[Samba] Easy conversion/import/use of old samba databases(passwords) to samba4?

Vesa Roto vesa.roto at xifof.com
Mon Jul 7 00:33:28 MDT 2014

Thank you,
It seems that it was indeed files in wrong places.

On Tue, Jun 24, 2014 at 10:14 AM, Andrew Bartlett <abartlet at samba.org> wrote:
> On Mon, 2014-06-23 at 13:42 +0300, Vesa Roto wrote:
>> Background: A server running samba 3.6.3 on ubuntu 12.04 had a raid
>> controller failure that also  corrupted the disks. I set up temporary
>> server by simply installing ubuntu 12.04 and copying over the
>> configuration(/etc/samba, /var/lib/samba passwd shadow groups gshadow)
>> from backup to a reserve workstation and it has worked fine as reserve
>> server.
>> Setup: uses a single server master domain controller with tdb backend.
>> Test: The replacement parts arrived and I installed ubuntu 14.04 on
>> the main server. However ubuntu 14.04 only comes with samba 4.1.6 and
>> there is no samba 3 package.
>> Copying over the files and trying it shows that samba 4.1.6 starts
>> fine with the old configuration and tdb files from the old samba, but
>> the passwords do not work for users and machines. If I reset the
>> password manually and rejoin the workstation to the domain things
>> seems to work.
> I suspect you are not putting the tdb files in the right place.  Samba
> 3.x machines can upgrade to Samba 4.x without changing to being an AD
> DC, but we did move some files around, and on a same-host situation that
> would have been handled by the package scripts.
> Look at where passdb.tdb is created on your new host, and put the backup
> file there.
>> I would prefer to have the downtime on the server as short as possible.
>> I tried looking at the samba 3 to 4 transition guides and they all
>> either seem to have instructions for in place upgrade(that would
>> require me to install samba3 first on the main server or samba4 on the
>> temporary server) or by adding an extra server to a domain using ldap.
> If you wish to use this as an opportunity to become an AD DC, see the
> --dbdir option to 'samba-tool domain classicupgrade', and put all your
> tdb files there.  That script should take care of the rest.
> https://wiki.samba.org/index.php/Samba_Classic_Upgrade_%
> 28NT4-style_domain_to_AD%29
> Andrew Bartlett
> --
> Andrew Bartlett                       http://samba.org/~abartlet/
> Authentication Developer, Samba Team  http://samba.org
> Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

Vesa Roto

Xifof Oy

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