samba - Oct 2018 - Printer Drivers lost after classicupgrade

Dear samba list

after a classic upgrade
i lose the printer drivers uploaded in NT Domain mode

the drivers files are still present in print$ share

but enumdrivers rpcclient command list no drivers...

did i forgot a file in the dbdir during classicupgrade call or this data 
are not handled during classicupgrade ?

Thanx

On Tue, 2018-10-16 at 18:27 +0200, Arnaud FLORENT via samba
wrote:
> Dear samba list
> 
> after a classic upgrade
> i lose the printer drivers uploaded in NT Domain mode
> 
> the drivers files are still present in print$ share
> 
> but enumdrivers rpcclient command list no drivers...
> 
> did i forgot a file in the dbdir during classicupgrade call or this data 
> are not handled during classicupgrade ?
Printers simply haven't been considered.  You are encouraged not to
make your AD DC do other things, but to put such roles on a member
server.

Sorry,

Andrew Bartlett

-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT   
https://catalyst.net.nz/services/samba

Le 17/10/2018 à 00:16, Andrew Bartlett via samba a
écrit :
> On Tue, 2018-10-16 at 18:27 +0200, Arnaud FLORENT via samba wrote:
>> Dear samba list
>>
>> after a classic upgrade
>> i lose the printer drivers uploaded in NT Domain mode
>>
>> the drivers files are still present in print$ share
>>
>> but enumdrivers rpcclient command list no drivers...
>>
>> did i forgot a file in the dbdir during classicupgrade call or this
data
>> are not handled during classicupgrade ?
> Printers simply haven't been considered.  You are encouraged not to
> make your AD DC do other things, but to put such roles on a member
> server.
>
> Sorry,
>
> Andrew Bartlett
>
these data are stored in registry.tdb right?

is it safe to restore registry.tdb from PDC dbdir to upgraded AD dbdir?