[Nut-upsdev] Starting drivers without entry in 'ups.conf'

Arnaud Quette aquette.dev at gmail.com
Wed Jun 6 08:10:00 UTC 2007

2007/6/6, Arjen de Korte <nut+devel at de-korte.org>:
> >> Until the release of nut-2.0.5 it was possible to have a working
> >> configuration without configuring anything in 'ups.conf'. Since then,
> >> this no longer works, as the server will only look for driver sockets
> >> for UPSes that have been configured in 'ups.conf' (since the socket is
> >> named after the UPSname).
> >>
> >> Drivers will use the old naming scheme '<driver>-<port>' if the UPSname
> >> can't be found in 'ups.conf'. From time to time, people are confused by
> >> this, especially since this used to work up to (and including)
> >> nut-2.0.4. Some distributions even offered this as the standard way of
> >> configuring single UPS systems.
> >>
> >> Now that this is no longer possible, I think it is better to refuse to
> >> start in case the UPSname can't be found, to prevent problems later on
> >> in the configuration process. Any thoughts on this?
> >
> > since this behavior has been kept for debug purpose, this suits me fine.
> > It will avoid many users confusion, and is not a big loss for us, the
> > developers.
> > Moreover, this will force packagers to update their legacy scripts.
> >
> > So, you can apply your change to both the trunk and the Testing branch.
> Then I have a couple more questions. Since this also means that UPSes must
> be configured in 'ups.conf', do we still keep the option to configure a
> port on the commandline for starting a driver?
> Currently, the syntax for starting a driver is
>     <drivername> [OPTIONS] [<device>]
> Since we now require that drivers are configured in 'ups.conf', I think we
> could probably leave out the optional <device> here. So my proposal is to
> mandate the use of the '-a id' option (like discussed already) and remove
> the optional specification of the <device> (which would override the
> 'port' from 'ups.conf'). The proposed syntax would then be
>     <drivername> -a <id> [OPTIONS]
> Any thoughts?

fine, and coherent.

Linux / Unix Expert - MGE UPS SYSTEMS - R&D Dpt
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer - http://people.debian.org/~aquette/
OpenSource Developer - http://arnaud.quette.free.fr/

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