So you want to have 2 mysql in the same computer? I'm not quite sure about that even I'm having more than 1 mysql, to be exact 3, but on 3 different computers that setup as redundant servers, in which primary down, secondary kick in and take place, third one is just a backup and in worst case will kick in and take place if secondary down too.
Anyway, if you really want to have 2 mysql in same computer, I don't think you can get help for that subject in this forum but some where else.
Have fun,
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