and the size of
the partition. For example:</para>
<variablelist>
<varlistentry>
<term>ext2</term>
<listitem><para>is suitable for small partitions that are updated infrequently
such as /boot.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ext3</term>
<listitem><para>is an upgrade to ext2 that includes a journal
to help recover the partition's status in the case of an unclean
shutdown. It is commonly used as a general purpose file system.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ext4</term>
<listitem><para>is the latest version of the ext file system family of
partition types. It provides several new capabilities including
nano-second timestamps, creation and use of very large files (16 TB), and
speed improvements.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Other file systems, including FAT32, NTFS, ReiserFS, JFS, and XFS are
useful for specialized purposes. More information about these file systems
can be found at <ulink
url="http://en.wikipedia.org/wiki/Comparison_of_file_systems"/>.</para>
<para>LFS assumes that the root file system (/) is of type ext4. To create
an <systemitem class="filesystem">ext4</systemitem> file system on the LFS
partition, run the following:</para>
<screen role="nodump"><userinput>mkfs -v -t ext4 /dev/<replaceable><xxx></replaceable></userinput></screen>
<para>Replace <replaceable><xxx></replaceable> with the name of the LFS
partition.</para>
<para>If you are using an existing <systemitem class="filesystem">swap
</systemitem> partition, there is no need to format it. If a new
<systemitem class="filesystem"> swap</systemitem> partition was created,
it will need to be initialized with this command:</para>
<screen role="nodump"><userinput>mkswap /dev/<replaceable><yyy></replaceable></userinput></screen>
<para>Replace <replaceable><yyy></replaceable> with the name of the
<systemitem class="filesystem">swap</systemitem> partition.</para>
</sect1>
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