opengauss单机部署

Opengauss单机部署的步骤如下：
1. 首先，执行下面命令准备安装环境：

   cd /opt/software/openGauss/script
   ./gs_preinstall -U omm -G dbgrp -X /opt/software/openGauss/cluster_config.xml

2. 接下来，修改主机名：

   echo "node1" > /etc/hostname
   echo "192.168.17.129 node1" >> /etc/hosts

3. 下载opengauss安装包及创建用户组和目录：

   groupadd dbgrp
   useradd -g dbgrp -d /home/omm -m -s /bin/bash omm
   echo "omm" | passwd --stdin omm
   mkdir -p /opt/software/openGauss
   chmod 755 -R /opt/software
   chown -R omm:dbgrp /opt/software/openGauss
   cd /opt/software/openGauss/
   wget https://opengauss.obs.cn-south-1.myhuaweicloud.com/2.0.0/x86/openGauss-2.0.0-CentOS-64bit-all.tar.gz
   tar -zxvf openGauss-2.0.0-CentOS-64bit-all.tar.gz
   tar -zxvf openGauss-2.0.0-CentOS-64bit-om.tar.gz

4. 最后，对于单机部署，您还需要进行环境设置：
- 操作系统要求使用虚拟机VMware和CentOS7.9。
- 虚拟机内存要求为3G，磁盘为100G。
- 修改系统版本设置。

请按照上述步骤进行opengauss单机部署。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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