[Samba] 4.5.1 Upgrade Breaks Samba [Was: Schema Change Breaks Replication]

[Adam Tauno Williams]

On Mon, 2016-11-21 at 13:55 +1300, Andrew Bartlett wrote:
> On Sun, 2016-11-20 at 16:50 -0500, Adam Tauno Williams via samba
> wrote:
> > On Sun, 2016-11-20 at 21:11 +0000, Rowland Penny via samba wrote:
> > > On Sun, 20 Nov 2016 15:55:08 -0500
> > > Adam Tauno Williams via samba <samba at lists.samba.org> wrote:
> > > > And it looks like nobody is listening on port 135 -
> > > > [root at larkin26 ~]# netstat --listen --inet --program --numeric
> > > > Active Internet connections (only servers)
> > > > Proto Recv-Q Send-Q Local Address               Foreign
> > > > Address State       PID/Program name   
> > > 
> > > If that is the entire output, not only is nothing listening on
> > > port
> > > 135, Samba doesn't seem to be listening at all, is it running ?
> > 
> > That is the entire output;  samba is not listening.
> > 
> > It is started.
> > 
> > ....
> >  2049 ?        Ss     0:00 sshd: root at pts/0 
> >  2051 pts/0    Ss     0:00 -bash
> >  2486 ?        S      0:00 /usr/sbin/samba -D
> >  2487 ?        Ss     0:00 /usr/sbin/winbindd -D --option=server
> > role
> > check:inhibit=yes --foreground
> >  2493 ?        S      0:00 /usr/sbin/winbindd -D --option=server
> > role
> > check:inhibit=yes --foreground
> >  2502 pts/0    R+     0:00 ps ax
> > [root at larkin26 sernet]# 
> > 
> > [2016/11/20 16:50:40.326604,  0]
> > ../source4/smbd/server.c:372(binary_smbd_main)
> >   samba version 4.5.1-SerNet-RedHat-6.el6 started.
> >   Copyright Andrew Tridgell and the Samba Team 1992-2016
> > [2016/11/20 16:50:40.970014,  0]
> > ../source4/smbd/server.c:479(binary_smbd_main)
> >   samba: using 'standard' process model
> > [2016/11/20 16:50:40.983383,  0]
> > ../source4/rpc_server/dcerpc_server.c:1668(dcesrv_init_context)
> >   dcesrv_init_context: failed to find endpoint server = 'winreg'
> > [2016/11/20 16:50:40.983724,  0]
> > ../source4/smbd/service_task.c:35(task_server_terminate)
> >   task_server_terminate: [Failed to startup dcerpc server task]
> > [2016/11/20 16:50:40.994293,  0]
> > ../source4/smbd/server.c:211(samba_terminate)
> >   samba_terminate of 2479: Failed to startup dcerpc server task
> > [2016/11/20 16:50:41.033979,  0]
> > ../source4/smbd/service.c:98(server_service_startup)
> >   Failed to start service 'smb' - NT_STATUS_INVALID_SYSTEM_SERVICE
> > [2016/11/20 16:50:41.038319,  0]
> > ../lib/util/become_daemon.c:111(exit_daemon)
> >   STATUS=daemon failed to start: Samba failed to start services,
> > error
> > code -1073741796
> > 
> > Any idea why "smb" is not an invalid service?
> 
> We no longer include the ntvfs file server (that is what 'smb'
> referred
> to, it is a historical oddity from before the 4.0 merge) in the
> default
> build.  If you are using bind9, set:
>  server services = -dns
> if you are not usind bind9 for DNS, remove 'server services'.
> Likewise remove any dcerpc endpoint services line. 

Excellent!  Thanks, that resolved the startup problem.  

These DCs have been upgraded every since pre-release...  I am
reasonably confident those are largely the configuration files as they
were generated by the migration [but I am not the only person who has
been in there].

Now on to the dbcheck...  wow, that finds a lot of stuff. :)

> Samba will refuse to start up if the smb.conf referred to invalid or
> not-built components. 

Will replication errors correct themselves 'automatically' after
upgrade [particularly ones related to schema]?

-- 
Adam Tauno Williams <mailto:awilliam at whitemice.org> GPG D95ED383
Systems Administrator, Python Developer, LPI / NCLA