[Samba] Best Way to install a Samba4 DC with Samba3 Memberserver

[Hauke Homburg]

Hello,

Ich want wo install a SAMBA4 DC with an SAMBA 3 Memberserver.

Ich want to install the Linux with Debian Whezzy and the SAMBA 4 
Packages from Sernet.

I think i have the Choice to install the SAMBA 3 Server with the Debian 
Packages oder with the Sernet Packages. What is the best Way to do this?

Greetings

Hauke Homburg