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echo: linux
to: MAURICE KINAL
from: KEES VAN EETEN
date: 2014-11-24 13:55:00
subject: last one standing

Hello Maurice!

24 Nov 14 01:58, you wrote to me:

 MK> The nice thing about growing your own is that nothing needs disabling
 MK> since it never got built in the first place.

 MK> Mind you nathing for arm ... yet.  :::evil grin:::

 Have you ever looked at "Linux from sratch". It started a number of shell
 scripts, that build very basic system. Later it became more sofisticated and
 the scripts were in XML. The start is very basic, so porting to arm is
 feasable. I have looked at it a couple of years ago. Learned to boostrap
 a OS and decided, that it was next to masochism. I continued with Debian.

 If you look around there are also descriptions of Debian from scratch.
 At least then you can use the prepackaged source code.

 I cannot remember how slackware is organised, it is a log time ago, that my
 systems ran on slackware.

 KvE>> there is also a company that builds a special "shield" with a GPS
 KvE>> receiver for this purpose.

 MK> This sounds interesting.  So far I've only identified one reciever that
 MK> might work out for this idea and have yet to take the plunge.

 http://www.satsignal.eu/Raspberry-Pi-NTP.html

 The above URL is a nice starting point for a Stratum-1 NTP server.

 KvE>> It cannot compete with a tier one server, but it works.

 MK> Please define 'compete'.

 I compared the easy solution with a gps mouse and gpsd/ntpd sharedmemory,
 to Stratum-1 server somewhere on the internet, as can be steen in the
 status my ntpd presented.

 MK> Have you ever priced out a half-decent time
 MK> server?  It wouldn't be too far of a stretch to claim building 100's
 MK> of
 MK> RasberryPi systems for the same cost as one.  There is nothing running
 MK> here that requires better than up to the second accuracy and probably not
 MK> even that.  It should be doable.

 You can read all about at the above URL. Enjoy. ;)

Kees

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