diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml
index 74f61c8e7e..7e8369c977 100644
--- a/documentation/dev-manual/dev-manual-common-tasks.xml
+++ b/documentation/dev-manual/dev-manual-common-tasks.xml
@@ -3483,7 +3483,8 @@
                 A Package Test (ptest) runs tests against packages built 
                 by the OpenEmbedded build system on the target machine.
                 Minimally, a Ptest contains two things: a shell script that 
-                starts the test, and the actual test.
+                starts the test (<filename>run-ptest</filename>),
+                and the actual test.
                 The shell script that starts the test must not contain 
                 the actual test, the script only starts it.
                 On the other hand, the test can be anything from a simple
@@ -3520,6 +3521,20 @@
      inherit ptest
                             </literallayout>
                             </para></listitem>
+                        <listitem><para><emphasis>Create <filename>run-ptest</filename>:</emphasis>
+                            The <filename>run-ptest</filename> script needs to
+                            start your tests.
+                            Locate this script where you would point to it 
+                            using 
+                            <ulink url='&YOCTO_DOCS_REF_URL;#var-SRC_URI'><filename>SRC_URI</filename></ulink>.
+                            Here is an example that starts a test for 
+                            <filename>dbus</filename>:
+                            <literallayout class='monospaced'>
+     #!/bin/sh
+     cd test
+     make -k runtest-TESTS
+                            </literallayout>
+                            </para></listitem>
                         <listitem><para><emphasis>Ensure dependencies are
                             met:</emphasis>
                             If the test adds build or runtime dependencies 
@@ -3600,8 +3615,8 @@
                     which is found in the 
                     <link linkend='build-directory'>Build Directory</link>:
                     <literallayout class='monospaced'>
-     DISTRO_FEATURES = "ptest-pkgs"
-     EXTRA_IMAGE_FEATURES = "ptest" 
+     EXTRA_IMAGE_FEATURES += "ptest" 
+     DISTRO_FEATURES_append = " ptest-pkgs"
                     </literallayout>
                     Once your build is complete, the ptest files are installed
                     into the <filename>/usr/lib/&lt;package&gt;/ptest</filename>
@@ -3724,7 +3739,7 @@
                 Set the following variables in your
                 <filename>local.conf</filename> file as follows:
                 <literallayout class='monospaced'>
-     DISTRO_FEATURES = "systemd"
+     DISTRO_FEATURES_append = " systemd"
      VIRTUAL-RUNTIME_init_manager = "systemd"
                 </literallayout>
                 You can save some disk space by adding
@@ -3745,7 +3760,7 @@
                 Set the following variables in your
                 <filename>local.conf</filename> file as follows:
                 <literallayout class='monospaced'>
-     DISTRO_FEATURES = "systemd"
+     DISTRO_FEATURES_append = " systemd"
      VIRTUAL-RUNTIME_init_manager = "systemd"
                 </literallayout>
                 Doing so causes your main image to use the