title: update mysql on debian
body: <p>I'm trying to update Mysql on debian without success, and all tutorial on internet just fails.<br>
  I got Debian 6.0.6 squeeze, my mysql version is <code>mysql  Ver 14.14 Distrib 5.1.63</code>.<br>
  I did <code>apt-get update</code> and <code>apt-get upgrade</code> it says that nothing is to upgrade.<br>
  So I downloaded the last version <code>wget --content-disposition http://www.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.28-debian6.0-x86_64.deb/from/http://cdn.mysql.com/</code> and installed it </p>
  
  <pre><code># dpkg -i mysql-5.5.28-debian6.0-x86_64.deb 
  (Reading database ... 41264 files and directories currently installed.)
  Preparing to replace mysql 5.5.28 (using mysql-5.5.28-debian6.0-x86_64.deb) ...
  Unpacking replacement mysql ...
  Setting up mysql (5.5.28) ...
  </code></pre>
  
  <p>And... Nothing...</p>
  
  <p>I deleted the previous package <code>sudo apt-get --purge remove mysql</code> and <code>apt-get --purge remove mysql-server</code> then reinstalled it like above, same message, and nothing was installed.</p>
  
  <p>when I do <code>mysql -V</code> I have <code>version mysql Ver 14.14 Distrib 5.1.63, for debian-linux-gnu (x86_64) using readline 6.1</code> and when I do <code>dpkg -l mysql</code> I get version <code>5.5.28</code>... on phpinfo I got <code>5.1.63</code></p>
  
  <p>Is there a step missing to do this installation ?</p>
  
  <p>Thank you very much</p>