1.添加 yum repo
#sudo vi /etc/yum.repos.d/mongodb-org-4.0.repo
2. 添加如下字符
[mongodb-org-4.0] name=MongoDB Repository baseurl=https://repo.mongodb.org/yum/redhat/7Server/mongodb-org/4.0/x86_64/ gpgcheck=1 enabled=1 gpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc
3. 安装MongoDB
# yum install -y mongodb-org
安装完毕后，看看都装到哪里去了。
# rpm -ql mongodb-org-server
4. 启动 MongoDB
systemctl enable mongod
systemctl start mongod
systemctl status mongod
