samba - Apr 2014 - add Samba 4 to existing classic NT4 domain (and upgrade to AD)

Hi,

We currently have this setup (inherited from my predecessor):
Samba 3.2.x domain with custom (mysql) passdb backend. This means the 
passdb *.tdb files are not being updated and all is retrieved & stored 
in MySQL.

I would like to migrate this to a 'regular' Samba 4.x setup with AD

Since the *.tdb files are not updated, I cannot copy the *.tdb files 
and go the classicupgrade route (from the wiki)
And it seems all other 'joining a domain' howto's in the wiki
describe
joining an AD domain, not an (old/classic) NT4 domain.

Ignoring the custom backend story, I guess my question is: can I join a 
Samba 4 to an existing (classic) NT4 domain and upgrade it to use AD?

One solution would be to first join the domain with a samba 3.6.x 
server, and then later migrate that one to 4.x

Is that the only solution or is there a direct way?

Regards,

Bram Matthys.

Hi,

Bram Matthys schreef op 2014-04-03 12:16:
> We currently have this setup (inherited from my predecessor):
> Samba 3.2.x domain with custom (mysql) passdb backend. This means the
> passdb *.tdb files are not being updated and all is retrieved & 
> stored
> in MySQL.
>
> I would like to migrate this to a 'regular' Samba 4.x setup with AD
>
> Since the *.tdb files are not updated, I cannot copy the *.tdb files
> and go the classicupgrade route (from the wiki)
I just received a reply from Jelmer Vernooij. Just sharing in case 
others need this:
You can use "pdbedit -i mysql:passdb -e tdbsam:passdb" etc. to convert
between the backends (or at least in 3.2.x).

Haven't tested it fully, but it seems to work, so then my original 
question about Samba 4 joining a classic NT4 domain no longer applies.
(Though it may still be useful to others, I suppose)

Regards,

Bram.