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<h1 class="no_toc" id="static-deltas-for-offline-updates">
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<a href="#static-deltas-for-offline-updates" class="anchor-heading" aria-labelledby="static-deltas-for-offline-updates"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> Static deltas for offline updates
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<!-- SPDX-License-Identifier: (CC-BY-SA-3.0 OR GFDL-1.3-or-later) -->
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<p>OSTree supports generating “self-contained” static delta files, via an
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invocation similar to the following:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ ostree --repo=/path/to/repo static-delta generate --min-fallback-size=0 --filename=delta-update-file --from=<from> <to>
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</code></pre></div></div>
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<p>Note the usage of <code class="language-plaintext highlighter-rouge">--min-fallback-size=0</code> to ensure that the delta is self-contained.</p>
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<p>Then, you can copy <code class="language-plaintext highlighter-rouge">delta-update-file</code> to a USB key or similar, and a target system can apply it via e.g.:</p>
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<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>$ ostree --repo=/ostree/repo static-delta apply-offline /path/to/delta-update-file
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</code></pre></div></div>
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<p>The above invocation will merely apply the content into the repository.
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To make it bootable, this will then need to be further followed up by e.g. <code class="language-plaintext highlighter-rouge">ostree admin deploy <to></code> or
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with a higher level tool such as <code class="language-plaintext highlighter-rouge">rpm-ostree</code>, via <code class="language-plaintext highlighter-rouge">rpm-ostree deploy :<to></code>.</p>
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