You should get geodata files 1st from Internet. Google it, leater I prefer a good one.
Make a folder in your disk called "server" also put three folders here:
GeoRoot
l2emuproject-gameserver
l2emuproject-loginserver
Take two folder into GeoRoot folder:
geodata - It's should contains your geodata files with geo_index.txt
pathnode - It's should contains your pathnode files with pn_index.txt
Go to server/l2emuproject-gameserver/config/main/geodata.properties
Change this...
# GeoData root...
# Example: ./../GeoData
GeoDataRoot = ./../GeoData
To:
# GeoData root...
# Example: ./../GeoData
GeoDataRoot = ./../GeoRoot
Save and exit.
Congratulation, you configured georoot config.