title: Access denied for user 'root'@'localhost' (using password: NO) - what's wrong?
body: <p>(Sorry for my English)</p>
  
  <p>This is a log of my console:</p>
  
  <pre><code>anton@anton-X451CA:~$ mysql -u root
  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
  anton@anton-X451CA:~$ mysql -u root -p
  Enter password: 
  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
  </code></pre>
  
  <p>What should I do? I understand that it appears when I try entering without a password, but I am dont confirmed password, and 'root'/empty string doesn't help.</p>