Updates from tech review

xml/ha_rear.xml

@@ -168,10 +168,6 @@
 
   <sect2 xml:id="sec-ha-rear-concept-versions">
    <title>&rear; version updates</title>
-   <para>
-    &productname; &productnumber; ships with &rear; version 2.7, provided by the
-    package <package>rear27a</package>.
-   </para>
 
    <note>
     <title>Find important information in changelogs</title>
@@ -491,22 +487,14 @@
      Therefore, the subvolumes must be explicitly included in the &rear; configuration.
     </para>
     <para>
-     This <filename>/etc/rear/local.conf</filename> example is simplified from the example file
-     <filename>SLE12-SP2-btrfs-example.conf</filename>. It includes the whole
-     <filename>/var</filename> directory instead of specific <filename>/var</filename> subdirectories.
-    </para>
-    <para>
-     Adjust this example as required for your setup. See the example file for details about the settings.
+     Add this configuration snippet to <filename>/etc/rear/local.conf</filename> and
+    adjust it according to your setup. For more information and additional options, see the
+    example files at <filename>/usr/share/rear/conf/examples/SLE*-btrfs-example.conf</filename>.
     </para>
 <screen>OUTPUT=ISO
 BACKUP=NETFS
-BACKUP_OPTIONS="nfsvers=4,nolock"
 BACKUP_URL=nfs://<replaceable>host.&exampledomain;/path/to/rear/backup</replaceable>
-NETFS_KEEP_OLD_BACKUP_COPY=yes
-REQUIRED_PROGS=( "${REQUIRED_PROGS[@]}" snapper chattr lsattr )
-COPY_AS_IS=( "${COPY_AS_IS[@]}" /usr/lib/snapper/installation-helper /etc/snapper/config-templates/default )
-BACKUP_PROG_INCLUDE=( /root /boot/grub2/i386-pc /tmp /opt /var /boot/grub2/x86_64-efi /srv /usr/local )
-POST_RECOVERY_SCRIPT=( 'if snapper --no-dbus -r $TARGET_FS_ROOT get-config | grep -q "^QGROUP.*[0-9]/[0-9]" ; then snapper --no-dbus -r $TARGET_FS_ROOT set-config QGROUP= ; snapper --no-dbus -r $TARGET_FS_ROOT setup-quota &amp;&amp; echo snapper setup-quota done || echo snapper setup-quota failed ; else echo snapper setup-quota not used ; fi' )</screen>
+BACKUP_PROG_INCLUDE=( /root /boot/grub2/i386-pc /tmp /opt /var /boot/grub2/x86_64-efi /srv /usr/local )</screen>
     <tip>
       <title>Directories for <literal>BACKUP_PROG_INCLUDE</literal></title>
       <para>
@@ -542,17 +530,9 @@ RETENTION_TIME="Month"</screen>
   <example xml:id="ex-ha-rear-config-multipath">
     <title>Backing up multipath devices</title>
     <para>
-     By default, &rear; ignores file systems on <filename>/dev/mapper</filename> devices because
-     it cannot re-create them when restoring the system. You can allow &rear; to include
-     these file systems by adding the following line to <filename>/etc/rear/local.conf</filename>:
+     By default, &rear; ignores file systems on multipath devices because it assumes they are on shared storage, not part of the local system. You can make &rear; include these file systems by adding the following line to <filename>/etc/rear/local.conf</filename>:
     </para>
     <screen>AUTOEXCLUDE_MULTIPATH=n</screen>
-    <important role="compact">
-      <para>
-      Before you can restore the backup, you must manually re-create the device structure on
-      the new system.
-      </para>
-    </important>
   </example>
 
   <example xml:id="ex-ex-ha-rear-config-UEFI">
@@ -666,17 +646,6 @@ RETENTION_TIME="Month"</screen>
     everything works as expected.
    </para>
   </warning>
-  <important>
-    <title>Restoring a multipath backup</title>
-    <para>
-     If your backup includes file systems on a multipath device, you must manually re-create
-     the device structure on the new system before you can restore the backup.
-    </para>
-    <para>
-     Backing up multipath devices is disabled by default, but can be enabled by setting
-     <literal>AUTOEXCLUDE_MULTIPATH=n</literal> in <filename>/etc/rear/local.conf</filename>.
-    </para>
-  </important>
 
   <procedure xml:id="pro-ha-rear-testing">
    <title>Performing a disaster recovery on a test machine</title>