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1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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4 <head>
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5 <title>SliTaz Scratchbook</title>
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6 <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
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7 <meta name="description" content="" />
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8 <meta name="expires" content="never" />
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9 <meta name="modified" content="2008-11-22 17:00:00" />
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10 <meta name="publisher" content="www.slitaz.org" />
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11 <meta name="author" content="Christophe Lincoln"/>
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12 <link rel="shortcut icon" href="favicon.ico" />
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13 <link rel="stylesheet" type="text/css" href="book.css" />
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14 </head>
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15 <body bgcolor="#ffffff">
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16
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17 <!-- Header and quick navigation -->
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18 <div id="header">
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19 <div align="right" id="quicknav">
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20 <a name="top"></a>
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21 <a href="../index.html">SliTaz doc</a>
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22 </div>
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23 <h1><font color="#3E1220">SliTaz Scratchbook</font></h1>
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24 </div>
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25
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26 <!-- Content. -->
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27 <div id="content">
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28 <div class="content-right"></div>
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29
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30
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31 <h2><font color="#df8f06">Scratchbook</font></h2>
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32 <p>
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33 Index of documents, step by step construction of a mini GNU/LINUX
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34 LiveCD and installation instructions.
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35 </p>
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36 <h3><font color="#6c0023">Table of contents</font></h3>
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37 <h4>LiveCD</h4>
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38 <ul>
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39 <li><a href="#intro">Introduction.</a></li>
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40 <li><a href="#org">Organize a working directory.</a></li>
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41 <li><a href="base-system.html">Construction of the base SliTaz system.</a></li>
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42 </ul>
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43
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44 <a name="intro"></a>
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45 <h3><font color="#6c0023">Introduction</font></h3>
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46 <p>
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47 The scratchbook allows you to track the creation of the first public
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48 release of SliTaz and make a trip to the heart of GNU/LINUX. You'll
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49 be able to customize your new system or create your own autonomous
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50 distro running in system memory (RAM) that's fully installable on
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51 a hard drive or USB key. Once started you'll be able to remove the
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52 CD-ROM and still have SliTaz working. SliTaz can also be used as an
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53 environment in which we can chroot or use the cdrom for multitasking.
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54 The only prerequisite is a host distribution in which you can store
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55 libraries, use a compiler and development tools, etc. The host
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56 system can be a chrooted development environment, a minimal
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57 distro, SliTaz installed on a hard drive or a 'general' distro such
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58 as Debian, Slackware, Fedora, Gentoo, Mandriva, Arch, etc. Note
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59 that nothing is installed in the host system by our commands.
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60 </p>
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61 <p>
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62 SliTaz uses the 'Swiss Army Knife' BusyBox as the basis of the system and
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63 the Linux Kernel, it runs embedded using a small memory footprint and
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64 provides many files. BusyBox is our main source of information
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65 and it's a utility of the Debian project which we use and cherish.
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66 </p>
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67 <p>
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68 SliTaz uses the Syslinux bootloader and an archived initramfs
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69 compressed with cpio. This archive is then decompressed in memory
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70 at boot by the kernel into a system of no fixed size, retaining
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71 control over init. At the time of compilation or copying of
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72 applications, we use strip to clean the repositoiries. The system commands
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73 genisoimage or mkisofs are used to create the iso images. To
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74 finish, you can test the iso image with Qemu or engrave the
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75 generated iso on to a rewritable cdrom.
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76 </p>
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77 <a name="org"></a>
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78 <h3><font color="#6c0023">Organize a working directory</font></h3>
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79 <p>
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80 To create SliTaz, we need a working directory and several subdirectories
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81 Whether you have a chrooted environment for developing or a host
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82 system, we advise to use a directory named distro/ in which to
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83 work. The distro/ directory can be a simple folder or a partition,
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84 but you are obviously free to put all of this elsewhere.
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85 </p>
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86 <h4>distro/</h4>
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87 <p>Contents of a working directory:
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88 </p>
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89 <ul>
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90 <li>rootfs/ --> The root filesystem - this is the root system, designed
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91 to operate in RAM, it is used to generate the initramfs image.</li>
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92 <li>rootfs.gz --> The initramfs image of our system - a cpio
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93 archive compressed with gzip.</li>
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94 <li>rootcd/ --> The rootcd. This is the root of the cdrom files.</li>
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95 <li>src/ --> The sources, Kernel, Syslinux, Busybox, Dropbear,
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96 etc (it can also be a symbolic link).</li>
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97 </ul>
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98 <p>
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99 Thereafter, the initramfs and bootable ISO image (slitaz-cooking.iso)
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100 will be created in the root directory of our work named SliTaz/.
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101 </p>
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102 <h4>Option: rootfs.ext2 - using a virtual hard drive</h4>
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103 <p>
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104 Option: rootfs.ext2 (root filesystem in ext2) is a virtual hard disk
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105 formatted with ext2 and mounted on a (rootfs) loop. A device loop allows
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106 a file to be used as a standard device (hard drive, floppy, etc) to build
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107 a filesystem inside. This file can be any number of megabytes, we propose
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108 20,480, which corresponds to 20MB:
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109 </p>
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110 <pre> # dd if=/dev/zero of=rootfs.ext2 bs=1k count=20480
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111 </pre>
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112 <p>
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113 Create a ext2 filesystem named rootfs.ext2, the option -F formats the
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114 file. Note that the -m 0 option doesn't allocate any space for the user
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115 root - by default it occupies approximately 5% and the -t option defines
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116 the type of filesystem to be used, such as ext2 or ext3:
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117 </p>
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118 <pre> # mkfs -t ext2 -F -m 0 rootfs.ext2
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119 </pre>
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120 <p>
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121 We can now assemble rootfs.ext2 with a loop, thanks to the -o loop option
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122 provided by the mount utility in the rootfs/ directory. You can check if
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123 the assembly went well with the <code>df-h</code> command:
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124 </p>
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125 <pre> # mkdir rootfs
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126 # mount -o loop rootfs.ext2 rootfs
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127 # df -h
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128 </pre>
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129 <p>
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130 At the end of the session, you can dismount the volume with umount:
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131 </p>
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132 <pre> # umount rootfs
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133 </pre>
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134 <p>
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135 Now we can proceed to the construction of the <a href="base-system.html">base SliTaz system</a>.
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136 </p>
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137
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138 <!-- End of content -->
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139 </div>
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140
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141 <!-- Footer. -->
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142 <div id="footer">
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143 <div class="footer-right"></div>
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144 <a href="#top">Top of the page</a> |
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145 <a href="index.html">Table of contents</a>
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146 </div>
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147
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148 <div id="copy">
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149 Copyright © 2008 <a href="http://www.slitaz.org/en/">SliTaz</a> -
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150 <a href="http://www.gnu.org/licenses/gpl.html">GNU General Public License</a>;<br />
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151 Documentation is under
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152 <a href="http://www.gnu.org/copyleft/fdl.html">GNU Free Documentation License</a>
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153 and code is <a href="http://validator.w3.org/">valid xHTML 1.0</a>.
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154 </div>
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155
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156 </body>
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157 </html>
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