更新yum源cd/etc/yum.repos.dmvCentOS-Base.repoCentOS-Base.repo.savewgethttp://mirrors.sohu.com/help/CentOS-Base-sohu.repoyumupdateyummakecache安装高版本mysqlwgethttp://centos.ustc.edu.cn/epel/5/x86_64/epel-release-5-4.noarch.rpmwgethttp://rpms.famillecollet.com/enterprise/5/remi/x86_64/remi-release-5.9-1.el5.remi.noa