Linuxcnc 2.9 on Arch Linux

16 Oct 2021 08:02 - 31 Oct 2021 03:44 #223284 by Joco
For a little bit of variety and after being pulled down the rabbit hole by Turboss I documented installing linuxcnc under Arch Linux on my HP T610.  It has been useful as I seem to have reduced latency by 8-10us down to around 25us.  But be warned this is Arch Linux, so like Gentoo is wants to have plenty of disk space to play in as it pulls down a mix of binaries and source and builds packages on the fly.

Anyway, I thought I would share in case anyone else got enthused.  :-)

Arch Linux linuxcnc deps list

Guided install of Arch Linux.  Key choics are to select desktop and xfce. This while in the Arch Linux boot strap terminal.
pacman -Sy python-archinstall
python -m archinstall --script guided

- you have now rebooted into you new and very basic Arch Linux install
- have installed yay (
- you take the latest version packages to install (i.e. typically from extra or community)
- Disable sudo password timeout per tips and tricks at:
- have used yay to install linux-rt
- have left all build dependencies in place after each build
- you use the follwoing extra switches on ./configure
    --disable-gtk2  This means no classic ladder
    --enable-non-distributable=yes    this allows arch gpl3 vertsion of readline
- you have added .local/bin to your path

Using yay:
yay -Sy python-pip libmodbus-dev libtirpc intltool boost-libs boost tcl tclx tk tkimg bwidget glu python-opengl python-cairo python-pyqt5 python-xlib python-qscintilla-qt5 qt5-svg python-pyqt5-webengine python-numpy python-opencv dbus-python qt5-multimedia python-wheel python-setuptools python-devtools qt5-declarative gst-plugins-bad qt5-tools lsb-release qt5-quickcontrols python-espeak man-db

Install using python:
python3 -m pip install yapps2

After the above perform a noraml RIP based build of source code. i.e. no debian package builds.  e.g.:
> git clone git:// linuxcnc-dev
> cd linuxcnc-dev/src
> ./
> ./configure --with-realtime=uspace --disable-gtk2 --enable-non-distributable=yes
> make -j3
Last edit: 31 Oct 2021 03:44 by Joco. Reason: added optional man-db
The following user(s) said Thank You: TurBoss, tommylight, my1987toyota, MoshKopp

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16 Oct 2021 08:47 #223287 by MoshKopp
Replied by MoshKopp on topic Linuxcnc 2.9 on Arch Linux
Nice, will give it try. Thank you for sharing your experience

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