David Newman wrote:

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Greetings. I have a FreeBSD 6.1 x86_64 system and an HP 58503A GPS
receiver I'd like to use as a time source. The HP receiver displays time
via tip or minicom, but when loading ntpd, FreeBSD returns this error:

 refclock_newpeer: clock type 26 invalid

This is with the stock install of FreeBSD; I didn't install ntp from
ports, and I have not recompiled the kernel. (If I do need to recompile
the kernel, please let me know what option(s) to use.)

Here is the relevant part of /etc/ntp.conf:

server 127.127.26.0 prefer
server us.pool.ntp.org
server us.pool.ntp.org
server us.pool.ntp.org
server us.pool.ntp.org

ntpq sees only the four pool servers (duh).

Also, I symlinked the serial port to /dev/hpgps0:

lrwxr-xr-x  1 root  wheel  10 Sep  6 00:25 /dev/hpgps0 -> /dev/cuad1

I'm new to ntp. What's missing here?


Probably the ntpd driver for your HP 58503A (driver 26). Build a copy of the reference distribution from source! By default, all drivers are built and linked. Don't know what the BSD distribution does by default but it looks as if it doesn't build all the refclock drivers.

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