[Samba] A device attached to the system is not functioning - When adding a computer to the domain

Chris Beach chrisb at pintys.com
Thu Dec 30 11:35:47 MST 2010

Hi all,

I just setup a Samba 3.3.14, with an ldap back-end.

I migrated the ldap back end and samba shares from my old samba server. I've
found when adding a machine (WinXP) to the domain, I get the following error
on XP:

The following error occurred attempting to join the domain "Blah.com":
A device attached to the system is not functioning.

in my /var/log/messages I have:

Dec 30 09:40:24 hap smbd[29379]: [2010/12/30 09:40:24, 0]
Dec 30 09:40:24 hap smbd[29379]: pdb_get_group_sid: Failed to find Unix
account for OAKRND02$

repeated about 6 times.

My smb.conf looks like this for the scripts to run:

* add machine script = /usr/sbin/smbldap-useradd -w "%u"
add user script = /usr/sbin/smbldap-useradd -m -a "%u"
delete user script = /usr/sbin/smbldap-userdel -r "%u"
add group script = /usr/sbin/smbldap-groupadd -p "%g"
delete group script = /usr/sbin/smbldap-groupdel "%g"
add user to group script = /usr/sbin/smbldap-groupmod -m "%u" "%g"
delete user from group script = /usr/sbin/smbldap-groupmod -x "%u" "%g"
set primary group script = /usr/sbin/smbldap-usermod -g "%g" "%u"

ldap passwd sync = yes
passwd program = /usr/sbin/smbldap-passwd %u
passwd chat = "Changing password for*\nNew password*" %n\n "*Retype new
password*" %n\n"*

When I do an LDAP search, I see there is an entry in LDAP for it the
machine, so some of the add machine script must have worked:

ldapsearch -b "dc=mydomain,dc=com" -x "(uid=oakrnd01$)"

# OAKRND01$, Computers, mydomain, com
dn: uid=OAKRND01$,ou=Computers,dc=pintys,dc=com
uid: OAKRND01$
sambaSID: S-1-5-21-3318375643-2463009161-752822222-41448
sambaPrimaryGroupSID: S-1-5-21-3318375643-2463009161-752822222-515
sambaAcctFlags: [W ]
objectClass: sambaSamAccount
objectClass: account
objectClass: top
objectClass: inetOrgPerson
objectClass: posixAccount
sambaPwdCanChange: 1291378566
sambaPwdMustChange: 1299154566
sambaNTPassword: EED67D5B90ED8B5C2C168FB90DC4D313
sambaPwdLastSet: 1291378566

Also, I get results in pdbedit:

[root at happiness ~]# pdbedit -v oakrnd01$
Unix username:        OAKRND01$
NT username:          OAKRND01$
Account Flags:        [W          ]
User SID:             S-1-5-21-3318375643-2463009161-752822222-41448
*pdb_get_group_sid: Failed to find Unix account for OAKRND01$*
*Primary Group SID:    (NULL SID)*
Full Name:
Home Directory:
HomeDir Drive:
Logon Script:         logon.exe
Profile Path:
Domain:               MYDOMAIN.COM
Account desc:
Munged dial:
Logon time:           0
Logoff time:          never
Kickoff time:         never
Password last set:    Fri, 03 Dec 2010 06:16:06 CST
Password can change:  Fri, 03 Dec 2010 06:16:06 CST
Password must change: Thu, 03 Mar 2011 06:16:06 CST
Last bad password   : 0
Bad password count  : 0


/usr/sbin/smbldap-useradd -w OAKRND02
failed to add entry: Unexpected EOF at /usr/sbin//smbldap_tools.pm line 616.

And then my slapd dies out (crashes)... this same behaviour happens when
trying to use USRMGR.exe to add a new user (but doing it manually via
smbldap DOES work for adding a new user).

What's most annoying is I tested joining a Windows 7 machine to the domain
before I went live with this server, and it was successful, so I've no clue
why this isn't working now

Any help I can get it REALLY APPRECIATED, right now I've got a PC I can't
get on the domain, so a user how can't work.

More information about the samba mailing list