Raspberry Pi 4 Tutorial - fatal error

It might be worth trying:
unofficialpi.org/Distros/RealtimePi/nightly/

As mentioned gscreen and some of gladevcp is broken after the install due to libraries that have been dropped by Debian 10 and Raspbian 10.

If you find a solution let me know...

JT

Find older packages and use them. There are no older packages for RPi 4, but the packages for RPI 3 work. Get those for raspbian 9 and it should all work again.

I'm back on a decent computer and could look for it. Here is how I solved the python-rsvg missing package
forum.linuxcnc.org/18-computer/36879-ras...pi-4?start=50#140800

I assume that other old packages can be found at the same place.

I gave it a whirl and one thing that got me a little off-track was that I had gotten used to cutting and pasting the commands and it was late evening and when I got to this one "sudo apt install openbox, lxterminal and lightdm" it failed because I should have entered:

sudo apt install openbox
sudo apt install lxterminal
sudo apt install lightdm

I also lost my network connection (my fault) while debuild -uc -us was running and had to start it again.

Now, how do I start Linuxcnc from the command line? It is not on the Caja menus and I tried "linuxcnc" and I get "command not found". At this point I was just going to check latency as I don't have 7i76E yet.

JohnnyCNC wrote: I should have entered:

sudo apt install openbox
sudo apt install lxterminal
sudo apt install lightdm

This works too:

Now, how do I start Linuxcnc from the command line? It is not on the Caja menus and I tried "linuxcnc" and I get "command not found". At this point I was just going to check latency as I don't have 7i76E yet.

If it is a built-from-source run-in-place version then before you can enter any linuxcnc commands you need And that really is dot space dot slash.