Udo van den Heuvel wrote: > May 5 20:24:53 epia ntpd[4949]: refclock_nmea: cannot find PPS path > "/dev/ttyS0" in the system Of course there is a /dev/ttyS0. 2.6.20.7 works as expected. Does this mean my ntpd has to be recompiled to be usable with 2.6.21.1?