Raspberry Pi3+ FreeBSD | MySQL57 package

[Tilly]

Dear port maintainer(s),

Just ran into an issue installing the Mysql57-server package.
Due to installation issue I deleted the port from my system and 
reinstalled it.
Unfortunatelty the /root/.secret_password file is missing so that I 
cannot login after installation.
I tried numerous solutions to solve this, but unfortunaly I get stuck 
every time I want to change the root password from installation.

Can you pls tell me how to solve this issue?

thanks for your support.
TC