1 files changed, 112 insertions, 7 deletions

diff --git a/doc/book-enea-linux-user-guide/doc/using_enea_linux.xml b/doc/book-enea-linux-user-guide/doc/using_enea_linux.xml
index a6a0ed6..fbd6d28 100644
--- a/doc/book-enea-linux-user-guide/doc/using_enea_linux.xml
+++ b/doc/book-enea-linux-user-guide/doc/using_enea_linux.xml
@@ -27,7 +27,7 @@
           <programlisting>$ mkdir enea-linux
 $ cd enea-linux
 $ repo init -u git@git.enea.com:linux/manifests/el_manifests-standard.git \
-    -b refs/tags/Enea_Linux_8.0 -m $MACHINE/default.xml
+    -b refs/tags/Enea_Linux_8.1 -m $MACHINE/default.xml
 $ repo sync</programlisting>
         </step>
 
@@ -106,7 +106,7 @@ $ cd &lt;build_dir&gt;/tmp/deploy/images/&lt;target&gt;/  # Here are the build b
           <programlisting>$ mkdir enea-linux
 $ cd enea-linux
 $ repo init -u git@git.enea.com:linux/manifests/el_manifests-standard.git \
-    -b refs/tags/Enea_Linux_8.0 -m $MACHINE/default.xml
+    -b refs/tags/Enea_Linux_8.1 -m $MACHINE/default.xml
 $ repo sync</programlisting>
         </step>
 
@@ -274,7 +274,7 @@ label device01
           <para>Copy <filename>pxelinux.0</filename> and
           <filename>vesamenu.c32</filename> from the build directory, e.g.
           from
-          <filename>&lt;build_dir&gt;tmp/work/corei7-64-enea-linux/syslinux/6.03-r0/image/usr/share/syslinux/</filename>.</para>
+          <filename>&lt;build_dir&gt;tmp/work/corei7-64-enea-linux/syslinux/6.04-pre2-r0/image/usr/share/syslinux/</filename>.</para>
         </listitem>
 
