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Rüdiger Landmann
rlandmann at fedoraproject.org
Thu Oct 1 17:37:03 UTC 2009
Author: rlandmann
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Fedora Live images</title><link rel="stylesheet" href="./Common_Content/css/default.css" type="text/css"/><meta name="generator" content="publican"/><meta name="package" content=""/><meta name="description" content="How to use the Fedora Live Image"/></head><body class="draft "><div class="article" lang="en-US"><div class="titlepage"><div><div class="producttitle"><span class="productname">Fedora</span> <span class="productnumber">12</span></div><div><h1 id="d0e1" class="title">Fedora Live images</h1></div><div><h2 class="subtitle">How to use the Fedora Live Image</h2></div><div><h3 class="corpauthor">
<span class="inlinemediaobject"><img src="Common_Content/images/title_logo.png" alt="Logo"/></span>
</h3></div><div><div class="authorgroup"><div class="author"><h3 class="author"><span class="firstname">Nelson</span> <span class="surname">Strother</span></h3><code class="email"><a class="email" href="mailto:xunilarodef at gmail.com">xunilarodef at gmail.com</a></code></div><div class="author"><h3 class="author"><span class="firstname">Paul</span> <span class="othername">W.</span> <span class="surname">Frields</span></h3><code class="email"><a class="email" href="mailto:stickster at gmail.com">stickster at gmail.com</a></code></div></div></div><div><p class="copyright">Copyright © 2009 Red Hat, Inc. and others</p></div><div><div id="d0e42" class="legalnotice"><h1 class="legalnotice">Legal Notice</h1><div class="para">
Copyright <span class="trademark"/>© 2009 Red Hat, Inc. and others. This material may only be distributed subject to the terms and conditions set forth in the Open Publication License, V1.0, (the latest version is presently available at <a href="http://www.opencontent.org/openpub/">http://www.opencontent.org/openpub/</a>).
</div><div class="para">
Fedora and the Fedora Infinity Design logo are trademarks or registered trademarks of Red Hat, Inc., in the U.S. and other countries.
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Red Hat and the Red Hat "Shadow Man" logo are registered trademarks of Red Hat Inc. in the United States and other countries.
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All other trademarks and copyrights referred to are the property of their respective owners.
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Documentation, as with software itself, may be subject to export control. Read about Fedora Project export controls at <a href="http://fedoraproject.org/wiki/Legal/Export">http://fedoraproject.org/wiki/Legal/Export</a>.
</div></div></div><div><div class="abstract"><h6>Abstract</h6><div class="para">How to use the Fedora Live Image</div></div></div></div><hr/></div><div class="toc"><dl><dt><span class="section"><a href="#sect-Fedora_Live_images-Introduction">1. Introduction</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-What_Should_I_Do_With_My_Live_Image">2. What Should I Do With My Live Image?</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Suggested_Hardware">3. Suggested Hardware</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Booting">4. Booting</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Advantages">5. Advantages of a Live Image</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Disadvantages">6. Disadvantages of a Live Image</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Experimenting_with_the_Live_image">7. Experimenting
with the Live Image</a></span></dt><dd><dl><dt><span class="section"><a href="#sect-Fedora_Live_images-Experimenting_with_the_Live_Image-Accessing_Existing_Data">7.1. Accessing Existing Data</a></span></dt><dt><span class="section"><a href="#sect-Fedora_Live_images-Experimenting_with_the_Live_image-Making_a_Backup_Copy_of_Data">7.2. Making a Backup Copy of Data</a></span></dt></dl></dd><dt><span class="section"><a href="#sect-Fedora_Live_images-Installing_Fedora_from_the_Live_Image">8. Installing Fedora from the Live Image</a></span></dt><dt><span class="section"><a href="#d0e252">9. We Need Feedback!</a></span></dt><dt><span class="appendix"><a href="#appe-Fedora_Live_images-Revision_History">A. Revision History</a></span></dt></dl></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Introduction">1. Introduction</h2></div></div></div><div class="para">
