[Samba] Error while demoting Samba 4 DC

Rowland Penny rpenny at samba.org
Fri May 26 07:06:58 UTC 2017

On Fri, 26 May 2017 00:48:50 -0300
Marcio Demetrio Bacci via samba <samba at lists.samba.org> wrote:

> Hi,
> I have 2 DC Samba 4 in my network.
> My new DC is Samba 4.6.3
> My Old DC is Samba 4.2.1
> I want demote my DC (old) with Samba 4.2.1, but the following message
> appears:

Known problem, so much so that your new DC has a way of fixing it ;-)

Transfer anything you need from the old DC to the new DC (FSMO roles,
files, etc), then turn it off (never to come back)

Now run the demote command on the new DC like this:

samba-tool domain demote --remove-other-dead-server=REMOVE_OTHER_DEAD_SERVER -U Administrator

see 'samba-tool domain demote --help' for more info.


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