Re: [Emc-users] adding linuxcnc repos to rpi

[Sebastian Kuzminsky]

On Mon, Aug 20, 2018 at 10:14 AM TJoseph Powderly  wrote:
> i installed raspbian jessie from
> http://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/2017-07-05-raspbian-jessie.zip

Is raspbian compatible with regular debian?  I don't know.

All our packages are built for regular debian.


> then found linuxcnc deb at
> http://linuxcnc.org/jessie/2.7uspace/binary-armhf/linuxcnc-uspace_2.1.14_armhf.deb
> thats a real easter egg!

The direct link is:
http://linuxcnc.org/dists/jessie/2.7-uspace/binary-armhf/linuxcnc-uspace_2.7.14_armhf.deb

But the preferred way to get it is by adding an apt line, like the one
you added below.


> I was worried about the deps needed by the install, so
> in synaptic, i added repodeb http://linuxcnc.org/  jessie base

If you use the following apt line instead, you can install and upgrade
linuxcnc via apt:
deb http://linuxcnc.org/  jessie base 2.7-uspace

(That's like your apt line above, plus "2.7-uspace" at the end to pick
up LinuxCNC itself.)


> then exited synaptic
> then ran sudo apt-get update and got
>
> "Failed to fetch htt://linuxcnc.org/dists/jessie/Release
> unable to find expected 'base/binary-armhf/Packages'
> in Release file ( wrong source.list or malformed file )"

Oops, that's a bug in our debian archive!  I just attempted to fix it,
but i don't have an armhf machine handy.  Can you try updating your
apt source to the one I said above, then run 'apt-get update' and let
me kow if it works?


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Sebastian Kuzminsky

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[Emc-users] adding linuxcnc repos to rpi

[TJoseph Powderly]

how to add linuxcnc repos to my raspian jessie rpi3B+ ?

i installed raspbian jessie from 
http://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/2017-07-05-raspbian-jessie.zip
then built rt kernel from https://github.com/raspberrypi/linux -b 
rpi-4.14.y-rt


I rebooted and checked that I was running rt-preempt
pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.14.59-rt37-v7+ #1 SMP PREEMPT RT Mon Aug 20 12:47:16 
+07 2018 armv7l GNU/Linux


then found linuxcnc deb at 
http://linuxcnc.org/jessie/2.7uspace/binary-armhf/linuxcnc-uspace_2.1.14_armhf.deb

thats a real easter egg!

I was worried about the deps needed by the install, so
in synaptic, i added repo    deb http://linuxcnc.org/  jessie base
then exited synaptic
then ran sudo apt-get update and got

"Failed to fetch htt://linuxcnc.org/dists/jessie/Release
unable to find expected 'base/binary-armhf/Packages'
in Release file ( wrong source.list or malformed file )"

I was lucky that gdebi could install the deps
sudo gdebi linuxcnc-uspace_2.1.14_armhf.deb worked a treat

but how do i use synaptic in the future?
the apt-get update error has me worried.

thx tomp

btw: 83.4uS max latency-histogram --nobase 1mS thread  4 glx gears  
isolcpus=2,3   3693secs  ssh'd in over eth0


will let it cook overnight but looks pretty good

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