[Samba] How to safely rejoin an upgraded linux domain member?

[Luis Peromarta]

Typo: rsync -AXav (no z) unless bandwidth is a problem.
On 27 Feb 2025 at 17:05 +0000, Luis Peromarta via samba <samba at lists.samba.org>, wrote:
> The leave / join process of a samba server is straight forward and should give no grief.
>
> Build the new server, sync the data with rsync -AXavz (will preserve all xattr) from old to new (with old server running and in ops) also sync the smb.conf file. I understand shares will be equal if not update smb.conf. On transition day advise of downtime, do a final rsync (should be quick).
>
> Stop samba, remove smb.conf and power off old server.
>
> Join the new server with same name. Users should not notice the change.
> On 27 Feb 2025 at 15:46 +0000, Jakob Curdes via samba <samba at lists.samba.org>, wrote:
> >
> > Hi, we have to upgrade one large server, which is a domain *member* of
> > an AD domain driven by two samba4 DCs, to the newest Ubuntu version, and
> > due to the size we cannot just to it in one short downtime.
> > So I created a clone, deactivated all samba services and did the update.
> > It currently has a different name, and has not yet been rejoined to the
> > domain. What is a safe way to replace the old with the new server, using
> > the same name (as otherwise we need to rename all fileshares mounted on
> > clients)? I would think I leave the domain with the old server and then
> > join the domain with the new one under the same name. OR does that lead
> > to problems?
> >
> >
> > Best regards, Jakob
> >
> >
> >
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