title: PrestaShop won't install due to an unwritable sessions path
body: <p>I'm trying to install PrestaShop on my Virtual Server hosted at <a href="http://www.forpsi.com/" rel="nofollow">Forpsi</a>. The installation process, however, complains that the session path is not writable:</p>
  
  <pre><code>Your PHP sessions path is not writable - check with your hosting provider: /var/lib/php/session 
  </code></pre>
  
  <p>I found two advices on the Internet:</p>
  
  <ol>
  <li>To make sure that the particular folder (/var/lib/php/session) has assigned rights to write for everyone. I issued <code>chmod -R o+rw /var/lib/php/session</code> but it did not help.</li>
  <li>To change the <code>session.save_path</code> value in the <code>php.ini</code> file to <code>"/tmp/"</code>.</li>
  </ol>
  
  <p>To find the correct <code>php.ini</code> file, I run the following command:</p>
  
  <pre><code>php -i | grep php.ini
  </code></pre>
  
  <p>and got the following answer:</p>
  
  <pre><code>Configuration File (php.ini) Path =&gt; /etc
  Loaded Configuration File =&gt; /etc/php.ini
  </code></pre>
  
  <p>So I changed <code>session.save_path = "/var/lib/php/session"</code> to <code>session.save_path = "/tmp/"</code> in <code>/etc/php.ini</code> and restarted apache via:</p>
  
  <pre><code>service httpd restart
  </code></pre>
  
  <p>Nevertheless, when rerunning the installation script, I still get the same error.</p>
  
  <p>I tried to verify whether the session.save_path was changed or not by running <code>phpinfo()</code> and indeed it still shows:</p>
  
  <pre><code>session.save_path (Local Value: /var/lib/php/session, Master Value: /var/lib/php/session)
  </code></pre>
  
  <p>I am running multiple websites at the same host, and other applications (including a WordPress installation) work fine.</p>
  
  <p>What am I doing wrong?</p>