[Samba] migrate DC from very old version of samba

[Luis Peromarta]

4.1 to 4.21 is 20 samba versions. Too large leap I’d say, not that it won’t work but there’s a chance it may not.

If you have a good backup (hopefully you have a KVM machine) you’re probably ok to just try and see.

I’d follow notes in samba.bigbird.es they are newer for basic setup.

Regards.


On 31 Mar 2025 at 14:08 +0100, Rémi via samba <samba at lists.samba.org>, wrote:
> 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
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/options/samba