Issues getting started from default CD install

I need a little help getting started with LinuxCNC user interface development. I have ran it from the CD and installed it to an SSD from the downloadable image twice. I'm getting the same errors each time. I've tried to search for these errors and need to ask for some help.

#1 I can run LinuxCNC using axis without issue. I can change the ini display = touchy and run without issue.
#2 I can select GladeVCP from the configuration picker and it runs fine.

#3 Something that should be very simple to do according to the well written tutorial written by John Thornton (gnipsel.com/glade/glade01b.html). I have created the two files and even downloaded them to my desktop and get the same result as below.
$ cd Desktop
~/Desktop$ python gui1.py
RTAPI: ERROR: could not open shared memory (errno=2)
Segmentation fault

Tried again with sudo and get
RTAPI: ERROR: could not open shared memory (errno=2)
RTAPI: Locked memory limit is 64KiB, recommended at least 20480KiB.
This can cause the error 'could not open shared memory'.
For more information, see
wiki.linuxcnc.org/cgi-bin/emcinfo.pl?LockedMemory
Segmentation fault

So I check the /etc/security/limits.conf file per the informational link and it has the correct setting. So I'm stuck for this one.

#4 So I move to this tutorial (gnipsel.com/linuxcnc/gui/gui03b.html). When I try to run it after a few seconds I get this error.

Debug file information:
Can not find -sec MOT -var MOT -num 1
Can not find -sec IO -var IO -num 1
Can not find -sec LINUXCNC -var NML_FILE -num 1
Can not find -sec EMC -var NML_FILE -num 1
from: can't read /var/mail/gladevcp.gladebuilder
/usr/bin/gui3: line 11: syntax error near unexpected token `('
/usr/bin/gui3: line 11: `BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))'
3651
PID TTY STAT TIME COMMAND
3724
PID TTY STAT TIME COMMAND
Stopping realtime threads
Unloading hal components

/var/mail folder is empty. So I'm stuck on this one as well.

Any assistance you can provide to get me going would be appreciated. If you could use more information let me know.

have you installed the glade packages additional to the standard cd install ?

sudo apt-get install glade

Yes I believe that I have. I installed glade "GTK+ 2 User Interface Builder" from the software center. When I run the apt-get it returns that I already have the newest version.

To try and rule out hardware form being the issue I just completed the same tasks on a different machine running from the CD. It returned the same error, errno=2. Excepts this time it popped up that python 2.6 closed unexpectedly.

Can someone help me with this?

Edit: <
It's easy to duplicate my issue, I have done so now with three computers.
1. Download and burn the CD from here .
2. Boot up to the CD, install "GTK+ 2 User Interface Builder" from the software center.
3. Run a python/glade file such at files from here and here here ..
4. You get error RTAPI: ERROR: could not open shared memory (errno=2)

Moderator: if this post is in the wrong section please move it to get some attention as I'm stuck here. Thanks so much!
> Edit End

Hi

I was hoping JT would chime in, he is obviously busy at present.

I don't use python or glade, but your error messages suggest you have packages missing

Make sure you have all these by trying to install them again

wiki.linuxcnc.org/cgi-bin/wiki.pl?Instal...ackages_for_gladevcp

The other thing that completely screws up python, is if you have windoze ^M charactors in the file because you used a windows editor or pasted from a windows browser at some point.

Open the file in gedit, do File > Save As and save it as the same name, but make sure the drop down menu at the bottom shows Unix / Linux and not windows

good luck

Thank you for your reply.
The result of running the install script:
Opened and re-saved the files. Still no change:
Files as downloaded and being used.

I figured this out. It was a newbie error....
The step that I was missing was to launch LinuxCnc prior to running my python file in the terminal window. Which would make sense to have the shared memory error as they are connected. I guess that the error could have said "Can't run this without LinuxCnc running" or something like that. But anyway, moving on.

Glad you got it sorted

It was there but not necessarily obvious, as an earlier example did not require a running linuxcnc instance

11. Run the config again to see our custom screen now instead of Axis.

linuxcnc /home/john/linuxcnc/configs/gui3/axis.ini

regards