Raspberry Pi 4 image does not auto-update

Hi,

I downloaded the official RPi4 image from linuxcnc.org .
Documentation says it should auto-update to LinuxCNC 2.8.2, but it throws error.

Are there any stable images for LinuxCNC 2.8.2?

Thank you
George

You can try the one you find here:

buildbot.linuxcnc.org/

buildbot.linuxcnc.org/dists/buster/2.8-rtpreempt/binary-armhf/

Thank you,

and how do I get the RPi4 image with realtime kernel?

-Open a terminal and type:
sudo apt update
sudo apt install linuxcnc-uspace linuxcnc-uspace-dev mesaflash
-reboot

or follow the instructions here

github.com/kdoren/linux/releases

I have problems updating the buster image overall.

Is there any RPi image with LinuxCNC with bullseye?

As far as i know, LinuxCNC version 2.8.2 is not compatible with Bullseye.

If you want to try a image with 64-bit version 2.9.0pre, you can see at this link:

forum.linuxcnc.org/9-installing-linuxcnc...cnc?start=130#238020

Its been a while since I tried but installing Debian Bullseye for the Pi from debian.org is pretty easy.
To add a GUI, you need to run tasksel (which may need to be installed with apt first)
Preempt_RT would not install from the repos so I had to use this method mentioned earlier
github.com/kdoren/linux/releases

QTPYVCP and PYVCP is a problem because they need VTK which is not available from the pi repos. It is possible to build it but its an overnight job.
ftree built a image which is discussed somewhere on this forum but his code is here and includes a VTK whl:
github.com/kdoren/linux/releases
Note this is crosscompiled on a AMD64 linux box. I did it on a virtual instance on Windows.
I did finally get QT running!