Startup time on Raspberry Pi

Eric S. Raymond esr at thyrsus.com
Tue Apr 18 17:35:22 UTC 2017


Hal Murray <hmurray at megapathdsl.net>:
> 
> >> I just rebooted a Raspberry Pi.  Somebody is setting the
> >> system time.  I don't know who/where.
> 
> > I do.  There's a special hack to save the time at shutdown and restore it at
> > startup.  The assumption is that that sort of reboot happens fast enough so
> > that the restored time is not too horrible for syslogging. 
> 
> >From the log file:
> 18 Apr 01:12:08 ntpd[434]: 0.0.0.0 c41c 0c clock_step +6.249811 s
> 
> That seems consistent with your description.
> 
> I'm curious.  I'd like to look at the code.  Do you know where it is located? 
>  Name of program or similar?  ...

I do not.  Somebody told me how it works, but I have not examined the
mechanism myself.
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