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Diffstat (limited to 'man/sulogin.8.xml')
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1 files changed, 154 insertions, 0 deletions
diff --git a/man/sulogin.8.xml b/man/sulogin.8.xml new file mode 100644 index 0000000..da4a7e2 --- /dev/null +++ b/man/sulogin.8.xml @@ -0,0 +1,154 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + SPDX-FileCopyrightText: 1989 - 1992, Julianne Frances Haugh + SPDX-FileCopyrightText: 2007 - 2008, Nicolas François + SPDX-License-Identifier: BSD-3-Clause +--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN" + "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ +<!ENTITY ENV_HZ SYSTEM "login.defs.d/ENV_HZ.xml"> +<!ENTITY ENV_TZ SYSTEM "login.defs.d/ENV_TZ.xml"> +<!-- SHADOW-CONFIG-HERE --> +]> +<refentry id='sulogin.8'> + <!-- $Id$ --> + <refentryinfo> + <author> + <firstname>Julianne Frances</firstname> + <surname>Haugh</surname> + <contrib>Creation, 1989</contrib> + </author> + <author> + <firstname>Thomas</firstname> + <surname>Kłoczko</surname> + <email>kloczek@pld.org.pl</email> + <contrib>shadow-utils maintainer, 2000 - 2007</contrib> + </author> + <author> + <firstname>Nicolas</firstname> + <surname>François</surname> + <email>nicolas.francois@centraliens.net</email> + <contrib>shadow-utils maintainer, 2007 - now</contrib> + </author> + </refentryinfo> + <refmeta> + <refentrytitle>sulogin</refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo class="sectdesc">System Management Commands</refmiscinfo> + <refmiscinfo class="source">shadow-utils</refmiscinfo> + <refmiscinfo class="version">&SHADOW_UTILS_VERSION;</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='configuration'> + <title>CONFIGURATION</title> + <para> + The following configuration variables in + <filename>/etc/login.defs</filename> change the behavior of this + tool: + </para> + <variablelist> + &ENV_HZ; + &ENV_TZ; + </variablelist> + </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> |