<site>/etc/thruk/thruk_local.d/lmd.cfgwith this content:
use_lmd_core=1 lmd_core_bin=~/bin/lmd lmd_core_config=~/etc/thruk/lmd.ini
(Since omd 2.40 this file already exists, just skip this step)
Restart Thruk via
omd restart apache
ps if there is a lmd process running (You may have to open Thruk in your browser first).
You don't have to configure the backends twice, Thruk will automatically create and launch it with a minimal configuration from ~/tmp/thruk/lmd/lmd.ini.