Yes I wrote the same problem on 16.04. I run sage -n=ipython and then I opened firefox. I noticed for me it's even better I just created an icon with sage -n=ipython (as application) so I don't see any terminal running and I run firefox. I noticed that file can be relocated in any dir, which is a good improvment.

Le 18/12/2015 11:10, Eric Gourgoulhon a écrit :
Hi,

I've tested sage-6.10.rc2-Ubuntu_15.10-x86_64.tar on a Ubuntu 15.10 computer and got the following issue:
./sage -n jupyter
results in the error message:
Please wait while the Sage Notebook server starts...
[I 11:01:15.391 NotebookApp] Using MathJax: nbextensions/mathjax/MathJax.js [W 11:01:15.420 NotebookApp] Terminals not available (error was No module named terminado) [I 11:01:15.421 NotebookApp] Serving notebooks from local directory: /home/eric/sage/sage-bin/SageMath
[I 11:01:15.421 NotebookApp] 0 active kernels
[I 11:01:15.421 NotebookApp] The IPython Notebook is running at: http://localhost:8888/ [I 11:01:15.421 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). /home/eric/sage/sage-bin/SageMath/local/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /usr/lib/x86_64-linux-gnu/libproxy.so.1) Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so /usr/lib/firefox/firefox: /home/eric/sage/sage-bin/SageMath/local/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /usr/lib/firefox/firefox)

As a consequence, the notebook is not automatically opened in Firefox.
However, if I manually open http://localhost:8888/ everything is fine: Jupyter notebook works (including MathJax display and 3D graphics).

For sage notebook, there is no problem: ./sage -n triggers the opening of a new Firefox tab.

On the same computer, there is no such problem with a compiled version of sage 6.10.rc1: ./sage -n jupyter does open a new Firefox tab (and there is no message "version `GLIBCXX_3.4.21' not found").

Eric.
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