A live image is a safe and easy way to test the Fedora operating system on your own familiar hardware. If you enjoy this experience, you can install the live system software to your system's hard drive. The installation can either replace your existing operating system, or co-exist separately on your hard drive. This live image provides you with an experience that is very similar to running Fedora, but there are some important differences. Refer to <a class="xref" href="#sect-Fedora_Live_images-Advantages" title="5. Advantages of a Live Image">Section 5, “Advantages of a Live Imageâ€</a> and <a class="xref" href="#sect-Fedora_Live_images-Disadvantages" title="6. Disadvantages of a Live Image">Section 6, “Disadvantages of a Live Imageâ€</a> for more information.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-What_Should_I_Do_With_My_Live_Image">2. What Should I Do With My Live Image?</h2></div></div></div><div class="para">
Before you use your Live image, read the next section to learn how to maximize your enjoyment of Fedora. You may also want to read <a class="xref" href="#sect-Fedora_Live_images-Booting" title="4. Booting">Section 4, “Bootingâ€</a> for hints on starting — or <em class="firstterm">booting</em> — from this media. Then insert this media in your computer and boot from it.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Suggested_Hardware">3. Suggested Hardware</h2></div></div></div><div class="para">
This live system successfully boots and runs on most computers with 256Â MB or more installed system memory, or RAM. Your computer must have the ability to boot from the device holding the live image media. For instance, if the live image is on a CD or DVD, your computer must be able to boot from the CD or DVD drive.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Booting">4. Booting</h2></div></div></div><div class="para">
To set up your system to boot from the live media, shut down or hibernate your computer. Power your computer on, and pay attention to the first screens that appear. Look for a prompt that indicates which key to use for either:
</div><div class="itemizedlist"><ul><li><div class="para">
a boot menu, or
</div></li><li><div class="para">
the <em class="firstterm">Basic Input–Output System</em> (BIOS) setup utility
</div></li></ul></div><div class="para">
The boot menu option is preferable. If no such prompt appears, consult your manufacturer's documentation for your computer system, motherboard, or mainboard for the correct keystroke. On many systems, the required key will be <span class="keycap"><strong>F12</strong></span>, <span class="keycap"><strong>F2</strong></span>, <span class="keycap"><strong>F1</strong></span>, <span class="keycap"><strong>Esc</strong></span>, or <span class="keycap"><strong>Delete</strong></span>.
</div><div class="para">
Most computers normally boot from a hard disk. If you have a Fedora live image on a CD or a DVD, then set the computer to boot from the DVD or CD drive. If you have a Fedora live image on a USB device such as a USB flash drive, set your computer to boot from the USB device.
</div><div class="para">
If you must make changes to the BIOS configuration, record the current boot device selection configuration before you change it. This record allows you to restore the original configuration if necessary.
</div><div class="para">
The BIOS on older computers might have a very limited range of boot options. If your computer can only boot from floppy diskette or hard disk, there is no practical way to boot from the Fedora live image. Sometimes, an updated BIOS is available from the manufacturer of your computer. A BIOS update might offer additional boot menu choices, but requires care to install properly. Consult the manufacturer's documentation for more information.
</div><div class="para">
Unless you choose to install Fedora from the live image to the computer's hard drive (as described in <a class="xref" href="#sect-Fedora_Live_images-Installing_Fedora_from_the_Live_Image" title="8. Installing Fedora from the Live Image">Section 8, “Installing Fedora from the Live Imageâ€</a>) the Fedora live image does not make any permanent changes to the computer on which you run it. If your own computer cannot boot from the live image, you can safely explore the live image on a newer computer to which you have access, without fear of changing that computer.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Advantages">5. Advantages of a Live Image</h2></div></div></div><div class="itemizedlist"><ul><li><div class="para">
While running this live image, you are in control. Unlike reading about Fedora in print or online, you are not limited to a set of screenshots or options chosen by others. Select which tasks or applications to explore with complete freedom.
</div></li><li><div class="para">
You can experiment with this live image with no disruption to your previous computing environment, documents, or desktop. Hibernate your current operating system, restart with the live image, and restart the original operating system when finished. Your previous environment returns with no changes made.
</div></li><li><div class="para">
You can use the live image to evaluate whether Fedora recognizes and properly configures your hardware devices.
