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<li class="toctree-l3"><a class="reference internal" href="#creating-container-image">Creating Container image.</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#adding-container-to-pdr-region-using-stitching">Adding Container to PDR region using Stitching.</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#boot-options-for-boot-from-pdr">Boot options for Boot from PDR.</a></li>
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<section id="boot-from-flash">
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<h1>Boot from Flash<a class="headerlink" href="#boot-from-flash" title="Permalink to this heading"></a></h1>
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<section id="creating-container-image">
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<h2>Creating Container image.<a class="headerlink" href="#creating-container-image" title="Permalink to this heading"></a></h2>
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<p>Container image is stored in raw format on flash partition without using EXT2 or FAT file system.
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See <a class="reference internal" href="../how-tos/create-container-boot-image.html#create-container-boot-image"><span class="std std-ref">Create Container Boot Image</span></a> for more details.</p>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>Container image max size is 0x700000. Exclude Initrd file during Container image creation to reduce size.</p>
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</div>
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</section>
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<section id="place-the-image-in-platform-folder">
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<h2>Place the image in platform folder<a class="headerlink" href="#place-the-image-in-platform-folder" title="Permalink to this heading"></a></h2>
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<ol class="arabic">
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<li><p>Create folder SpiIasBin/ in platform folder of specific project.</p>
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<blockquote>
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<div><p>Example: Platform/<ProjectBoardPkg>/SpiIasBins</p>
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</div></blockquote>
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</li>
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<li><p>Copy Container binary image into SpiIasBin folder.</p></li>
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</ol>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>Container image should be named as iasimage1.bin for Ist Container region and iasimage2.bin for second Container region.</p>
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</div>
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</section>
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<section id="bios-boot">
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<h2>BIOS BOOT<a class="headerlink" href="#bios-boot" title="Permalink to this heading"></a></h2>
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<p><strong>Step 1:</strong> Add iasimage to non-redundant region of BIOS region.:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">(</span><span class="s1">'SPI_IAS1.bin'</span> <span class="p">,</span> <span class="s1">''</span> <span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">SPI_IAS1_SIZE</span><span class="p">,</span> <span class="n">STITCH_OPS</span><span class="o">.</span><span class="n">MODE_FILE_PAD</span> <span class="o">|</span> <span class="n">ias1_flag</span><span class="p">,</span> <span class="n">STITCH_OPS</span><span class="o">.</span><span class="n">MODE_POS_TAIL</span><span class="p">)</span>
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</pre></div>
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</div>
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<p><strong>Step 2:</strong> Define size of Container image:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="bp">self</span><span class="o">.</span><span class="n">SPI_IAS1_SIZE</span> <span class="o">=</span> <span class="mh">0x700000</span>
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</pre></div>
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</div>
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<p><strong>Step 3:</strong> Increase non-redundant area size by Container image:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="bp">self</span><span class="o">.</span><span class="n">NON_REDUNDANT_SIZE</span> <span class="o">=</span> <span class="n">X</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">SPI_IAS1_SIZE</span>
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</pre></div>
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</div>
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<p><strong>Step 4:</strong> Increase slim bootloader size to max:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="bp">self</span><span class="o">.</span><span class="n">SLIMBOOTLOADER_SIZE</span> <span class="o">=</span> <span class="mh">0xE00000</span>
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</pre></div>
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</div>
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<p><strong>Step 5:</strong> Define iasimage flag:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ias1_flag</span> <span class="o">=</span> <span class="mi">0</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">SPI_IAS1_SIZE</span> <span class="o">></span> <span class="mi">0</span> <span class="k">else</span> <span class="n">STITCH_OPS</span><span class="o">.</span><span class="n">MODE_FILE_IGNOR</span>
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</pre></div>
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</div>
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<p><strong>Step 6:</strong> Remove any redundant region to create space for Container image:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1">#('REDUNDANT_B.bin' , '' , self.REDUNDANT_SIZE,STITCH_OPS.MODE_FILE_PAD, STITCH_OPS.MODE_POS_HEAD)</span>
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</pre></div>
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</div>
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</section>
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<section id="boot-options-for-boot-bios">
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<h2>Boot options for Boot BIOS.<a class="headerlink" href="#boot-options-for-boot-bios" title="Permalink to this heading"></a></h2>
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<p>See <a class="reference internal" href="boot-options.html#boot-options"><span class="std std-ref">Boot Options</span></a> for more details.</p>
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<p><strong>Step 1:</strong> Get LBA address from flash map during build. For example refer
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below image, 0x3f8000 is the LBA offset of Container image.</p>
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<a class="reference internal image-reference" href="../_images/Flashmap.png"><img alt="Boot flash." class="align-center" src="../_images/Flashmap.png" style="width: 5.92361in; height: 1.72222in;" /></a>
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<p><strong>Step 2:</strong> Config boot options in config editor as below to boot from BIOS.</p>
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<a class="reference internal image-reference" href="../_images/BIOS_boot.png"><img alt="Boot flash." class="align-center" src="../_images/BIOS_boot.png" style="width: 6.5in; height: 3.19547in;" /></a>
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</section>
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<section id="adding-container-to-pdr-region-using-stitching">
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<h2>Adding Container to PDR region using Stitching.<a class="headerlink" href="#adding-container-to-pdr-region-using-stitching" title="Permalink to this heading"></a></h2>
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<p>Container image can be added to PDR region in two ways using stitching or using FIT tool.</p>
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<p>Using Stitching method.</p>
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<p><strong>Step 1:</strong> To place the image in PDR region, add the below changes to StitchIfwiConfig.py in function get_xml_change_list().:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">(</span><span class="s1">'./FlashLayout/PdrRegion/Length'</span><span class="p">,</span> <span class="s1">'0x700000'</span><span class="p">),</span>
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<span class="p">(</span><span class="s1">'./FlashLayout/PdrRegion/InputFile'</span><span class="p">,</span> <span class="s1">'$SourceDir\iasimage1.bin'</span><span class="p">),</span>
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<span class="p">(</span><span class="s1">'./FlashLayout/PdrRegion/Enabled'</span><span class="p">,</span> <span class="s1">'Enabled'</span><span class="p">),</span>
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</pre></div>
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</div>
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<p><strong>Step 2:</strong> Copy iasimage1.bin to ‘Input/iasimage1.bin’</p>
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<p><strong>Step 3:</strong> Stitch the final image.</p>
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<p>Adding Container image to PDR using FIT tool.</p>
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<p><strong>Step 1:</strong> Open the IFWI using FIT tool.</p>
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<p><strong>Step 2:</strong> Load Container image into PDR region.</p>
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<a class="reference internal image-reference" href="../_images/fit1.png"><img alt="Boot flash." class="align-center" src="../_images/fit1.png" style="width: 6.5in; height: 3.17669in;" /></a>
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<p><strong>Step 3:</strong> Build the image.</p>
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</section>
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<section id="boot-options-for-boot-from-pdr">
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<h2>Boot options for Boot from PDR.<a class="headerlink" href="#boot-options-for-boot-from-pdr" title="Permalink to this heading"></a></h2>
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<p><strong>Step 1:</strong> Change boot options as below.</p>
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<a class="reference internal image-reference" href="../_images/PDR_BOOT.png"><img alt="Boot flash." class="align-center" src="../_images/PDR_BOOT.png" style="width: 6.5in; height: 3.04586in;" /></a>
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</section>
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<p>© Copyright 2018 - 2025, Intel Corporation.
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<span class="lastupdated">Last updated on Jun 27, 2025.
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