The minetest customizations in ubuntu are installed in share/games
The installed mods maintained by the Ubuntu Developers (saved in /usr/share/games/minetest) are not compatible with the minetest of the Minetest Development Team (saved in /usr/share/minetest).
Ubuntu chose to use a different share path for their builds, if you want to have compatibility use the build provided by Ubuntu.
How can we adjust the minetest installation in ubuntu?
Users can not install the minetest mods available in Ubuntu Software Center.
Alternatively, is there any mods repository for ubuntu that works with the minetest of Minetest Developer Team ppa?
So let's live with this problem?
Simply because ubuntu has decided to organize itself in a slightly different dir?
We should trust in the return of mmdb.
:(