</div><div class="important"><h2>Full Hardware Recognition</h2><div class="para">
In some cases, the live image might not offer the full range of hardware support offered by an installed Fedora system. You might be able to manually configure additional devices in the Live image. If you use the live image from a CD or DVD, you must repeat these steps each time you use the Live image.
</div></div></li><li><div class="para">
You can use the Live image to try different <em class="firstterm">desktop environments</em> such as GNOME, KDE, Xfce, or others. None of these choices require you to reconfigure an existing Linux installation on your computer. You can learn more about the various desktop environments in the <em class="citetitle">Fedora 12 User Guide</em>, available from <a href="docs.fedoraproject.org">docs.fedoraproject.org</a>.
</div></li><li><div class="para">
Live images on USB can include both a <em class="firstterm">persistence overlay</em> and a separate area for user data. The persistence overlay allows you to make changes to the Fedora live environment and retain these changes for the next time that you use the Fedora live image. These changes can include system software updates, configuration changes, and new programs you choose to install. The separate user data area allows you to reinstall the live image with a newer version of Fedora later, while retaining your documents, media files, and other important information.
</div></li></ul></div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Disadvantages">6. Disadvantages of a Live Image</h2></div></div></div><div class="itemizedlist"><ul><li><div class="para">
While using this live image on CD or DVD, your computer might be much slower to respond or require more time to complete tasks than with a system installed to hard disk. CD and DVD discs provide data to the computer at a much slower rate than hard disks do. Less of your computer's system memory is available for loading and running applications. Running the live image from RAM trades higher memory usage for faster response times.
</div></li><li><div class="para">
Due to space constraints, fewer programs are included than in a full installation of Fedora. Your favorite applications may not be present in this live image, even though they may be present and run quite well in a full installation of Fedora.
</div><div class="important"><h2>Live USB persistence</h2><div class="para">
Live USB images with persistence allow you to install new applications on your Fedora system. There is a limit to the space available for new applications. If you decide to make many changes to the software installed, install Fedora to a hard disk first.
</div></div></li><li><div class="para">
You cannot permanently install new applications in the live image on CD or DVD. To try other applications, or newer versions of existing applications, you must either use a live USB image with persistence, or install Fedora on your computer. You might be able to temporarily install or update applications, however, if you have sufficient system memory. Most systems require more than 512Â MB of RAM for installations or updates to succeed. These changes will be lost when you shut down the live image.
</div></li><li><div class="para">
Changes may also evaporate if your system's memory usage forces the system to reread the original software or settings from the Live image on CD or DVD. This behavior is peculiar to a Live CD or DVD image and does not occur in a full installation of Fedora.
</div></li></ul></div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Experimenting_with_the_Live_image">7. Experimenting with the Live Image</h2></div></div></div><div class="para">
Explore the icons and menus on and around the desktop to find programs that interest you. In addition, you may wish to explore other capabilities.
</div><div class="section" lang="en-US"><div class="titlepage"><div><div><h3 class="title" id="sect-Fedora_Live_images-Experimenting_with_the_Live_Image-Accessing_Existing_Data">7.1. Accessing Existing Data</h3></div></div></div><div class="para">
The live system can access existing data stored on:
</div><div class="itemizedlist"><ul><li><div class="para">
floppy diskettes
</div></li><li><div class="para">
USB drives
</div></li><li><div class="para">
disk partitions
</div></li></ul></div><div class="para">
You can therefore test how Fedora interacts with your documents, photographs, and multimedia files, and how files created by programs running in the Fedora live environment work when you transfer them to your existing computing environment.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h3 class="title" id="sect-Fedora_Live_images-Experimenting_with_the_Live_image-Making_a_Backup_Copy_of_Data">7.2. Making a Backup Copy of Data</h3></div></div></div><div class="para">
You can use the live image to make backup or archival copies of data, if your computer system includes:
</div><div class="itemizedlist"><ul><li><div class="para">
a CD or DVD burning drive
</div></li><li><div class="para">
a hard disk with ample free space
</div></li></ul></div><div class="para">
Files normally in use by your previous operating system when it is running are not in use in the Live image. Therefore, you can use the live image to copy files that are problematic for backup software in the previous operating system.
