RTAI kernel disconnects Internet

I can't see in either list that there is a Realtek ethernet driver loaded.
You'll have to do as Arceye suggested a few posts back.

FAst1,

You might try seeing if you can get internet working by simply loading Ubuntu 14.04 by itself using the generic kernel. If that works, then look up the topic TOPIC: ISO install of LinuxCNC on Debian 8 & Mint LMDE 2 and download the iso file that they are talking about which will load a rtai kernel into your Ubuntu 14.04 and then it loads Linuxcnc. They do not say their iso will work on Ubuntu 14.04 x64, but so far as I can tell, it is working on my machine. I can get Linuxcnc to open and it runs on the display. I still have to figure out if, if so, where the iso loaded all the setup type programs to define the machine constant for my cnc mill. I also want to figure out if it loaded the basic latency test program and I cane check that too. If all that works, then I will plug in my mill and see if the mill actually works. I have a small Sherline 4 axis mill that I will test it out on first before I hook it up to my full size mill.

JWSingler:

Thank you very much.
I will give your suggestion a try. I have been using Linux only for about a week now
so I still am pretty slow. If I can get the Linuxcnc to run the latency is not so important
to my application. I developed my own little servo controller board that communicates
usb. I want to get into the Linuxcnc source and output way point and velocity data. This
will give me lots of flexibility. I have lots of old mills and lathes I need to retrofit for my shop.
One of the interesting thing about this board is that it as interferometry interface that will allow
me to calibrate the primary process I want to achieve.
I think your suggestion is a very practical way to proceed. I am very interested in giving it
a try and will let you know how I do.

Thank you again,

Fayette

geoffs:

Thank you so much,

I think I am going to try Mr Singlers method and if I can't do that will come back to this.
I would like to have a later Ubuntu installed. I have been unable to load some of the packages
I need into the 12.04 and think maybe the newer version would fix some of those problems as
well as the network module.
I genuinely appreciate your help. Will let you know how this comes out.

Thank you,

Fayette

Well my system kind of works.
I started by installing Ubuntu 14.04 x64 and verified that I had all my devices working (internet, display, touchscreen). After some false starts, I went with the iso install listed in TOPIC: ISO install of LinuxCNC on Debian 8 & Mint LMDE 2 . All you need to do is copy the iso file onto your Ubuntu machine in the specified folder and then open up terminal (cntl-alt-T), set terminal to root mode, ("sudo -s") and then type in each of the instructions listed in the post to run the iso. This approach loads 3.18.13 rt10mah realtime kernel into Ubuntu 14.04 and then installs linuxcnc 2.7.4.25.

I got linuxcnc to open and I even selected the default setup for my 4 axis Sherline mill and the mill runs the default routine to mill the word "linuxcnc". The down side is that I am getting occasional messages that Ubuntu has encounter a system error. Unfortunately while I can display the error details on my screen, I can not cut and paste them here for others to review. I cleared the errors and restart linuxcnc and so far I have not gotten a second error message. It is going to take more testing to identify these errors and figure out how to fix them. Of course I am running Ubuntu 14.04 64 bit and that may be some of the problem (the 64 bit thing). I will be out of the shop for a week. I am going to study up on Ubuntu 14.04 while away so I can at least understand that side of working with linux and I will occasionally be check back in online.

Good Luck. John

I installed it on Mint LMDE 2 and everything
seems to work wonderfully. At least I have the network and Linuxcnc seems to
work.

Thanks again,

Fayette