Complete HOW-TO Linux Mint 18.1 32/64 RTAI or PREEMPT with RIP install or deb

Yes that's normal for building master. Looks for the ~4mb deb and install it.

Yes, when working with a development branch like Master. Until the current Master branch (2.8-pre) is released, that is how it will be numbered. Once it has matured and is released as a stable release, it will be called as 2.8.0, and a new Master branch will be started (likely called 2.9-pre).

Thanks to you cncnoob1979 and Todd. Unfortunately, the package doesn't install because of dependancies with python2.7-imaging-tk | python-imaging-tk (witch are not installed -> I got the message that 3.1.2.0ubuntu1.1 should be installed to do so). So linuxcnc can't be configured*.
* Those are my personal translations of the french messages..
Since I dowloaded the LiveCd from linuxcnc.org, I wonder if I won't give up with Mint and reinstall the whole system.

Mint is great.....I use it to test various ideas I have for my working machine. Keep with it. It's well worth it.....actually it's a great Desktop Distro.

Actually I now use Linux Mint as my sole OS (Laptop & Desktop, still use slackware for my "Everything" server) after reading and going through the instructions. I'd never used it before reading this thread....and now I'm hooked.

Hi Ozzyrob,
I'm sure you're right as friends of mine told me the same. But my goal with installing linux is only to work with linuxCNC (the PC on witch I install it is dedicated and has a parallel port). I'm just clever enough with Linux to follow a tutorial (and this one is really nice written and clear) but if I can't get rid of this issue with python-imaging and 3.1.2.0ubuntu1.1, I'll install linuxCNC liveCD. Thanks to everybody for your advices and info.

Have you tried installing python-imaging via synaptic (under package manager in the "start menu"). 3.1.2.0ubuntu1.1 is the version. I'm pretty sure that should have been installed via the Dependencies on page 1 of this thread.

Python-imaging is actually installed, the problem comes with python-imaging-tk (and python-imaging2.7-tk- that I can't install.
Typing sudo apt-get install python-imaging-tk returns
Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python-imaging-tk : Dépend: python-imaging (= 1.1.7-4) mais 3.1.2-0ubuntu1.1 devra être installé
E: Unable to correct the problem, you have held broken packages*.

* My linux is in french so I guess this is what to read for "des paquets défectueux sont en mode « garder en l'état »."

Synoptics doesn't show any broken packets..

Try

sudo apt-get install python-pil.imagetk

I think this is the package you are missing.....I just checked my machine

Successfully done.
Should try to install python-imaging-tk now ?

According to Ubuntu python-pil.imagetk provides python-imaging-tk, as per packages.ubuntu.com/xenial/python-imaging-tk so you should good to go