Migration from Tamino 3.1.1.8 to 4.1.4.1

Hello

I want to migrate 4 databases from Tamino 3.1.1.8 to Tamino 4.1.4.1 on Linux Red Hat 7.2 (Intel architecture). When I have to install Tamino 4.1.4.1, the instalation must override the old one, i.e. the instalation parameters (location, ports) must be the same as the tamino 3.1.1.8 instalation? I’ve tried otherwise, I mean i’ve installed the Tamino 4.1.4.1 with different parameters than Tamino 3, but these two Tamino servers don’t “sees” one each other.

Thanx in advance

Daniel