https://vallo.cz/tags/snapshot/ Recent content in Snapshot on vWiki Hugo en © 2025 Rudolf Vallo Sat, 03 May 2025 23:34:21 +0200 https://vallo.cz/posts/lvm/ Sat, 03 May 2025 23:34:21 +0200 https://vallo.cz/posts/lvm/ <h1 id="lvm">LVM</h1> <h2 id="extend-volume">Extend volume</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl"><span class="c1">#vg</span> </span></span><span class="line"><span class="cl">vgextend vg /dev/sdd </span></span><span class="line"><span class="cl"><span class="c1">#lvm</span> </span></span><span class="line"><span class="cl">lvextend -L+30G /dev/vg/volume </span></span><span class="line"><span class="cl"><span class="c1">#luks</span> </span></span><span class="line"><span class="cl">cryptsetup resize extra_crypt </span></span><span class="line"><span class="cl"><span class="c1">#ext4</span> </span></span><span class="line"><span class="cl">resize2fs /dev/vg/volume </span></span></code></pre></div><h2 id="shrink-volume">Shrink volume</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">umount /home/ </span></span><span class="line"><span class="cl">2fsck -f /dev/vg/home </span></span><span class="line"><span class="cl">resize2fs /dev/vg/home 70G </span></span><span class="line"><span class="cl">lvreduce -L 70G /dev/vg/home </span></span><span class="line"><span class="cl">e2fsck -f /dev/vg/home </span></span></code></pre></div><h2 id="lvm---fix-thin-lvm">LVM - fix thin lvm</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">lvconvert --repair vg/data </span></span></code></pre></div><p><a href="https://blog.monotok.org/lvm-transaction-id-mismatch-and-metadata-resize-error/">https://blog.monotok.org/lvm-transaction-id-mismatch-and-metadata-resize-error/</a></p> <h2 id="lvm-snapshot">LVM snapshot</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">lvcreate -s -L500M -n test-snapshot /dev/vg/test </span></span></code></pre></div><h2 id="activate-lvm-in-lxd">Activate LVM in LXD</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">lvchange -a y -v --ignoreactivationskip vg/containers_test </span></span></code></pre></div>