         <listitem>
@@ -308,6 +308,111 @@ label device01
       during BIOS power up tests. Look up the manufacturer's documentation for
       your board model to find the appropriate key.</para>
     </section>
+
+    <section id="boot_from_ram">
+      <title>Boot from RAM</title>
+
+      <para>This example requires that a TFTP server is set up at IP address
+      <literal>&lt;tftp_server_ip&gt;</literal>, and that the server stores
+      the Enea Linux image files, kernel image, device tree blob and root
+      filesystem, in <literal>/tftpboot/&lt;download_directory&gt;.</literal>
+      Please refer to <xref linkend="prebuiltprereq" /> for more details on
+      how to install and configure the TFTP server.</para>
+
+      <para>Once you have that in place, run the following commands on the
+      target:</para>
+
+      <programlisting>## set tftp server IP
+U-Boot&gt; setenv serverip &lt;tftp_server_ip&gt;
+
+## tftp the image files on the target machine
+U-Boot&gt; tftpboot 0x01000000 Image  
+U-Boot&gt; tftpboot 0x02000000 Image-bcm2837-rpi-3-b.dtb 
+U-Boot&gt; tftpboot 0x03000000 enea-image-standard-raspberrypi3-64.ext2.gz.u-boot
+
+## add any other bootargs values if necessary 
+U-Boot&gt; setenv bootargs "8250.nr_uarts=1 root=/dev/ram rw ramdisk_size=500000 ip=dhcp \
+console=ttyS0,115200"
+
+## Start boot sequence
+U-Boot&gt; booti 0x01000000 0x03000000 0x02000000</programlisting>
+    </section>
+
+    <section id="boot_from_sd">
+      <title>Boot from SD card</title>
+
+      <para>Copy the
+      <filename>enea-image-standard-raspberrypi3-64.rpi-sdimg</filename> image
+      to the SD card using the Linux dd tool or Win32DiskImager in Windows,
+      and insert it into the RPi. The Raspberry Pi will not start without a
+      properly formatted SD Card, containing the bootloader, kernel image and
+      rootfs.</para>
+
+      <para>Below you can find two methods of how to format an SD Card:</para>
+
+      <itemizedlist>
+        <listitem>
+          <para><emphasis role="bold">Format and copy images to the SD card
+          using the Linux dd command line</emphasis></para>
+
+          <para>The <command>dd</command> command copies a file, converting
+          the format of the data in the process, according to the operands
+          specified:</para>
+
+          <programlisting>sudo dd bs=4M if=enea-image-standard-sdk-raspberrypi3-64.rpi-sdimg of=/dev/sdg</programlisting>
+
+          <note>
+            <para>Use <command>dd</command> cautiously - improper usage or
+            entering the wrong values could inadvertently wipe, destroy, or
+            overwrite the data on your hard drive.</para>
+          </note>
+        </listitem>
+
+        <listitem>
+          <para><emphasis role="bold">Format the SD card using the
+          Win32DiskImager program</emphasis></para>
+
+          <orderedlist>
+            <listitem>
+              <para>Download and unzip <ulink
+              url="https://sourceforge.net/projects/win32diskimager/">Win32DiskImager</ulink></para>
+            </listitem>
+
+            <listitem>
+              <para>Run <filename>Win32DiskImager.exe</filename></para>
+            </listitem>
+
+            <listitem>
+              <para>Select the drive of your SD card</para>
+            </listitem>
+
+            <listitem>
+              <para>Select the image
+              <filename><filename>enea-image-standard-raspberrypi3-64.rpi-sdimg</filename></filename></para>
+            </listitem>
+
+            <listitem>
+              <para>Click "Write" and wait for the write to complete</para>
+            </listitem>
+
+            <listitem>
+              <para>Exit the imager and eject the SD Card</para>
+            </listitem>
+
+            <listitem>
+              <para>Plug the card into your Raspberry Pi</para>
+            </listitem>
+          </orderedlist>
+
+          <note>
+            <para>Be careful to select the correct drive. If you choose the
+            wrong one you may destroy your HDD data. If you are using an SD
+            Card slot and can't see the drive in the Win32DiskImager window,
+            try using an affordable external adapter in a USB slot.</para>
+          </note>
+        </listitem>
+      </itemizedlist>
+    </section>
   </section>
 
   <section id="custom_enealinux">
@@ -412,8 +517,8 @@ BBLAYERS ?= " \
       <para>As a result, <filename>BBLAYERS</filename> shall be extended with
       the bsp-layer/s layer for your target and any other additional layer/s.
       For details on how to do this, see the <ulink
-      url="http://www.yoctoproject.org/docs/2.5/dev-manual/dev-manual.html#understanding-and-creating-layers">Yocto
-      2.5 Dev Manual, section "Understanding and Creating Layers".</ulink> If
+      url="http://www.yoctoproject.org/docs/2.7/dev-manual/dev-manual.html#understanding-and-creating-layers">Yocto
+      2.7 Dev Manual, section "Understanding and Creating Layers".</ulink> If
       needed replace the Yocto version.</para>
 
       <para>Layers can be added when you initialize the build environment. The
@@ -440,9 +545,9 @@ BBLAYERS ?= " \
       <title>Adding a Recipe</title>
 
       <para>Study the <ulink
-      url="https://www.yoctoproject.org/docs/2.5/dev-manual/dev-manual.html#new-recipe-single-c-file-package-hello-world">Hello
+      url="https://www.yoctoproject.org/docs/2.7/dev-manual/dev-manual.html#new-recipe-single-c-file-package-hello-world">Hello
       World recipe</ulink> in the Yocto Project Development Manual. If needed
-      replace the example version (2.5) with the Yocto version in your Enea
+      replace the example version (2.7) with the Yocto version in your Enea
       Linux distribution.</para>
     </section>