Upgrade MySQL 5.1 to 5.5 in cpanel UpgradeMySQL5.1 to 5.5 in cpanel How to upgrademysql5.1 to 5.5... 5.1 to 5.5 using cPanel. I have already tested on one of my server and it works well.
You can check the process at cPanel upgradeMySQL5.1 to 5.5.
cPanel upgrade MySQL 5.1 to 5.5
cPanel upgradeMySQL5.1 to 5.5 - UpgradeMySQL5.1 to MySQL5.5 through... MySQL5.5 and use can use the cPanel
wizard to upgrade your MySQL server 5.1...: UpgradeMySQL5.1 to 5.5 through cPanel
Here are steps to upgradeMySQL Server