[Samba] migrate DC from very old version of samba

[Rémi]

Virgo Pärna via samba <samba at lists.samba.org> writes:

> On 31.03.2025 15:47, Rémi via samba wrote:
>> Rowland Penny via samba <samba at lists.samba.org> writes:
>> 
>>> On Mon, 31 Mar 2025 13:51:17 +0200
>>> Rémi via samba <samba at lists.samba.org> wrote:
>>>> OTOH I can fire up a bookworm vm on another recent server, and install
>>>> bookworm-backport samba there.
>>>
>>> This may work, but you may have to it two stages, add a machine running
>>> Debian buster, then bookworm.
>> any specific reason ?
>> 
>
> 	As far as I know, Debian does not support upgrades skipping release.

sure, but I don't intend to upgrade the existing ad server. That would
mean upgrade to debian 8 > 9 > 10 > 11 > 12, a nightmare for me, the
users, and so many possibilities for breakage.

I intend to join the ad with samba on a new server (bookworm), sync
idmap and sysvol from the old server, test, then transfer the FSMO roles
from the old server to the new one, test again, and finally demote the
old server.

That way I don't have to upgrade debian.

Rowland suggested that I first join the ad with a buster server and
transfer everything there, then do the same with a bookworm server. I
wonder if there is something specific in bookworm's samba that warrants
that extra step.

Thanks,
-- 
Rémi