Raspberry Pi 4 Tutorial - fatal error

Hey guys, I have downloaded the 4.19.71-rt24-v7l+.tar.bz2, linuxcnc-doc-en_2.9.0_pre0_all.deb and the linuxcnc-uspace_2.9.0_pre0_armhf.deb from Gene's linux box on to a USB stick. How do I install this on the Pi from the stick? I noticed that John T's instruction guide has you go online and download the files from github, but I already have them. Can someone point me in the direction of installing them from the USB drive? Thank you in advance

You can install debs with apt. But you need to give a path or apt doesn't know where to look.

so something like:

sudo apt install ./linuxcnc-uspace_2.9.0_pre0_armhf.deb

Has anyone been using their rpi4 to actually run a machine for a while now? Is it reliable? I would really like to use it to run plasmaC but I also don't want to waste too much time on it if it's too "experimental".

andypugh wrote: You can install debs with apt. But you need to give a path or apt doesn't know where to look.

so something like:

sudo apt install ./linuxcnc-uspace_2.9.0_pre0_armhf.deb

Got it. Thank you!

I've got some additional instruction you could add to your tutorial.

On the Preempt RT Kernel, after burning the image to the SD card, and before booting into it on the pi, add a file in the ?:\Boot partition simply called wpa_supplicant.conf and another called ssh.txt. Add the following to wpa_supplicant.conf:
You can leave the ssh.txt file empty, simply having it there will cause the pi to enable ssh at boot.

I needed to do this because I've discovered I don't have the correct HDMI adapter and so can't put a monitor on my rpi yet. Obviously
you'll need a monitor to run linuxcnc anyway but at least now I can get a head start with the kernel and other setup.

howchoo.com/g/ndy1zte2yjn/how-to-set-up-...-pi-without-ethernet

{EDIT}

It might be a good idea to clarify to the audience that the following line is kernel7"L" and not kernel7"one". Took me a few minutes to figure out where I messed that up. The fix is simply to rename the file correctly in the /boot dir.

I install very successful
xrdp
With any rdp you can use your pi without screen. I prefer this advers the vnc. My feeling is that performance is better, also starting from pi2.
Mike