[Samba] Unable to join a W2008_R2 as DC

Rowland penny rpenny at samba.org
Thu May 7 16:23:36 UTC 2020

On 07/05/2020 15:57, Marcio Merlone via samba wrote:
> Hi,
> I am trying to add a Windows server 2008 R2 as a DC on my domain 
> running Samba 4.12.1 on Debian Buster. It fails complaining about 
> incompatible domain level.
> root at sambadc:~/bin# samba-tool domain level show
> Domain and forest function level for domain 'DC=example,DC=tld'
> Forest function level: (Windows) 2008 R2
> Domain function level: (Windows) 2008 R2
> Lowest function level of a DC: (Windows) 2008 R2
> root at sambadc:~/bin#
> Google and this list archive did not help, any hint?
Never tried this (yet), but I think it is all down to the schema version 
and function level, see here:



And the two bugs mentioned in the last link:



I think that you will need to ensure you have schema version 69 and 
forest and domain function levels 2012R2 before you will have any chance 
of it working. Be aware that this is all guess work, so you might want 
to clone one of your DC's and test joining to that.


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