sage server running on ubuntu and server_pool with mac machines

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Hello,

I have sage server running on ubuntu installed via ubuntu-ppa listed on your Binaries for linux page. But when I configured the server_pool to have mac machines, I get this /usr/lib/sagemath/sage not found since on the mac machines, sage is installed on /Applications/sage directory.

I tried setting the SAGE_ROOT environment variable to /Applications/sage and add that path to the PATH environment variable on the mac. I also changed the sshd to allow user environment variable but the server running on the ubuntu still complaining about /usr/lib/sagemath/sage is not found and not looking for sage in /Applications/sage directory.

any help is much appreciated.

thank you

-simon