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+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
+<refentry id="samba_downgrade_db.8">
+
+<refmeta>
+ <refentrytitle>samba_downgrade_db</refentrytitle>
+ <manvolnum>8</manvolnum>
+ <refmiscinfo class="source">Samba</refmiscinfo>
+ <refmiscinfo class="manual">User Commands</refmiscinfo>
+ <refmiscinfo class="version">&doc.version;</refmiscinfo>
+</refmeta>
+
+
+<refnamediv>
+ <refname>samba_downgrade_db</refname>
+ <refpurpose>Samba tool for downgrading AD databases
+ </refpurpose>
+</refnamediv>
+
+<refsynopsisdiv>
+ <cmdsynopsis>
+ <command>samba_downgrade_db</command>
+ <arg choice="opt">-H</arg>
+ <arg choice="opt">-s</arg>
+ </cmdsynopsis>
+</refsynopsisdiv>
+
+<refsect1>
+ <title>DESCRIPTION</title>
+ <para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
+ <manvolnum>8</manvolnum></citerefentry> suite.</para>
+
+ <para>The format of the Samba Active Directory (AD) database changed in
+ version 4.8 and 4.11. When downgrading a Samba AD Domain Controller (DC)
+ to a release that is older than either of these versions (e.g. 4.11 to
+ 4.10), the AD database must be manually downgraded
+ <emphasis>before</emphasis> the Samba packages can be safely downgraded.
+ </para>
+
+ <para>This tool downgrades a Samba sam.ldb database from the format
+ used in version &doc.version; to that of version 4.7. The v4.7 database
+ format can safely be read by any version of Samba. If necessary, later
+ versions of Samba will repack and reconfigure a v4.7-format database when
+ the samba executable is first started.</para>
+
+ <para>Note that all Samba services must be stopped on the DC before running
+ this tool. Once the tool has run, do not restart samba or modify the
+ database before the Samba software package has been downgraded.
+ </para>
+</refsect1>
+
+<refsect1>
+ <title>OPTIONS</title>
+
+ <variablelist>
+
+ <varlistentry>
+ <term>-H [sam.ldb file]</term>
+ <listitem><para>
+ Link directly to a sam.ldb file instead of using path in system
+ smb.conf
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>-s [smb.conf file]</term>
+ <listitem><para>
+ Link directly to smb.conf file instead of system default (usually
+ in /usr/local/samba/etc/smb.conf)
+ </para></listitem>
+ </varlistentry>
+
+ </variablelist>
+</refsect1>
+
+<refsect1>
+ <title>VERSION</title>
+
+ <para>This man page is complete for version &doc.version; of the Samba
+ suite.</para>
+</refsect1>
+
+<refsect1>
+ <title>AUTHOR</title>
+
+ <para>The original Samba software and related utilities
+ were created by Andrew Tridgell. Samba is now developed
+ by the Samba Team as an Open Source project similar
+ to the way the Linux kernel is developed.</para>
+
+ <para>The samba_downgrade_db tool was developed by the Samba team
+ at Catalyst IT Ltd.</para>
+</refsect1>
+
+</refentry>