we have to migrate an existing Zimbra OSS 5.0.9 installation from a Debian 4.0 32Bit Box to a new 6.0.6 Network Edition Install on a new Server with Ubuntu 8.0.4 LTS 32 Bit.

There are only 6 users on this system. So I was wondering if it would be
safe to do a clean new install on the new box, create the 6 users and just to
export / import the Userdata via ZWC ?

Does anybody know if this is possible? Any pointers and recommendations how to do this with minimal effort are welcome.

Thank your very much for your help.