[转]CentOS中yum安装非标准库中的包(Nginx)
#yum install nginx补充：
如果遇到以下错误提示：
# yum -y install nginxLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfile * addons: centos.ustc.edu.cn * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: data.nicehosting.co.krSetting up Install ProcessNo package nginx available.Nothing to do
原因是：
对CentOS系统而言，Nginx不在标准库里，不过可以使用EPEL库，EPEL参考资料（http://www.cyberciti.biz/faq/rhel-fedora-centos-linux-enable-epel-repo/）。使用EPEL库安装Nginx，命令如下：
# rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm
检查一下 yum list:
#yum repolist
# yum repolistLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfile * addons: centos.ustc.edu.cn * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: data.nicehosting.co.krrepo id repo name statusaddons CentOS-5 - Addons enabled: 0base CentOS-5 - Base enabled: 3,434extras CentOS-5 - Extras enabled: 303updates CentOS-5 - Updates enabled: 919repolist: 4,656
如果没有 EPEL， 运行：
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
版本号需要调整， 如果找不到。
# rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpmRetrieving http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpmerror: skipping http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm - transfer failed - Unknown or unexpected error# rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpmRetrieving http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpmwarning: /var/tmp/rpm-xfer.2DN7ju: Header V3 DSA signature: NOKEY, key ID 217521f6Preparing... ########################################### 1:epel-release ###########################################
再检查一下 yum list,
# yum repolistLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfile * addons: centos.ustc.edu.cn * base: centos.ustc.edu.cn * epel: ftp.sjtu.edu.cn * extras: centos.ustc.edu.cn * updates: data.nicehosting.co.krepel | 3.7 kB 00:00 epel/primary_db | 3.3 MB 00:15 repo id repo name statusaddons CentOS-5 - Addons enabled: 0base CentOS-5 - Base enabled: 3,434epel Extra Packages for Enterprise Linux 5 - x86_64 enabled: 5,832extras CentOS-5 - Extras enabled: 303updates CentOS-5 - Updates enabled: 919repolist: 10,488 如果 EPEL 更新成功， 则运行：
#yum install nginx
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