On 2013/09/06 07:42, Nick Holland wrote: > On 09/06/13 04:50, Stuart Henderson wrote: > > On 2013/09/05 20:03, Barry Grumbine wrote: > >> Non-VM use case: The BeagleBone Black has no RTC, so -j could be > >> useful for cheap little ARM development boards. > > > > -s is fine for that (and the same for those of the alix boards with > > no rtc battery, etc). > > > > ...unless the machine isn't attached to the network when initially > powered up. > > Same goes for any machine with a dead RTC battery that may not have a > good network connection at boot, and/or you don't want to slow the boot > down by 15 seconds if there is no network connection.
Another similar case, also not handled particularly well at present, is where you pick up your default route from a dynamic routing protocol so there's no default route when ntpd starts. It seems to me that improving -s to cope better in this situation would be useful, and safer than -j in the event of an upstream NTP server going bad. > This shocks people, but I often use a computer where there is no > network connection. Waiting for that 15 second boot delay is annoying. Me too, I usually ^C there if I'm offline.
