Samba3 / Samba4 migration -- question

[Adam Tauno Williams]

Quoting Gémes Géza <geza at kzsdabas.hu>:
>>> But OpenLDAP stores all these database attributes that have nothing
>>> to do with Samba that all these other applications rely on? What if
>>> an infrastructure keeps Samba 3 Servers in place in some locations
>>> for compatibility reasons? The scary part is OpenLDAP going away.
> I'm currently experimenting a similar upgrade scenario, where an
> OpenLDAP+Heimdal+Samba3 controlled domain would get upgraded to Samba4.
> My Heimdal+OpenLDAP critical apps are:
> OpenAFS
> SSH
> Apache+mod_krb5
> PowerDNS (ldap module)
> ISC DHCPD (with an ldap database)
> Sudoers

Were you using RFC2307/NIS schema for posixUser uid/gid information?   
I'm still researching how to migrate that information - I'd like to  
keep the host configurations as similar as possible.