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<section id="boot-image">
<h1>Boot Image<a class="headerlink" href="#boot-image" title="Permalink to this heading"></a></h1>
<p>Booting quickly and securely is highly desirable, and in many use cases, mandatory. SBL OsLoader payload is designed to boot an OS by loading and verifying a kernel image
in an SBL container image format. SBL supports <a href="https://www.gnu.org/software/grub/manual/multiboot/multiboot.html" target="_blank">Multiboot Specification</a> compliant boot images encapsulated in an SBL boot container.</p>
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<p>See <a class="reference internal" href="../tools/GenContainer.html#gen-container-tool"><span class="std std-ref">Container Tool</span></a> for more details on container format.</p>
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<p>SBL container containing the boot image can be stored one of the OsLoader supported boot media. SBL OsLoader payload supports many different partition layouts and file systems
and can also load the boot image from a raw partition using the LBA number.</p>
<p>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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<p class="admonition-title">Note</p>
<p>SBL <strong>debug</strong> build is able to boot standard Linux kernel without packing in SBL container image format. See <a class="reference internal" href="build-system.html#release-build"><span class="std std-ref">Release vs Debug Build</span></a> for more details.</p>
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