RPI4 Raspbian 64 bit & LinuxCNC

#!/bin/bash

run_function1 (){
  echo "run_function 1 completed"
}


run_function2 (){

apt install -y xfce4 xfce4-terminal xfce4-power-manager
apt install -y geany firefox-esr konsole
apt install -y dh-python libudev-dev docbook-xsl asciidoc ghostscript imagemagick asciidoc-dblatex bwidget intltool libboost-python-dev libepoxy-dev libgl1-mesa-dev libglu1-mesa-dev libgtk-3-dev libmodbus-dev libgpiod-dev libeditreadline-dev libusb-1.0-0-dev libxmu-dev netcat-traditional  netcat-openbsd po4a python3-dev python3-tk python3-xlib tcl8.6-dev tclx tk8.6-dev yapps2 libgtk2.0-dev
#Linuxcnc Docs
#apt install -y dvipng fonts-dejavu graphviz groff inkscape python3-lxml source-highlight texlive-font-utils texlive-lang-cyrillic texlive-lang-european texlive-lang-french texlive-lang-german texlive-lang-polish texlive-lang-spanish w3c-linkchecker
mkdir -p /tmp/devel/
cd /tmp/devel/
git clone https://github.com/LinuxCNC/linuxcnc.git linuxcnc-dev
cd linuxcnc-dev/src
git checkout 2.9
cd ../debian
./configure no-docs
cd ..
dpkg-buildpackage -b -uc
cd ..
apt install -y ./linuxcnc-uspace_2.9.0~pre1_arm64.deb
apt install -y ./linuxcnc-uspace-dev_2.9.0~pre1_arm64.deb
cd ..
#rm -r devel
echo "All done installing linuxcnc!"
}

# make a development folder to keep the home folder tidy
cd ~
mkdir devel
cd devel
https://github.com/rodw-au/rpi-img-builder-lcnc
cd rpi-img-builder-lcnc
git checkout linuxcnc
#set up the environment - First run only
./install.sh
make ccompile

# Download the kernel fromn Raspberry but we want to go back to the matching commit
# for the latest preempt_rt patch  which is Linux version 6.1.46
# The Raspberry Pi kernel is advancing regularly merging with the kernel.org source

make commit board=bcm2711
Enter: 9ed4f05ba2e2bcd9065831674e97b2b1283e866d
make rootfs board=bcm2711
make image board=bcm2711

# Before rebuild
make purge

#User name and password
User: cnc
Password: cnc