[Samba] User mapping

[TSZ]

Hello,

Is here anyone who could tell me where I am able to find FAQ or HOWTO 
about proper user mapping. I fight with it for over a week and I still 
recive sth like this belowe. Does usrmgr work with samba?

[2006/06/11 15:41:29, 1] rpc_server/srv_util.c:get_domain_user_groups(298)
get_domain_user_groups: primary gid of user [root] is not a Domain group !
get_domain_user_groups: You should fix it, NT doesn't like that
[2006/06/11 15:41:29, 0] rpc_server/srv_util.c:get_alias_user_groups(206)
get_alias_user_groups: gid of user root doesn't exist. Check your 
/etc/passwd and /etc/group files
[2006/06/11 15:41:29, 1] rpc_server/srv_util.c:get_domain_user_groups(298)
get_domain_user_groups: primary gid of user [root] is not a Domain group !
get_domain_user_groups: You should fix it, NT doesn't like that
[2006/06/11 15:41:30, 1] smbd/service.c:make_connection_snum(648)
tws (192.168.0.102) connect to service root initially as user root 
(uid=0, gid=0) (pid 4492)
[2006/06/11 15:41:32, 0] rpc_server/srv_util.c:get_alias_user_groups(206)
get_alias_user_groups: gid of user tomek doesn't exist. Check your 
/etc/passwd and /etc/group files
[2006/06/11 15:42:12, 1] smbd/service.c:close_cnum(836)
tws (192.168.0.102) closed connection to service root

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