银河麒麟的前置事项

yum -y install libaio-devel flex bison ncurses-devel glibc-devel patch  readline-devel openssl-devel sqlite-devel libnsl bzip2 net-tools

sysctl -w kernel.sem="250 85000 250 330" 

创建用户信息:
groupadd dbgroup
useradd -g dbgroup omm
passwd omm

mkdir -p usr/openGauss

cat >/etc/profile.d/opengauss.sh << EOF
export GAUSSHOME=/usr/openGauss/bin
export LD_LIBRARY_PATH=\$GAUSSHOME/lib::\$LD_LIBRARY_PATH
export PATH=\$GAUSSHOME/bin:$PATH
export GAUSSLOG=\$GAUSSHOME/bin/log
EOF
source  etc/profile.d/opengauss.sh

sed -i '/omm/d' etc/sudoers 
echo "omm   ALL=(ALL)       NOPASSWD: ALL" >> etc/sudoers

下载并且解压缩

https://opengauss.obs.cn-south-1.myhuaweicloud.com/3.0.5/x86/openGauss-3.0.5-CentOS-64bit.tar.bz2

tar -jxvf openGauss-3.0.5-openEuler-64bit.tar.bz2  -C usr/openGauss/
chown -R omm:dbgroup usr/openGauss

初始化

su - omm
cd usr/openGauss/simpleInstall
sh install.sh  -w "Testxxxxxxxx"

启动数据库:
gs_ctl restart -D $GAUSSHOME/data/single_node -Z single_node

修改配置:
vim usr/openGauss/data/single_node/pg_hba.conf
增加:
host    all             all             0.0.0.0/0            md5
vim usr/openGauss/data/single_node/postgresql.conf

listen_addresses = '*'
local_bind_address = '0.0.0.0'
port = 5432
max_connections = 1000
ssl = off
password_encryption_type = 0

重启数据库
gs_ctl restart -D $GAUSSHOME/data/single_node -Z single_node

创建用户

gsql -d postgres

CREATE USER root PASSWORD 'Testxxxxxxxx'; 
GRANT ALL PRIVILEGES TO  root;
alter role root sysadmin;
\q

navicat连接

db postgres
user root
password 

登录连接即可. 
需要注意如果 创建密码的时候 如果没有设置密码 md5 后者是 sha1 需要重新修改密码
alter user root identified by 'Testxxxxxxxx';
注意这个地方是有一些差异的. 密码不允许重复, 安全级别比较高一些.