save_map - how do I do it?

[kelvinkefren]

Hi, I am using the singularity and cloned the octomap_planning_planning.
run the simulation example in tmux, every thing os working finel.

What I am trying to figure it out is how to save the map and use the octovis. I tried to use a service (rosservice call uav1/octomap_server/save_map example), but it shows the msg: "map saving failed".

Can you help me with this?