Updating to MySQL 5.5
=====================

You are upgrading your MySQL to version 5.5. Although smooth migration should
be possible, it is highly recommended to backup your data first.

You can learn more about changes from following links:

   http://dev.mysql.com/doc/refman/5.1/en/upgrading-from-previous-series.html
   http://dev.mysql.com/doc/refman/5.5/en/upgrading-from-previous-series.html

Your MySQL is currently *stopped*. You should now backup your data. 

If you are running a multi-instance setup, you have to manage the migration
on your own. Please start your mysql instances and run mysql_upgrade for
each of them:
  
  'mysql_upgrade --protocol=tcp -P <port>'

If you are not running a multi-instance setup, please continue by issuing 
the following commands that will start automatic migration:

   touch /var/lib/mysql/.force_upgrade
   rcmysql restart