title: Couldn't execute 'show events' 15777
body: <p>After spending days for looking for a solution, I'm taking my chance here. I have a MySQL server that I try to backup with the following command : </p>
  
  <pre><code>mysqldump -p --all-databases --allow-keywords --master-data --events --single-transaction 
     -u root &gt; /root/mysqldump.sql
  </code></pre>
  
  <p>When I'm doing this, I have this answer : </p>
  
  <blockquote>
    <p>mysqldump: Couldn't execute 'show events': Cannot proceed because system tables used by Event Scheduler were found damaged at server start (1577).</p>
  </blockquote>
  
  <p>I have try to do a <code>mysql_upgrade -u root -h localhost -p --verbose --force</code> everything look OK but the mysqldump still not working with the same error.</p>
  
  <p>Can you help me please ?</p>