Have existing single DC that is 2008 server but was added to domain created by previous 2003 server. I've decom the 2003 due to old failing hardware and have never raised the forest level. Just did dsquery and verified that it is indeed the minimum level of 2 for samba to support joining the domain. In the settings it fails joining as additional DC saying it isn't the minimum of 2003 which in fact it is.
This is so buried in your pearl interface that I have no idea of where to look and alter anything to fix the check function.
Where do the actual config files of the system reside for all the functions zentyal calls to ie IP addresses gateways and such plus the samba?