[SOLVED] Problem while configuring samba DC

Hi,
I am trying to configure Samba domain controller on CentOS 5.1. When I try to execute smbldap-populate command it fails with the following error

"Please provide a password for the domain root:
/usr/sbin/smbldap-passwd: user root doesn't exist"

Also service smb status says

smbd dead but pid file exists
nmbd (pid 2077 2076) is running...

I am attaching all the relating configuration i.e. slap.cond, smb.com, smbldap.conf, smbldap_bind.conf.

Can anybody tell me what the problem is?
Thanks in advance

I have just reinstalled everything and the configuration worked fine for me. I have also managed to log in to windows machine using LDAP user's credentials :)