txt/html/syslinux-cli.html

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<body class="manpage">
<div id="header">
<h1>
syslinux-cli(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>syslinux-cli -
   *Syslinux* boot prompt/command line interface
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p><strong>Syslinux</strong>'s boot prompt provides a very simplistic command line
interface for loading modules and booting kernels.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_boot_prompt">BOOT PROMPT</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_command_line_keystrokes">COMMAND LINE KEYSTROKES</h3>
<div class="paragraph"><p>The command line prompt supports the following keystrokes:</p></div>
<div class="literalblock">
<div class="content">
<pre><code>&lt;Enter&gt;               boot specified command line
&lt;BackSpace&gt;           erase one character
&lt;Ctrl-U&gt;              erase the whole line
&lt;Ctrl-V&gt;              display the current Syslinux version
&lt;Ctrl-W&gt;              erase one word
&lt;Ctrl-X&gt;              force text mode
&lt;Tab&gt;                 list matching labels
&lt;F1&gt;..&lt;F12&gt;           help screens (if configured)
&lt;Ctrl-F&gt;&lt;digit&gt;       equivalent to F1..F10
&lt;Ctrl-C&gt;              interrupt boot in progress
&lt;Esc&gt;                 interrupt boot in progress
&lt;Ctrl-N&gt;              display network information (PXELINUX only; 3.50-4.06)</code></pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_working_directory">WORKING DIRECTORY</h3>
<div class="paragraph"><p>At start, the initial working directory for <strong>SYSLINUX</strong>/<strong>ISOLINUX</strong> will
be the directory containing the initial configuration file.  If no
configuration file is found, <strong>SYSLINUX</strong> should default to the
install-time working directory, however this is a known issue with some
versions including 4.06.</p></div>
<div class="paragraph"><p>At start, the initial working directory for <strong>PXELINUX</strong> will be the
parent directory of pxelinux.0 unless overridden with DHCP option 210.
If no configuration file is found, <strong>PXELINUX</strong> will start a timer to
reboot the system in an attempt to restart the boot process and resolve
a possible transient issue.</p></div>
</div>
<div class="sect2">
<h3 id="_alternate_filenames">ALTERNATE FILENAMES</h3>
<div class="paragraph"><p>For kernel-like file names given on the command line, <strong>Syslinux</strong> will
attempt to append file name extensions to the specified file name when
the file is not found in the following order: .0[<strong>PXELINUX</strong> only],
.bin[<strong>ISOLINUX</strong> only], .bs[<strong>SYSLINUX</strong> only], .bss[<strong>SYSLINUX</strong> only],
.c32, .cbt[Up to 4.06], .com[Up to 4.06] and .img[<strong>ISOLINUX</strong> 1.65-4.04 only].</p></div>
</div>
<div class="sect2">
<h3 id="_path_rules">PATH RULES</h3>
<div class="paragraph"><p>The current working directory is <strong>always</strong> searched first, before PATH,
when attempting to open a filename. The current working directory is
not affected when specifying a file with an absolute path. For
example, given the following file system layout,</p></div>
<div class="literalblock">
<div class="content">
<pre><code>/boot/
        /bin/
                ls.c32
                libls.c32
        /foo/
                libls.c32</code></pre>
</div></div>
<div class="paragraph"><p>assuming that the current working directory is /boot/foo, and assuming
that libls.c32 is a dependency of ls.c32, executing /boot/bin/ls.c32
will cause /boot/foo/libls.c32 to be loaded, not /boot/bin/libls.c32,
even if /boot/bin is specified in the PATH directive of a config file.</p></div>
<div class="paragraph"><p>The reason that things work this way is that typically a user will
install all library files in the Syslinux installation directory, as
specified with the --directory installer option. This method allows
the user to omit the PATH directive from their config file and still
have things work correctly.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_author">AUTHOR</h2>
<div class="sectionbody">
<div class="paragraph"><p>This AsciiDoc derived document is a modified version of the original
<strong>SYSLINUX</strong> documentation by H. Peter Anvin &lt;<a href="mailto:hpa@zytor.com">hpa@zytor.com</a>&gt;.  The conversion
to an AsciiDoc was made by Gene Cumm &lt;<a href="mailto:gene.cumm@gmail.com">gene.cumm@gmail.com</a>&gt;</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2014-01-17 16:09:56 PST
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