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Date:      Sun, 22 Jul 2018 10:34:12 -0600
From:      Ian Lepore <ian@freebsd.org>
To:        bob prohaska <fbsd@www.zefox.net>
Cc:        Pete Wright <pete@nomadlogic.org>, FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: ntpd as ntpd user question
Message-ID:  <1532277252.1344.105.camel@freebsd.org>
In-Reply-To: <20180721220925.GA40238@www.zefox.net>
References:  <5b90c49f-4616-9ef7-28a1-6445137245ef@nomadlogic.org> <1532191655.1344.80.camel@freebsd.org> <4b7acbd2-0230-345c-4370-24a72d0b492a@nomadlogic.org> <1532193285.1344.83.camel@freebsd.org> <20180721174722.GA40167@www.zefox.net> <1532196850.1344.87.camel@freebsd.org> <20180721220925.GA40238@www.zefox.net>

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On Sat, 2018-07-21 at 15:09 -0700, bob prohaska wrote:
> On Sat, Jul 21, 2018 at 12:14:10PM -0600, Ian Lepore wrote:
> > 
> > 
> > I can't see any way that installkernel would lead to the complaint
> > about the ntpd user not existing; that check is tied to the
> > installworld target.
> > 
> My mistake. I was sleepy and in a hurry. The error message was in
> installworld
> and my attempt to adduser ntpd concluded with an error:
> Locked     : yes
> OK? (yes/no): yes
> pw: Bad id 'ntpd': invalid
> adduser: ERROR: There was an error adding user (ntpd).
> On reboot the old ntpd set the clock and I thought all was well.
> 
> The failure is a little surprising, is ntpd a reserved name?
> 
> The machine is re-running buildworld/installworld from a clean start,
> so presumably it'll halt over the same error again. When that
> happens, 
> what's the simplest way to recover? Mergemaster is a big hammer,
> something
> less comprehensive might suffice, even manual editing of files.  
> 
> There's minimal customization on the machine, basically /etc/fstab, 
> /etc/rc.conf and /etc/passwd. Nothing else of real value, so if I
> kill 
> it in the attempt it won't be a disaster.
> 
> 
> Thanks for waking me to my blunder...
> 
> bob prohaska
>  

The important changes that mergemaster would handle are:

  - add ntpd user, id 123
  - add ntpd group, id 123
  - set ntpd_flags="" in /etc/defaults/rc.conf
  - install the new /etc/rc.d/ntpd

You can add the user by doing vipw and pasting the ntpd line from
/usr/src/etc/master.passwd, IMO easier than doing adduser and answering
all the questions.

-- Ian



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