Dave Baxter wrote:
In article <[email protected]>,
[email protected] says...
On 2010-02-14, Dave Baxter <[email protected]> wrote:
Hi All.
Been trying (again) to setup a FreeBSD GPSDNTP server, as I want to use
the currently used Win2k (With the Meinberg binary etc) box for
something else, having found that running anything else "significant" on
it, "distrubes" the NTPD system somewhat. Nothing wrong with the
Meinberg system (far from it in fact) it's just that I need that machine
to replace an older PC that has finaly expired, so as I have another
with no OS on it, I thought I'd go the FreeBSD route this time.
A good move!
Trimmed things a bit...
Hi Tom.
All that I'm trying now, I have done successfully before, but for
whatever reason it doesnt want to fly now. Not sure if my notes are
bad, DT's website, or the F-BSD docs are different now.
I *Need* PPS support, as I have an app that needs mS accruacy. See:-
http://www.dxatlas.com/Faros/ for details of what I have running, that
needs such data. Plus, for whatever reason, my ISP (Demon/Thus/C&W)
seem unable to provide a stable NTP service these days.
I have at present, a seperate Win2k machine, running the Meinberg port
of NTPD and Dave Hart's serialPPS hack. It works very well, even
surviving Windows updates and a reboots etc!
Trouble is, I want that physical PC for something else, and as I had a
"spare and empty" PC, I decided to revisit the FreeBSD version, after
all, it only took me 2 days last time to get it going.
I've been at it (trying to get FreeBSD working again) this time for over
3 weeks! And am about to lob the thing out of the window.
I find that there is just way too much documentation spread all over the
web etc, all poorly indexed (as a noob sees it at least.) There also
seems to be an assumption, that anyone looking at the info, already
knows what they are looking at. (This is not alone in that respect of
course.)
One huge dificulty I have, is that I do not know how to get it to
remember the "prompt =" settings, or that I use a UK keyboard! I have
to change those settings each and every boot at the moment.
I hear what you are saying re using a later version, but as I have the
install CD's here for this, and it's purely for a local never-to-be-on-
the-web server, on a relatively low powered machine, unless someone says
otherwise, and as I had it working before, I'd prefer at this time to
stick with what I have.
Oh, you still didn't indicate the exact full path to the 'make.conf'
file. I know it's in /etc, but what directory should that spawn from?
I don't have notes showing I had to create that file, only that I edited
what was already there last time. (failing to make a record as to it's
exact location I admit!)
As to the FreeBDS lists/forums etc. Out of the 100's that there are,
which one is recomended? I've been on one or two recently, finding them
somewhat "unfriendly to newbies". Also, like many Linux lists, most
people there don't know anything about what I'm asking, or want to do.
On this list, being timekeeping related, some do, strangley.
I still have a couple of systems with FreeBSD 5.x installed,
but not touched either for a few years. As others have
suggested, a more recent version would be a much better choice
for ntpd.
Do you need "gpsd" for the position information it provides?
I've tried "gpsd" on NetBSD with SHM (type 28) refclock driver
but without using PPS and accuracy was not very good, nowhere
near the <2ms that I see from remote servers whilst I have a
good internet connection. GPS + PPS mostly gives < 10us but
receiver doesn't have good enough view of sky so loses sync
about once a day with offset hitting 10-15ms over last couple
of days, with just 2 of last 7 days continuously below 70us,
mean/rms/max(us) of -2/19/66 and 3/31/66.
David
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