[Samba] samba-tool classic upgrade - Next rid problem

Chris Alavoine chrisa at acs-info.co.uk
Thu Jul 4 08:09:33 MDT 2013

Hi there,

I am trying to upgrade my old Samba3 (with LDAP backend) to Samba 4.

I am doing this on a test VM for now as a proof of concept.

When running this command:

/usr/local/samba/bin/samba-tool domain classicupgrade
--dbdir=/home/administrator/samba3/  --use-xattrs=yes
--realm=internal.com /home/administrator/samba3/smb.conf

I get this:

Reading smb.conf
Exporting account policy
Exporting groups
Exporting users
Next rid = 2012040402
Exporting posix attributes
Reading WINS database
Looking up IPv4 addresses
Looking up IPv6 addresses
No IPv6 address will be assigned
Setting up secrets.ldb
Setting up the registry
Setting up the privileges database
Setting up idmap db
Setting up SAM db
Setting up sam.ldb partitions and settings
Setting up sam.ldb rootDSE
Pre-loading the Samba 4 and AD schema
ERROR(<class 'samba.provision.ProvisioningError'>): uncaught exception -
ProvisioningError: You want to run SAMBA 4 with a next_rid of 2012040402,
the valid range is 1000-1000000000. The default is 1000.
line 175, in _run
    return self.run(*args, **kwargs)
"/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/domain.py", line
1318, in run
    useeadb=eadb, dns_backend=dns_backend, use_ntvfs=use_ntvfs)
  File "/usr/local/samba/lib/python2.7/site-packages/samba/upgrade.py",
line 866, in upgrade_from_samba3
    use_ntvfs=use_ntvfs, skip_sysvolacl=True)
line 2155, in provision
line 1757, in provision_fill
    next_rid=next_rid, dc_rid=dc_rid)
line 1227, in fill_samdb
    raise ProvisioningError(error)

So, it appears that my Next rid parameter is too high (namely: 2012040402).
I have run this multiple times and next rid is always the same number.
Before I start decimating my LDAP directory has anyone seen this behaviour

I have done a quick LDAP search and not been able to find any RID's that
would cause such an inflated number so am a bit stumped.

Thanks in advance,

ACS (Alavoine Computer Services Ltd)
Chris Alavoine
mob +44 (0)7724 710 730

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