http://blog.cmac4603.dev/tags/fat32/Recent content in Fat32 on NotebookHugoen-usSun, 21 Jun 2026 18:40:16 +0100http://blog.cmac4603.dev/posts/flashing-esp32-mini-sd-card/Sun, 21 Jun 2026 18:40:16 +0100http://blog.cmac4603.dev/posts/flashing-esp32-mini-sd-card/<p>For most ESP32 projects, a microSD card should be formatted to FAT32.</p> <p>FAT32 only supports microSD cards up to 32GB.</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span><span style="color:#75715e"># find the sd card with lsblk, then unmount it</span> </span></span><span style="display:flex;"><span>sudo umount /dev/mmcblk0 </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># format in fat32 command</span> </span></span><span style="display:flex;"><span>sudo mkfs.vfat -F32 /dev/mmcblk0 </span></span></code></pre></div>