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Usually you would keep the system folder for ROS there and add another folder to your $ROS_PACKAGE_PATH environment variable. I usually like to use ~/ros for my packages or packages I downloaded from other people's repositories.
Generally, I think it's a pretty bad idea to move ros packages that were installed by debian packages (everything in /opt/ros/). Setting ROS_PACKAGE_PATH will not be enough because the binaries and libraries in ros packages contain RPATH information to not require LD_LIRBARY_PATH set. When you move the packages, the rpaths will become incorrect and you won't be able to run any nodes anymore. A second problem is that every update will re-install ros packages at the old location.
The only thing you can do is creating a symbolic link. You can move /opt/ros and then create the link with:
ln -s /opt/ros <new location of ros>
Asked: 2012-11-13 11:36:48 -0500
Seen: 360 times
Last updated: Nov 14 '12
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Why would you like it to be placed on your desktop?