[Samba] ad2003 schema while forest/domain at 2008R2 level

Denis Cardon dcardon at tranquil.it
Wed Sep 28 15:37:32 UTC 2016

Hi everyone,

I came across this issue today while upgrading a samba4 AD. The 
forest/domain level is 2008R2, however the schema partition is actually 
missing the msDS-isRODC attribute (and probably a few others). It makes 
the ADUC console to failed on that entry below. Here is the samba log 
message (which is quite explicit :-)

Sep 28 16:55:36 srvads samba[27900]: [2016/09/28 16:55:36.819666,  0] 
Sep 28 16:55:36 srvads samba[27900]:   ldb: acl_read: 
CN=SRVADS,OU=Domain Controllers,DC=domain,DC=lan cannot find 
attr[msDS-isRODC] in of schema

I don't know how I messed up the schema partition, and since I don't 
have any side effect but the ADUC failure message when clicking on the 
dc entry (everything else works fine), I think that error is lying there 
for quite some time. The domain was upgraded from a MSAD 2003 domain 
three or four years ago.

So my question is : since my DC is already on 2008R2 domain/forest 
level, is there anyway I can force the schema upgrade to 2008R2 
independently of the samba-tool domain raise command line?



Denis Cardon
Tranquil IT Systems
Les Espaces Jules Verne, b√Ętiment A
12 avenue Jules Verne
44230 Saint Sébastien sur Loire
tel : +33 (0)

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