When the attached spacenavd script is installed under /etc/init.d/spacenavd then the appropriate links in the etc/rc[0-9].d are (under ubuntu/debian) installed best as follows:
# /usr/sbin/update-rc.d -n spacenavd defaults
This could (and probably should) be used in the upstream source package's setup_init script.
When the attached spacenavd script is installed under /etc/init. d/spacenavd then the appropriate links in the etc/rc[0-9].d are (under ubuntu/debian) installed best as follows:
# /usr/sbin/ update- rc.d -n spacenavd defaults
This could (and probably should) be used in the upstream source package's setup_init script.