Need urgent help with samba4 DC re-join

[Andrew Bartlett]

On Wed, 2012-08-01 at 13:30 +0200, Andreas Oster wrote:
> Am 18.07.2012 08:03, schrieb Andrew Bartlett:
> > On Wed, 2012-07-18 at 07:10 +0200, Andreas Oster wrote:
> > 
> >> Hello Andrew,
> >>
> >> unfortunately dbcheck did not work. The following error messages showed up:
> >>
> >> ERROR: wrong instanceType 11 on DC=DomainDnsZones,DC=novanetwork,DC=loc,
> >> should be 13
> >> ERROR(<type 'exceptions.AttributeError'>): uncaught exception -
> >> 'dbcheck' object has no attribute 'modify_instancetype'
> >>   File
> > 
> > Thanks.  I've updated my branch with what I hope will be a fix.  This
> > time I've modified a local DB to replicate your error condition, and
> > confirmed it all works.
> > 
> > However, it will only allow the instanceType to be changed, the
> > objectClass can't be fixed yet.  But if you can confirm what I have so
> > far works for you, I'll see what I can do about the rest.
> > 
> > Thanks,
> > 
> > Andrew Bartlett
> > 
> Hello Andrew,
> 
> any news regarding adding some code to dbcheck to fix the objectClass
> issue in my samba4 setup ?
> 
> Thank you very much.

You have been incredibly patient over the past more than a month on this
issue.  I've not had a chance to look into this properly.  

As to getting your specific database out of this specific situation,
this might work (on a backup!):

Run (change for your domain):

 ldbedit -H
private/sam.ldb.d/DC=DOMAINDNSZONES,DC=SAMBA,DC=EXAMPLE,DC=COM.ldb -s
base -b DC=DomainDnsZones,DC=samba,DC=example,DC=com

Change the object to have:
dn: DC=DomainDnsZones,DC=samba,DC=example,DC=com
objectClass: top
objectClass: domain
objectClass: domainDNS
description: Microsoft DNS Directory
instanceType: 13

Then run:

 samba-tool dbcheck -H private/sam.ldb --cross-ncs --reindex
 samba-tool dbcheck -H private/sam.ldb --cross-ncs

This will ensure the indexes and replPropertyMetaData is updated after
this generally NOT RECOMMENDED action of editing the raw database.

Andrew Bartlett
-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org