Problem migrating from legacy to ntpsec

[Hal Murray]

penninojim at yahoo.com said:
>From syslog:
> ntpd[35421]: REFCLOCK: refclock_params: kernel PLL (hardpps, RFC 1589) not implemented
> ntpd[35421]: REFCLOCK: NMEA(0) set PPSAPI params fails 

The PPS stuff needs something like
  ldattach 18 /dev/ttyS0  # gets /dev/pps0
And that has to be done before ntpd gets started.

What OS/Distro are you using?
On Fedora, I have this in rc.local
  setserial /dev/ttyS0 low_latency
  ldattach 18 /dev/ttyS0  # gets /dev/pps0
  sleep 5
  chown ntp:ntp /dev/ttyS0 /dev/pps0
  service ntpd start


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