</div></div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="sect-Fedora_Live_images-Installing_Fedora_from_the_Live_Image">8. Installing Fedora from the Live Image</h2></div></div></div><div class="para">
To install Fedora from this live image, select the <span class="emphasis"><em>Install to Hard Disk</em></span> application on the Desktop. After you install Fedora, you can customize the software and configuration to your liking on a persistent basis. Although the live image itself only offers a small fraction of the software available for Fedora, this limitation no longer applies once you install Fedora to a computer.
</div><div class="para">
The <em class="citetitle">Fedora 12 Installation Quick Start Guide</em>, available from <a href="docs.fedoraproject.org">docs.fedoraproject.org</a>, provides step-by-step instructions to use a live image to install Fedora on typical desktop and laptop computers.
</div></div><div class="section" lang="en-US"><div class="titlepage"><div><div><h2 class="title" id="d0e252">9. We Need Feedback!</h2></div></div></div><a id="d0e255" class="indexterm"/><div class="para">
If you find a typographical error in this manual, or if you have thought of a way to make this manual better, we would love to hear from you! Please submit a report in Bugzilla: <a href="http://bugzilla.redhat.com/bugzilla/">http://bugzilla.redhat.com/bugzilla/</a>
against the product <span class="application"><strong>Fedora Documentation.</strong></span>
</div><div class="para">
When submitting a bug report, be sure to mention the manual's identifier: <em class="citetitle">readme-live-images</em>
</div><div class="para">
If you have a suggestion for improving the documentation, try to be as specific as possible when describing it. If you have found an error, please include the section number and some of the surrounding text so we can find it easily.
</div></div><div class="appendix" lang="en-US"><h2 class="title" id="appe-Fedora_Live_images-Revision_History">A. Revision History</h2><div class="para">
<div class="revhistory"><table border="0" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="3"><b>Revision History</b></th></tr><tr><td align="left">Revision 12.1.1</td><td align="left">Thu Oct 01 2009</td><td align="left"><span class="author"><span class="firstname">Rüdiger</span> <span class="surname">Landmann</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Update for Fedora 12, plus editorial revision.</td></tr></table>
</td></tr><tr><td align="left">Revision 11.2.0</td><td align="left">Sun Aug 09 2009</td><td align="left"><span class="author"><span class="firstname">Paul</span> <span class="othername">W.</span> <span class="surname">Frields</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Add information about USB persistence</td></tr><tr><td>Correct some character entities</td></tr></table>
</td></tr><tr><td align="left">Revision 11.1.0</td><td align="left">Mon Jul 21 2009</td><td align="left"><span class="author"><span class="firstname">Rüdiger</span> <span class="surname">Landmann</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Convert to build in Publican</td></tr></table>
</td></tr><tr><td align="left">Revision 11.0.0</td><td align="left">Fri May 08 2009</td><td align="left"><span class="author"><span class="firstname">John</span> <span class="othername">J.</span> <span class="surname">McDonough</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Update for Fedora 11</td></tr></table>
</td></tr><tr><td align="left">Revision 10.93.0</td><td align="left">Mon Apr 20 2009</td><td align="left"><span class="author"><span class="firstname">John</span> <span class="othername">J.</span> <span class="surname">McDonough</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Update for Fedora 10.93</td></tr></table>
</td></tr><tr><td align="left">Revision 10.0.0</td><td align="left">Fri Nov 07 2008</td><td align="left"><span class="author"><span class="firstname">Karsten</span> <span class="surname">Wade</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Update for Fedora 10</td></tr></table>
</td></tr><tr><td align="left">Revision 9.92</td><td align="left">Sat 19 July 2008</td><td align="left"><span class="author"><span class="firstname">Paul</span> <span class="othername">W.</span> <span class="surname">Frields</span></span></td></tr><tr><td align="left" colspan="3">
<table class="simplelist" border="0" summary="Simple list"><tr><td>Update for Fedora 9.92</td></tr></table>
</td></tr></table></div>
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