samba - May 2016 - How to move a Samba4 installation from one folder to another

Hi!

We have used Samba 4.1 as an AD-DC for a long time. Our installation based on
Ubuntu 12.04 and Zentyal 3.2 Samba packages.
Now we want to upgrade to Ubuntu 14.04 and a newer Samba version (latest Ubuntu
Version is 4.3.9). The problem is, that
Zentyal 3.2 has used /opt/samba4 as installation path before, but all new Samba
4 versions are installed to /var/lib/samba now.
How can we migrate our Samba 4 installation from /opt/samba4 to /var/lib/samba?
Simply move the Samba directory and change the bind9 configuration does not work
at all. We use Samba also as a print server and after moving the samba directory
all printers and printer drivers are not shown anymore in the Windows printer
administration tool.

Can anybody help us to migrate our Samba installation?
Thx

Julian

On 16/05/16 13:45, Julian Timm wrote:
> Hi!
>
> We have used Samba 4.1 as an AD-DC for a long time. Our installation based
on Ubuntu 12.04 and Zentyal 3.2 Samba packages.
> Now we want to upgrade to Ubuntu 14.04 and a newer Samba version (latest
Ubuntu Version is 4.3.9). The problem is, that
> Zentyal 3.2 has used /opt/samba4 as installation path before, but all new
Samba 4 versions are installed to /var/lib/samba now.
> How can we migrate our Samba 4 installation from /opt/samba4 to
/var/lib/samba? Simply move the Samba directory and change the bind9
configuration does not work at all. We use Samba also as a print server and
after moving the samba directory all printers and printer drivers are not shown
anymore in the Windows printer administration tool.
>
> Can anybody help us to migrate our Samba installation?
> Thx
>
> Julian
>
Easiest way would be to set up a second machine and join this to the 
Zentyal machine as another DC. Then transfer all of the FSMO roles 
(there are 7) to the new DC, demote the first DC and there you are.

Rowland

> Gesendet: Montag, 16. Mai 2016 um 17:00 Uhr
> Von: "Rowland penny" <rpenny at samba.org>
> An: samba at lists.samba.org
> Betreff: Re: [Samba] How to move a Samba4 installation from one folder to
another
>
> On 16/05/16 13:45, Julian Timm wrote:
> > Hi!
> >
> > We have used Samba 4.1 as an AD-DC for a long time. Our installation
based on Ubuntu 12.04 and Zentyal 3.2 Samba packages.
> > Now we want to upgrade to Ubuntu 14.04 and a newer Samba version
(latest Ubuntu Version is 4.3.9). The problem is, that
> > Zentyal 3.2 has used /opt/samba4 as installation path before, but all
new Samba 4 versions are installed to /var/lib/samba now.
> > How can we migrate our Samba 4 installation from /opt/samba4 to
/var/lib/samba? Simply move the Samba directory and change the bind9
configuration does not work at all. We use Samba also as a print server and
after moving the samba directory all printers and printer drivers are not shown
anymore in the Windows printer administration tool.
> >
> > Can anybody help us to migrate our Samba installation?
> > Thx
> >
> > Julian
> >
> 
> Easiest way would be to set up a second machine and join this to the 
> Zentyal machine as another DC. Then transfer all of the FSMO roles 
> (there are 7) to the new DC, demote the first DC and there you are.
> 
> Rowland
> 
> 
> -- 
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba
> 
Thanks Rowland

Setting up a new server is not an option for as at the moment because we are
running other services on the system that also must be migrated to a new server.

I've tried to do a test-migration of the server again today like the way i
did it before.
It really looks like the only thing that isn't working is samba/cups
printing.

When i do a "grep -r '/opt/samba4' /var/lib/samba" i can see,
that there are binary files that still includes the old samba path.

These files are:
/var/lib/samba/var/cache/printing/printer1.tdb.
/var/lib/samba/var/cache/printing/printer2.tdb.
etc.

Is there a way to change the path in this files, or to clean this cache folder?
Maybe printing is working after this.
I think it will save a lot of work, if i only need to fix the print server
problem instead of setting up a new server and migrate all services.

