install 5.7.31 together with 8.0.21 on ubuntu

[Peter Schmidt]

Sorry for the double post but before I answered to myself accidentally.

Hi experts,

again a question about having two versions:

I understand I can use apt only if I have one version of MySQL. The req now is to install 5.7.31 together with 8.0.21

I am trying to find the easy way using precompiled binary with mysqld --initialize

but where to find it? Could somebody please point me to the precompiled binary for ubuntu 18.04.1

Thanks a lot

Peter