If you want this to work better, I recommend trying the new packaging I’ve written.
I did a complete overhaul of all this.
- It is udev independent. It uses the group as primary but will change perms to rw with udev
- It won’t break an existing installation.
- It reports everything it finds during preinst phase.
- It tells you what it found and how it configured (it adapts to your site config)