On Mon, 2016-05-16 at 14:45 +0200, Julian Timm wrote:
> Hi!
> 
> We have used Samba 4.1 as an AD-DC for a long time. Our installation
> based on Ubuntu 12.04 and Zentyal 3.2 Samba packages.
> Now we want to upgrade to Ubuntu 14.04 and a newer Samba version
> (latest Ubuntu Version is 4.3.9). The problem is, that
> Zentyal 3.2 has used /opt/samba4 as installation path before, but all
> new Samba 4 versions are installed to /var/lib/samba now. 
> How can we migrate our Samba 4 installation from /opt/samba4 to
> /var/lib/samba? Simply move the Samba directory and change the bind9
> configuration does not work at all. We use Samba also as a print
> server and after moving the samba directory all printers and printer
> drivers are not shown anymore in the Windows printer administration
> tool.
> 
> Can anybody help us to migrate our Samba installation?
> Thx
In a test VM, just re-provision Samba, then learning from where that
puts the files, move the files to the new correct locations.  Finish
with a samba_upgradedns --dns-backend=BIND9_DLZ to fix the hard links.

Or do the reverse, by setting the various paths in the 'new' smb.conf
to point at your old installation directories. 

The most critical paths are 'private dir' and what [netlogon] and
[sysvol] point at, but of course there are other persistent tdbs like
printing that may matter on a site-to-site basis.

I hope this helps.

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

> Gesendet: Mittwoch, 25. Mai 2016 um 12:39 Uhr
> Von: "Andrew Bartlett" <abartlet at samba.org>
> An: "Julian Timm" <X-Dimension at gmx.net>, samba at
lists.samba.org
> Betreff: Re: [Samba] How to move a Samba4 installation from one folder to
another
>
> On Mon, 2016-05-16 at 14:45 +0200, Julian Timm wrote:
> > Hi!
> > 
> > We have used Samba 4.1 as an AD-DC for a long time. Our installation
> > based on Ubuntu 12.04 and Zentyal 3.2 Samba packages.
> > Now we want to upgrade to Ubuntu 14.04 and a newer Samba version
> > (latest Ubuntu Version is 4.3.9). The problem is, that
> > Zentyal 3.2 has used /opt/samba4 as installation path before, but all
> > new Samba 4 versions are installed to /var/lib/samba now. 
> > How can we migrate our Samba 4 installation from /opt/samba4 to
> > /var/lib/samba? Simply move the Samba directory and change the bind9
> > configuration does not work at all. We use Samba also as a print
> > server and after moving the samba directory all printers and printer
> > drivers are not shown anymore in the Windows printer administration
> > tool.
> > 
> > Can anybody help us to migrate our Samba installation?
> > Thx
> 
> In a test VM, just re-provision Samba, then learning from where that
> puts the files, move the files to the new correct locations.  Finish
> with a samba_upgradedns --dns-backend=BIND9_DLZ to fix the hard links.
> 
> Or do the reverse, by setting the various paths in the 'new'
smb.conf
> to point at your old installation directories. 
> 
> The most critical paths are 'private dir' and what [netlogon] and
> [sysvol] point at, but of course there are other persistent tdbs like
> printing that may matter on a site-to-site basis.
> 
> I hope this helps.
> 
> 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
> 
> 
> 
Thank you Andrew!

The only thing that is not working after the upgrade is the samba/cups print
server.
In /var/log/samba/smb.log i get this errors:

Unable to connect to CUPS server localhost:631 - Bad file descriptor
failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL

My smb.conf print options are:

[global]
        spoolss: architecture = Windows x64
        rpc_server:spoolss = external
        rpc_daemon:spoolssd = fork

[printers]
    comment = shared printers
    path = /var/spool/samba
    browseable = Yes
    read only = No
    printable = Yes
    printing = CUPS

[print$]
    comment = print drivers
    path = /var/lib/samba/printers
    read only = No


I don't see my printers in the Microsoft RSAT printer management tool and
this tool also don't show the Windows printer drivers stored in
/var/lib/samba/printers.

How can i fix this?