Arch Linux

styne666

Member

Registered: 2014-03-20

Posts: 2

Samba 4.1.6 winbind failing to start

I created a clean install of Arch on the 17th Feb with Samba 4.1.4 as an "active directory domain controller" and provisioned my domain. It was working as expected providing kerberos tickets, shares, DNS, and a few GPOs. I upgraded Samba to 4.1.5 on 4th March and it was still fine. On the 19th March I upgraded Samba to 4.1.6.

About the same time Samba began failing on startup. Unfortunately my earliest journalctl entry is 20th March so I can't quite be sure that it was the upgrade which caused the failure; I've also been playing about with pam_mount. My problem is that I can't find any information on this particular error and I'm not sure where else to look. I've pasted the error message below. It seems winbind won't start but I can't figure out why.

samba[285]: samba version 4.1.6 started.
systemd[1]: Started Samba AD Daemon.
samba[286]: [2014/03/20 21:54:19.100234,  0] ../source4/smbd/server.c:492(binary_smbd_main)
samba[286]: samba: using 'standard' process model
samba[286]: [2014/03/20 21:54:19.116899,  0] ../source4/smbd/service.c:98(server_service_startup)
samba[286]: Failed to start service 'winbind' - NT_STATUS_INVALID_SYSTEM_SERVICE
samba[286]: [2014/03/20 21:54:19.117134,  0] ../source4/smbd/server.c:497(binary_smbd_main)
samba[286]: Starting Services failed - NT_STATUS_INVALID_SYSTEM_SERVICE
systemd[1]: samba.service: main process exited, code=exited, status=1/FAILURE
systemd[1]: Unit samba.service entered failed state.

And this is the output of testparm.

Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[netlogon]"
Processing section "[sysvol]"
Processing section "[private]"
Processing section "[public]"
Processing section "[media]"
Loaded services file OK.
Server role: ROLE_ACTIVE_DIRECTORY_DC
Press enter to see a dump of your service definitions

[global]
        workgroup = XXX
        realm = XXX.EXAMPLE.COM
        server role = active directory domain controller
        passdb backend = samba_dsdb
        kerberos method = secrets and keytab
        template shell = /bin/bash
        winbind enum users = Yes
        winbind enum groups = Yes
        winbind use default domain = Yes
        winbind refresh tickets = Yes
        server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate
        rpc_server:tcpip = no
        rpc_daemon:spoolssd = embedded
        rpc_server:spoolss = embedded
        rpc_server:winreg = embedded
        rpc_server:ntsvcs = embedded
        rpc_server:eventlog = embedded
        rpc_server:srvsvc = embedded
        rpc_server:svcctl = embedded
        rpc_server:default = external
        idmap_ldb:use rfc2307 = yes
        idmap config * : backend = tdb
        acl group control = Yes
        inherit acls = Yes
        map acl inherit = Yes
        map archive = No
        map readonly = no
        store dos attributes = Yes
        vfs objects = dfs_samba4, acl_xattr

[netlogon]
        path = /var/lib/samba/sysvol/xxx.example.com/scripts
        read only = No

[sysvol]
        path = /var/lib/samba/sysvol
        read only = No

[private]
        path = /export/home/%D/%U

[public]
        path = /export/public

[media]
        path = /export/media

Does anyone have any suggestions on debugging steps? Preferably without losing the contents of the AD.

lianse

Member

Registered: 2014-03-22

Posts: 6

Re: Samba 4.1.6 winbind failing to start

I had exactly the same issue after rebooting my samba DC yetserday. I checked pacman.log for what had changed since last sucessfull startup and correlated my issue to this upgrade:

[2014-03-21 18:40] [PACMAN] upgraded talloc (2.0.8-2 -> 2.1.0-1)
[2014-03-21 18:40] [PACMAN] upgraded tevent (0.9.19-1 -> 0.9.21-2)

I've found two workarounds for this issue:

1. downgrading these two packages back to their old version

2. BUG #39557: adding /usr/lib/tevent to a newly created /etc/ld.so.conf.d/tevent.conf file and running ldconfig.

Last edited by lianse (2014-03-22 10:05:41)

stuartiannaylor

Member

Registered: 2014-03-24

Posts: 17

Re: Samba 4.1.6 winbind failing to start

damn there was a bug report with a fix. I cant find it ? search for samba4 as it was there.

I downloaded and set up archlinux for the first time the other day and apart from the bug was well happy.
Also having 4.1.6 the current version of samba I think is a first for any distro in their packages.
Really like arch its a little gem

The fix I can't remember the exact syntax and basically just had to create a file that had a single line making a config point at talloc as it has moved and is located elsewhere.

I got arch and 4.1.6 going and have a virtualbox ova on https://sourceforge.net/projects/samba4all/

styne666

Member

Registered: 2014-03-20

Posts: 2

Re: Samba 4.1.6 winbind failing to start

Thanks lianse: the ldconfig work around worked a treat.