[Samba] Upgrading Samba

[Douglas Bagnall]

On 7/02/19 6:05 AM, Rowland Penny via samba wrote:

>> If I have a domain running (2) 4.7.x DC's and I build 2 new DC's with
>> 4.9.latest, join the domain and make them DC's and then decommission
>> the old DC's, is that expected to work?
>>
>> Regards,
>>
> 
> Not entirely sure, but I think the answer is likely to be 'No'
> I think the problem is the GUID Index mode introduced at 4.8.0, Your
> 4.7.x DC's will not have this, but the 4.9.x DC's will probably expect
> this. Only way to find out, try it ;-)

Actually, yes it generally does work. The replication protocols don't
care about internal database details like indexes.

You can do this in-place if you stop a DC, upgrade Samba, then rejoin
the other DC.

cheers,
Douglas