[yz@test ~]$ export LD_LIBRARY_PATH=/opt/openGauss/openGauss-server/mppdb_temp_install/lib/:$LD_LIBRARY_PATH
[yz@test ~]$ cd /opt/openGauss/openGauss-server/mppdb_temp_install/bin
[yz@test bin]$ ./gs_initdb -D /opt/openGauss/gauss_data/ --nodename=gauss
……
Success. You can now start the database server of single node using:

    ./gaussdb -D /opt/openGauss/gauss_data
or
    ./gs_ctl start -D /opt/openGauss/gauss_data -l logfile