Install the repository RPM: yum install https://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-7-x86_64/pgdg-redhat94-9.4-3.noarch.rpm Install the client packages: yum install postgresql94 Optionally install the server packages: yum install po
源自:http://www.cnblogs.com/yangbingqi/p/3328610.html 刚安装完CentOS,使用yum命令安装一些常用的软件,使用如下命令:yum grouplist | more. 提示如下错误信息: Loaded plugins: fastestmirror Setting up Group Process Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x