110 lines
3.3 KiB
XML
110 lines
3.3 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<refentry id='sulogin.8'>
|
|
<!-- $Id$ -->
|
|
<refmeta>
|
|
<refentrytitle>sulogin</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
<refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
|
|
</refmeta>
|
|
<refnamediv id='name'>
|
|
<refname>sulogin</refname>
|
|
<refpurpose>Single-user login</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsect1 id='syntax'>
|
|
<title>SYNTAX</title>
|
|
<para><command>sulogin</command> [<emphasis remap='I'>tty-device</emphasis>]
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 id='description'>
|
|
<title>DESCRIPTION</title>
|
|
<para>
|
|
The <command>sulogin</command> command is invoked by <command>init</command>
|
|
prior to allowing the user access to the system when in single user mode.
|
|
This feature may only be available on certain systems where
|
|
<command>init</command> has been modified accordingly, or where the
|
|
<filename>/etc/inittab</filename> has an entry for a single user
|
|
login.
|
|
</para>
|
|
|
|
<para>The user is prompted</para>
|
|
|
|
<para>Type control-d to proceed with normal startup,
|
|
<!-- .br -->
|
|
(or give root password for system maintenance):
|
|
</para>
|
|
|
|
<para>
|
|
Input and output will be performed with the standard file descriptors
|
|
unless the optional device name argument is provided.
|
|
</para>
|
|
|
|
<para>
|
|
If the user enters the correct root password, a login session is
|
|
initiated. When <emphasis>EOF</emphasis> is pressed instead, the
|
|
system enters multi-user mode.
|
|
</para>
|
|
|
|
<para>
|
|
After the user exits the single-user shell, or presses
|
|
<emphasis>EOF</emphasis>, the system begins the initialization process
|
|
required to enter multi-user mode.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 id='caveats'>
|
|
<title>CAVEATS</title>
|
|
<para>
|
|
This command can only be used if <command>init</command> has been
|
|
modified to call <command>sulogin</command> instead of
|
|
<filename>/bin/sh</filename>, or if the user has set the <emphasis
|
|
remap='I'>inittab</emphasis> to support a single user login. For
|
|
example, the line:
|
|
</para>
|
|
|
|
<para>co:s:respawn:/etc/sulogin /dev/console</para>
|
|
|
|
<para>should execute the sulogin command in single user mode.</para>
|
|
|
|
<para>
|
|
As complete an environment as possible is created. However, various
|
|
devices may be unmounted or uninitialized and many of the user
|
|
commands may be unavailable or nonfunctional as a result.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 id='files'>
|
|
<title>FILES</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><filename>/etc/passwd</filename></term>
|
|
<listitem>
|
|
<para>User account information.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><filename>/etc/shadow</filename></term>
|
|
<listitem>
|
|
<para>Secure user account information.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1 id='see_also'>
|
|
<title>SEE ALSO</title>
|
|
<para>
|
|
<citerefentry>
|
|
<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
|
|
</citerefentry>,
|
|
<citerefentry>
|
|
<refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
|
|
</citerefentry>,
|
|
<citerefentry>
|
|
<refentrytitle>init</refentrytitle><manvolnum>8</manvolnum>
|
|
</citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|