RPI4 - Debian / LinuxCNC / EtherCAT / XFCE

Hi!

Using a guide on here from rodw I've made a fork of rpi-image-builder to make an "RPI4 bookworm" bootable image file

Your HOST machine should be Debian Bullseye until further notice

22/05/2020 - bumped to new components

debian bookworm
kernel 5.15.40-rt43  ( processor.max_cstate=1 , isolcpus=2,3 )
lxqt 1.1.0
ethercat 1.5.2-32
linuxcnc-uspace linuxcnc-uspace-dev mesaflash
linuxcnc-ethercat

See github.com/djsftree/rpi-img-builder

Sucessfully builds on bullseye host.  See instructions at top of README.

Writing to a card now. 

Very cool.
Does this include the PREEMPT_RT kernel patch?
Do you build this on the PI or on AMD64 with a cross compiler?

Builds on AMD64 hosts with cross compiler.  The ./install grabs all cross dependencies.
github.com/djsftree/rpi-img-builder/blob/master/install
github.com/djsftree/rpi-img-builder/blob.../scripts/.ccompile64

Your repo script is here
github.com/djsftree/rpi-img-builder/blob...userscripts/uscripts

Includes PREEMPT_RT kernel patch - yes.  In the instructiions we pull the 5.15.36 merge from rasberrypi/linux
github.com/raspberrypi/linux/commit/ac27...47aeb491137bf3e9216a

rpi-img-builder patches 5.15.36 to 5.15.36-rt41with the files in
github.com/djsftree/rpi-img-builder/tree.../patches/userpatches

I'm using kdoren rt64 config for now but will update that soon
github.com/djsftree/rpi-img-builder/blob...onfig/rt64_defconfig

I think the stage here needs a little work

github.com/djsftree/rpi-img-builder/blob...scripts/uscripts#L44

We're not pickng up the key stored.

Should this be

deb [signed-by=/usr/share/keyrings/ethercat.gpg]  ... .... ?

Not sure.  Are there any questions to answer on the apt-get ethercat lines?

Ok I tried this on a Debian Bookworm PC with kernel = 5.17
It failed with message saying "The OS you are running is not supported"
edited the script and changed bullseye to bookworm in the script and I got past that but every other command failed.
So it seems this is for Bullseye. Maybe you should update the title of this thread..
I will try on another machine tomorrow.... I think I have a bullseye PC somewhere.

I am not really sure what is going on here with the scripts so its hard for me to comment on possible issues..

Thanks, updated title and ammended first post.

Still having issues setting up the correct key store for the etherlab repo.

The key appears to be for Release and not InRelease.

 

Until I can figure out how to import the right keys from EtherLab repo
github.com/djsftree/rpi-img-builder/comm...ed32642c661b2b26291b

5.15.36-rt41 now installs and rebuilds the ethercat modules.  Result!

 

Tested - boots to login ok!