Can't run Nios2 Eclipse on Linux (Centos)

Hi.

Just installed 12.1 tools on Linux build machine.

Can't get eclipse to run with Nios available. I have the following elements of PATH set:

<install_path>/quartus/bin

<install_path>/quartus/sopc_builder/bin/

<install_path>/nios2eds/bin

<install_path>/nios2eds/bin/gnu/H-i686-pc-linux-gnu/bin

I ran

$eclipse-nios2

Eclipse comes up but with no mention of Nios anywhere...

What am I missing?

Thanks