Will 'yum remove mysql-server' remove the databases as well?

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http://serverfault.com – I need to update RHEL 5.8 from MySQL 5.1 to the new MySQL 5.5. I have installed the REMI rpm, but I get a long list of package conflicts when trying to upgrade MySQL that way. I think I need to remove MySQL completely, and then do a fresh install of the new version. If I run yum remove mysql-server Will that remove my databases and the /etc/my.cnf configuration file? I am hoping it won't. Thanks (HowTos)