On 9/14/22 14:57, Sebastian Kuzminsky wrote:
Hi folks, with all the attention that newer distros have been getting
lately, I'm looking in to running LinuxCNC On the Bullseye version of
Raspberry Pi OS (aka Raspbian) on a Raspberry Pi 4B.
It looks super straight-forward, except for the realtime kernel (as
usual). I don't see a modern kernel built with Preempt-RT enabled in
the raspbian bullseye package archive...
It is not recognized by the foundations church and I am black holed on
their forum
for asking about it.
Does anyone know if there's a well-liked pre-built official or
community-supported Rpi4 realtime kernel somewhere?
Or do I have to reconfigure & rebuild the "official" kernel?
bullseye won't work, python 10-4 is too new.
buster works fine. As for kernel, my 4.19-whatever is doing ok and you
can get an
installable tarball from my web page in the sig. Dave Envall is building
a pi controlled mazak with it too.
Install buster and get it running. Then pull the card and put it in a
reader, mount it so you can see the /boot and /lib directories. Use mc
to unpack the 28 meg tarball, you'll see a /boot tree and a lib tree.
Copy both
to the sd card at those locations. Put the card back in the pi and boot
it up and a 'uname -a' should show
this: but with your fqdn instead of mine..
Linux rpi4.coyote.den 4.19.71-rt24-v7l+ #1 SMP PREEMPT RT Thu Feb 6
07:09:18 EST 2020 armv7l GNU/Linux
It also works fine to boot bullseye, but bullseyes python it too new. So
a git clone won't build, bailing out t the configure stage.
Easy peasy otherwise. I have the src tarball too but not where you can
get it. It and at least 1 patch file
should get you something that will build. Let me know and I'll see if I
can round up all the pieces & make
them visible.
Take care Seb.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
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