/[gentoo]/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml
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1<?xml version='1.0' encoding="UTF-8"?> 1<?xml version='1.0' encoding="UTF-8"?>
2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml,v 1.7 2011/08/22 17:18:23 swift Exp $ --> 2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-filesystems.xml,v 1.8 2011/09/04 14:34:01 swift Exp $ -->
3<!DOCTYPE included SYSTEM "/dtd/guide.dtd"> 3<!DOCTYPE included SYSTEM "/dtd/guide.dtd">
4 4
5<included> 5<included>
6 6
7<version>5</version> 7<version>6</version>
8<date>2011-08-22</date> 8<date>2011-09-04</date>
9 9
10<section id="filesystemsdesc"> 10<section id="filesystemsdesc">
11<title>Filesystems</title> 11<title>Filesystems</title>
12<body> 12<body>
13 13
17systems. 17systems.
18</p> 18</p>
19 19
20<p test="func:keyval('arch')='IA64'"> 20<p test="func:keyval('arch')='IA64'">
21The Linux kernel supports various filesystems. We'll explain vfat, ext2, ext3, 21The Linux kernel supports various filesystems. We'll explain vfat, ext2, ext3,
22ReiserFS, XFS and JFS as these are the most commonly used filesystems on Linux 22ext4, ReiserFS, XFS and JFS as these are the most commonly used filesystems on
23systems. 23Linux systems.
24</p> 24</p>
25 25
26<p test="func:keyval('arch')='AMD64'"> 26<p test="func:keyval('arch')='AMD64'">
27Several filesystems are available. Some of them are found stable on the amd64 27Several filesystems are available. Some of them are found stable on the amd64
28architecture, others aren't. The following filesystems are found to be stable: 28architecture, others aren't. The following filesystems are found to be stable:
30you're really adventurous you can try the other filesystems. 30you're really adventurous you can try the other filesystems.
31</p> 31</p>
32 32
33<p test="func:keyval('arch')='arm'"> 33<p test="func:keyval('arch')='arm'">
34Several filesystems are available. Some of them are found stable on the arm 34Several filesystems are available. Some of them are found stable on the arm
35architecture, others aren't. ext2 and ext3 are found to be stable. JFS, XFS and 35architecture, others aren't. ext2, ext3 and ext4 are found to be stable. JFS,
36ReiserFS may work but need more testing. If you're really adventurous you can 36XFS and ReiserFS may work but need more testing. If you're really adventurous
37try the other filesystems. 37you can try the other filesystems.
38</p> 38</p>
39 39
40<p test="func:keyval('arch')='HPPA'"> 40<p test="func:keyval('arch')='HPPA'">
41Several filesystems are available. Ext2, ext3, XFS and reiserfs are found 41Several filesystems are available. Ext2, ext3, XFS and reiserfs are found
42stable on the HPPA architecture. The others are very experimental. 42stable on the HPPA architecture. The others are very experimental.
58modules. 58modules.
59</note> 59</note>
60 60
61<p test="func:keyval('arch')='SPARC'"> 61<p test="func:keyval('arch')='SPARC'">
62Several filesystems are available, some are known to be stable on the 62Several filesystems are available, some are known to be stable on the
63SPARC architecture. Ext2 and ext3, for example, are known to work well. 63SPARC architecture. Ext2, ext3 and ext4, for example, are known to work well.
64Alternate filesystems may not function correctly. 64Alternate filesystems may not function correctly.
65</p> 65</p>
66 66
67<note test="func:keyval('arch')='Alpha'"> 67<note test="func:keyval('arch')='Alpha'">
68<c>aboot</c> only supports booting from <b>ext2</b> and <b>ext3</b> 68<c>aboot</c> only supports booting from <b>ext2</b> and <b>ext3</b>
101filesystem. If you intend to install Gentoo on a very small disk (less than 101filesystem. If you intend to install Gentoo on a very small disk (less than
1024GB), then you'll need to tell ext3 to reserve enough inodes when you create the 1024GB), then you'll need to tell ext3 to reserve enough inodes when you create the
103filesystem by running <c>mke2fs -j -T small /dev/&lt;device&gt;</c>. 103filesystem by running <c>mke2fs -j -T small /dev/&lt;device&gt;</c>.
104</p> 104</p>
105 105
106<p test="contains('x86 Alpha MIPS AMD64',func:keyval('arch'))"> 106<p test="contains('x86 Alpha MIPS AMD64 arm IA64 SPARC',func:keyval('arch'))">
107<b>ext4</b> is a filesystem created as a fork of ext3 bringing new features, 107<b>ext4</b> is a filesystem created as a fork of ext3 bringing new features,
108performance improvements and removal of size limits with moderate changes 108performance improvements and removal of size limits with moderate changes
109to the on-disk format. It can span volumes up to 1 EB and with maximum file 109to the on-disk format. It can span volumes up to 1 EB and with maximum file
110size of 16 TB. Instead of the classic ext2/3 bitmap block allocation ext4 uses 110size of 16 TB. Instead of the classic ext2/3 bitmap block allocation ext4 uses
111<uri link="http://en.wikipedia.org/wiki/Extent_%28file_systems%29">extents</uri>, 111<uri link="http://en.wikipedia.org/wiki/Extent_%28file_systems%29">extents</uri>,

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