[Samba] Migration strategy

[Christian Naumer]

Hi Anders,
I think rsync could help. From the man page:

The preservation of ownership will associate matching names by default, 
but may fall back to using the ID number in some circumstances (see also 
the --numeric-ids option for a full discussion).

If the names are the same it should work. But I have not tried this. You 
should not use "-X, --xattrs preserve extended attributes" because as 
far as I know that is where Samba stores the Windows ACLs and they 
contain the old SID.

Regards

Christian



Am 20.11.25 um 12:19 schrieb Anders Östling via samba:
> I am in the process of setting up a new AD based on only Samba
> servers. The current domain has a number of Samba file servers and 2
> windows dc's that are going to be retired.
> 
> The accounts and groups in the new AD will have the same names (but
> new SID's) and be created directly in the new domain. What I need to
> figure out is how I can migrate data on the file servers to the new
> servers without bringing with me the old ACL's. All directories and
> files are owned by specific groups in the current domain.  Therefore I
> need to find a way to copy (rsync,robocopy, tar, ...) the directory
> trees to the new servers.
> 
> What would be the correct way to do this? I.e end up with a directory
> tree where the files have "NEW-AD\Owner-group" instead of
> "S-RANDOM-SID" as owner.
> 
> /Anders
>