Tagarchief: debian jessie

LinuxCNC 2.7 on Jessie

Running LinuxCNC on fresh Debian Jessie (8) install using custom compiled longterm kernel 4.1.15.

Start with a fresh install of Debian.

Most of the step can be done as a normal user. For apt-get and dpkg commands log in as root or use sudo.

Compile Kernel 4.1.15 with RT patch

With some help from https://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO and http://www.cyberciti.biz/faq/debian-ubuntu-building-installing-a-custom-linux-kernel/ .

Install required tools

# apt-get install build-essential ncurses-dev fakeroot kernel-package

Extract kernel and patch

# mkdir /opt/kernel
# cd /opt/kernel
# wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.1.15.tar.xz
# wget https://www.kernel.org/pub/linux/kernel/projects/rt/4.1/patch-4.1.15-rt17.patch.gz
# tar xvf linux-4.1.15.tar.xz
# gzip --decompress patch-4.1.15-rt17.patch
# cd linux-4.1.15
# cat ../patch-4.1.15-rt17.patch | patch -p1

Copy current kernel config into this build

# cp /boot/config-$(uname -r) .config

Configure kernel

# make menuconfig
-> Processor type and features
-> -> Preemption Model (Fully Preemptible Kernel (RT))
-> -> Timer frequency (1000 HZ)
<Save>

menuconfig

Compile kernel

# make-kpkg clean
# fakeroot make-kpkg -j4 --initrd kernel_image kernel_headers

Where -j specifies number of cpu cores.
This might take a while and raise room temperature. 🙂

Installing kernel

Execute de following commands as root or use sudo.

# cd ..
# dpkg -i linux-headers-4.1.15-rt17-10.00.Custom_amd64.deb
# dpkg -i linux-image-4.1.15-rt17-10.00.Custom_amd64.deb
# shutdown -r now

Adding LinuxCNC repository to APT

I do not compile my own LinuxCNC, maybe later, for now i am using LinuxCNC APT archive.

Follow http://linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html#_installing_on_debian_wheezy_with_preempt_rt_kernel

Run the following commands as user root or use sudo.

Add the LinuxCNC Archive Signing Key to your apt keyring:

# apt-key adv --keyserver hkp://keys.gnupg.net --recv-key 3cb9fd148f374fef

Now edit /etc/apt/sources.list and add the following line:

deb http://linuxcnc.org/ jessie base 2.7-uspace

and update aptitude.

# apt-get update

Now you can install LinuxCNC by using this line:

# apt-get install linuxcnc-uspace

Please let me know if i wrote something wrong.

ELO Intellitouch 2700 on Debian Jessie

Calibrating ELO IntelliTouch 2700 USB.

Not to hard to do, after finding the right solution 🙂

Get ‘xinput-calibrator’ from Debian repositories and follow its instructions.

# apt-get install xinput-calibrator

Selection_089_kleinIn your desktop envorinment there will be an menu item ‘Calibrate touchscreen’. Click it!

Your screen will turn white and asks to tap on the screen at pointed locations.

After some samples a terminal will show up with a xorg.conf sample config.

Open a new terminal.

# sudo mkdir /etc/X11/xorg.conf.d
# sudo vi /etc/X11/xorg.conf.d/99-calibration.conf
or
# sudo nano /etc/X11/xorg.conf.d/99-calibration.conf

Paste the sample config, save and reboot.