How to install Plesk on Linux with specific pre-installed MySQL version?
If MySQL server is already installed on a server:
Connect to the server via SSH.
Create the file
# touch /root/.my.cnf
Open the file in a text editor. In this example, we are using the vi editor:
# vi /root/.my.cnf
Specify the username and the password of a MySQL user with administrator rights:
user = root
password = "root_password"
Save the changes and close the file.