redhat6.5安装postgresql8.4数据库

step1 先移除原有的postgresql数据库（如果有），否则直接跳过

rpm -qa | grep postgresql*

rpm -ev rpmName

step2 下载新的postgresql rpm安装包
网址：http://mirrors.sohu.com/centos/6.6/os/x86_64/Packages/
wget http://mirrors.sohu.com/centos/6.6/os/x86_64/Packages/postgresql-libs-8.4.20-1.el6_5.x86_64.rpm

wget http://mirrors.sohu.com/centos/6.6/os/x86_64/Packages/postgresql-8.4.20-1.el6_5.x86_64.rpm

wget http://mirrors.sohu.com/centos/6.6/os/x86_64/Packages/postgresql-devel-8.4.20-1.el6_5.x86_64.rpm

wget http://mirrors.sohu.com/centos/6.6/os/x86_64/Packages/postgresql-server-8.4.20-1.el6_5.x86_64.rpm

下载完成后，按照下载顺序依次安装

rpm -ivh postgresql-libs-8.4.20-1.el6_5.x86_64.rpm

rpm -ivh postgresql-8.4.20-1.el6_5.x86_64.rpm

rpm -ivh postgresql-devel-8.4.20-1.el6_5.x86_64.rpm

rpm -ivh postgresql-server-8.4.20-1.el6_5.x86_64.rpm

step3 初始化后启动数据库服务

初始化数据库，默认路径为/var/lib/pgsql/data

# service postgresql initdb

启动服务

# service postgresql start  

redhat6.5安装postgresql8.4数据库

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