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Site updated at 2018-02-27 07:29:46 UTC

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<p>+&lt;p class='note'&gt;
+If you are running a database server instance on the same server as Home Assistant then you must ensure that this service starts before Home Assistant. For a Linux instance running Systemd (Raspberry Pi, Debian, Ubuntu and others) then you should edit the file /etc/systemd/system/home-assistant@homeassistant.service as root (e.g. sudo nano /etc/systemd/system/home-assistant@homeassistant.service) and add the service - for PostgreSQL:
+<code class="highlighter-rouge">
+[Unit]
+Description=Home Assistant
+After=network.target postgresql.service
+</code>
+&lt;/p&gt;</p>
<h2><a class="title-link" name="installation-notes" href="#installation-notes"></a> Installation notes</h2>
<p>Not all Python bindings for the chosen database engine can be installed directly. This section contains additional details which should help you to get it working.</p>
<h3><a class="title-link" name="mariadb-and-mysql" href="#mariadb-and-mysql"></a> MariaDB and MySQL</h3>
<p>For MariaDB you may have to install a few dependencies. On the Python side we use the <code class="highlighter-rouge">mysqlclient</code>:</p>
<p>If you are in a virtual environment, don’t forget to activate it before installing the <code class="highlighter-rouge">mysqlclient</code> Python package described below.</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>pi@homeassistant:~ <span class="nv">$ </span>sudo su homeassistant -s /bin/bash
<span class="gp">homeassistant@homeassistant:~$ </span><span class="nb">source</span> /srv/homeassistant/bin/activate
<span class="o">(</span>homeassistant<span class="o">)</span> homeassistant@homeassistant:~<span class="nv">$ </span>pip3 install mysqlclient
</code></pre>
</div>
<p>For MariaDB you may have to install a few dependencies. If you’re using MariaDB version 10.2, libmariadbclient-dev was renamed to libmariadb-dev, please install the correct package based on your MariaDB version.</p>
<p>On the Python side we use the <code class="highlighter-rouge">mysqlclient</code>:</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span>sudo apt-get install libmariadbclient-dev libssl-dev
<span class="gp">$ </span>pip3 install mysqlclient
</code></pre>
@ -278,12 +293,6 @@
<span class="gp">$ </span>pip3 install mysqlclient
</code></pre>
</div>
<p>If you are in a virtual environment, don’t forget to activate it before installing the <code class="highlighter-rouge">mysqlclient</code> Python package.</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>pi@homeassistant:~ <span class="nv">$ </span>sudo su homeassistant -s /bin/bash
<span class="gp">homeassistant@homeassistant:~$ </span><span class="nb">source</span> /srv/homeassistant/bin/activate
<span class="o">(</span>homeassistant<span class="o">)</span> homeassistant@homeassistant:~<span class="nv">$ </span>pip3 install mysqlclient
</code></pre>
</div>
<p>After installing the dependencies, it is required to create the database manually. During the startup, Home Assistant will look for the database specified in the <code class="highlighter-rouge">db_url</code>. If the database doesn’t exist, it will not automatically create it for you.</p>
<p>Once Home Assistant finds the database, with right level of permissions, all the required tables will then be automatically created and the data will be populated accordingly.</p>
<h3><a class="title-link" name="postgresql" href="#postgresql"></a> PostgreSQL</h3>