[Samba] Trouble during classicupgrade

[Rowland Penny]

On Wed, 29 Nov 2017 18:57:53 +0100
Andreas Heinlein via samba <samba at lists.samba.org> wrote:

> Hello,
> 
> I just wanted to say that after some hours of digging, I found the
> problem. It turned out to be quite trivial...
> 
> The winbind package was missing on that machine. This is a separate
> package in Debian; after installing it everything seems to work.

Debian used to install the winbind package when you installed the
'samba' package, you now need to install it separately.
 
> 
> There were two factors that led me to remove winbind at first:
> 1. The wiki says "Configuring Winbindd on a Samba AD DC - Only
> required if using the DC as a file server". That is misleading,
> obviously winbindd itself is actually required.

You are confusing setting up 'winbindd' with installing the winbind
package.

> 2. The Debian winbind package has a weird bug that causes it to
> unconditionally try to start winbindd as a standalone service even on
> a samba AD DC (https://bugs.debian.org/863285), which obviously
> fails. I came across that error, tried to start winbindd manually and
> got a message explaining "server role = 'active directory domain
> controller' not compatible with running the winbindd binary. You
> should start 'samba' instead, and it will control starting the
> internal AD DC winbindd implementation, which is not the same as this
> one." That too led me to the assumption that a separate winbind
> package is now no longer needed and I could remove it.

Debian needs to deal with its bug, it also needs to update that
message, samba no longer starts its internal winbind (I think it has
been removed), it starts the separate 'winbindd' deamon, this is why
you need the winbind package.
  
> 
> Only after looking through the logs again, I found the message that
> samba failed to start /usr/sbin/winbindd, which is in the winbind
> package.
> 
> So the actual problem is now gone, but maybe someone wants to look
> into these potentially misleading messages.
> 
The Samba wiki is mainly written around using a self compiled Samba and
not on a package install, but you have made a few valid points, so I
will look into updating the wiki.

Rowland