~/Development/netxms/netxms (develop↑1|…)% nxdbmgr init /opt/netxms/share/netxms/sql/dbinit_sqlite.sql
NetXMS Database Manager Version 2.0.2 Build 8060 (2.0.2-RELEASE-16-gf466c8f) (UNICODE)

Initializing database...
Database initialized successfully
~/Development/netxms/netxms (develop↑1|…)% nxdbmgr check
NetXMS Database Manager Version 2.0.2 Build 8060 (2.0.2-RELEASE-16-gf466c8f) (UNICODE)

Checking database (excluding collected data):
* Checking zone objects...                                            [PASSED]
* Checking node objects...                                            [PASSED]
* Checking interface objects...                                       [PASSED]
* Checking network service objects...                                 [PASSED]
* Checking cluster objects...                                         [PASSED]
* Checking template to node mapping...                                [PASSED]
* Checking object properties...                                       [PASSED]
* Checking event processing policy...                                 [PASSED]
* Checking network map links...                                       [PASSED]
* Checking data tables...                                             [PASSED]
Database doesn't contain any errors
Database check completed
~/Development/netxms/netxms (develop↑1|…)% cat /opt/netxms/etc/netxmsd.conf
LogFile=/tmp/netxmsd.log
DBDriver=sqlite.ddr
DBName=/tmp/netxmsd.db

However I highly recommend to use PostgreSQL or any other decent database engine instead of SQLite.