# Problem running GNU Radio 3.6.5 under Centos on X2Go Client **URL:** \ **Category:** GNU Radio\ **Created:** [January 14, 2014, 10:56pm UTC](https://www.ruby-forum.com/t/problem-running-gnu-radio-3-6-5-under-centos-on-x2go-client/238504 "2014-01-14T22:56:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [January 14, 2014, 10:56pm UTC](https://www.ruby-forum.com/t/problem-running-gnu-radio-3-6-5-under-centos-on-x2go-client/238504/1 "2014-01-14T22:56:01Z")
Hello GR, Lately I have installed GNU radio on my local session running on a remote Server. Actually I proceeded as mentioned in the gnu radio git installation guide The environment variables are set respectively to $PATH:… /users/nae/gnuradio\_3.6.5/bin/ $PYTHONPATH: /users/nae/gnuradio\_3.6.5/lib64/python2.6/site-packages/ (stored into the ~/.bashrc file) However I am not sure what to set next re LD\_LIBRARY\_PATH and make using CPPFLAGS as in the guide I am using a limited access session on the server and don’t know how to set the variables nor how to proceed the following make command of make … $ export LD\_LIBRARY\_PATH=$LD\_LIBRARY\_PATH:$HOME/local/lib $ make CPPFLAGS=“-I$HOME/local/include” 1/ When I type gnuradio-companion from the terminal it give the error: Traceback (most recent call last): File “/users/nae/gnuradio\_3.6.5/bin/gnuradio-companion”, line 24, in import gtk File “/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/ **init**.py”, line 64, in \_init() File “/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/ **init**.py”, line 52, in \_init \_gtk.init\_check() RuntimeError: could not open display 2/ When I run gnuradio-companion graphically from its icon in /home/gnuradio\_3.6.5/bin it gives the error: Cannot import gnuradio. Is the python path environment variable set correctly? All OS: PYTHONPATH Is the library path environment variable set correctly? Linux: LD\_LIBRARY\_PATH Windows: PATH MacOSX: DYLD\_LIBRARY\_PATH Any help is appreciated. Regards, – View this message in context: [http://gnuradio.4.n7.nabble.com/Problem-running-GNU-Radio-3-6-5-under-Centos-on-X2Go-Client-tp45727.html](http://gnuradio.4.n7.nabble.com/Problem-running-GNU-Radio-3-6-5-under-Centos-on-X2Go-Client-tp45727.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [January 14, 2014, 11:00pm UTC](https://www.ruby-forum.com/t/problem-running-gnu-radio-3-6-5-under-centos-on-x2go-client/238504/2 "2014-01-14T23:00:12Z")
On Tue, Jan 14, 2014 at 04:52:35PM +0100, Marcus M. wrote: > Hope that was kind of insightful, Also, this might help: [http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#Experts-only-How-can-I-deliberately-install-GNU-Radio-multiple-times-different-versions](http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#Experts-only-How-can-I-deliberately-install-GNU-Radio-multiple-times-different-versions) MB ---
**Author:** ![naeo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/57b2e6/32.png) [@naeo](https://www.ruby-forum.com/u/naeo)\ **Post date:** [January 14, 2014, 10:56pm UTC](https://www.ruby-forum.com/t/problem-running-gnu-radio-3-6-5-under-centos-on-x2go-client/238504/3 "2014-01-14T22:56:05Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Naceur, the display error looks like the result of the X Window display environment variable not being set. Assuming that you run your gnuradio-companion command from a terminal started from within your X Session, this is strange.If echo $DISPLAY does not give something like :0, try export DISPLAY=:0 gnuradio-companion Of course, if you try to run a graphical program such as gnuradio-companion on a terminal-only session (eg. ssh connection to a server), you won’t have any success. What you can do is set up a trusted X tunnel, by running ssh with -X -Y flags. Note, however, that there is little sense in running the companion on a server. What you’d usually do is run gnuradio-companion on your local workstation, build non-graphical flowgraphs, and run these on the server. Hope that was kind of insightful, Marcus On 14.01.2014 16:40, Naceur wrote: > (stored into the ~/.bashrc file) > > display > LD\_LIBRARY\_PATH Windows: PATH MacOSX: DYLD\_LIBRARY\_PATH Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Discuss-gnuradio > mailing list [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - [http://www.enigmail.net/](http://www.enigmail.net/) iQEcBAEBAgAGBQJS1V1DAAoJEAFxB7BbsDrLnqAIAKVZ+EgO5CKLYnWNz2VyZNMp D4K4/X9l4rVNzGTk6DmPkXedqh8zw9KCWubXxlVx9Qe2pJZtNwYyiWqcUjN/qQpi 5twE409eyp01uw2XoRnRINZSqH/VkHnufADyMo7yHxWgb+EIG8Ay0paAybbS5hCN L7TU7qVFytKlCM7iLZb2qbtRqgPtilGBK6/+pVr2qVz/BIyJQyiayQSZsy80tsN2 dJqI2Fw0TDHy0bDrJbc9jbDO1EkcqrNB7ig5ElvJax7ayl1F87oFl0ePJfsXQKwf vHTpAozzs63JcN2pqv4GSmOCPyWNaM5VajB9wU5ob/m+9NYpa+iOqTF6VFgDVnw= =MYmT -----END PGP SIGNATURE-----