title: Postgresql warning: "could not flush dirty data: Function not implemented"
body: <p>I'm trying to create a new database on postgres, by running command:</p>
  
  <pre><code>CREATE DATABASE dbname;
  </code></pre>
  
  <p>and I face the error:</p>
  
  <blockquote>
    <p>WARNING:  could not flush dirty data: Function not implemented</p>
  </blockquote>
  
  <p>many times! and finally I get the message </p>
  
  <blockquote>
    <p>CREATE DATABASE</p>
  </blockquote>
  
  <p>Can anyone help me to undrestand and solve this error please?</p>