[Samba] How to move shares from DC to MS preserving permissions?

Rowland Penny rpenny at samba.org
Fri Apr 1 12:22:19 UTC 2022

On Fri, 2022-04-01 at 14:12 +0200, Denis CARDON via samba wrote:
> Hi Antonio,
> Le 01/04/2022 à 11:53, Antonio Trogu via samba a écrit :
> > I need to move some shares from an AD DC to a new member server
> > joined 
> > to the domain. These shares are on LVMs on iSCSI targets, but when
> > I 
> > mount them on the new member server they are not accessible to the 
> > domain's users except to Administrator. Is it possible to configure
> > the 
> > member server's Samba to preserve users' permissions on the moved
> > shares 
> > without having to propagate them again (on hundreds of TBs)?
> if you are confortable with python-ldb / python-tdb you can use TDB 
> mapping on the member server and recreate the tdb map by script.
> You can read current mapping from idmap.ldb on the domain controller
> and 
> re-inject them in the tdb map on the member server.

Are you sure about that Denis ?
On a a DC, idmap.ldb contains different format records to what a Unix
domain member expects.
I would have thought using rsync to copy the data would be a better


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