请教个Linux安装RPM的知识

[蓝天的IT生涯]

我在安装nginx的安装包的时候，查到的信息是，先用rpm命令安装一个rpm包，然后在用yum来安装。
两条命令如下：rpm -ivh nginx-release-centos-6-0.el6.ngx.noarch.rpm yum install nginx
请教下：rpm -ivh nginx-release-centos-6-0.el6.ngx.noarch.rpm 这个命令不就是安装nginx包了吗，为什么后面还要 yum install nginx来安装呢？

[小笨和漂向北方]

The rpm u installed is actually a repository config file. If u check /etc/yum.conf.d, u will find it. By install repos through rpm, it saves u time and effort to create this config file by hand. It is very common to import a new repos for RHEL or centos. After the new repos is ready, yum is able to identify and grab new packages. For ur case, it is nginx...

[ljc007]

俺喜欢自己用源代码安装

tar -xzf pcre-8.35.tar.gz
tar xf zlib-1.2.8.tar.gz
tar -xzf nginx-1.6.2.tar.gz
cd nginx-1.6.2

./configure \
--prefix=/opt/nginx \
--sbin-path=/opt/nginx/nginx \
--conf-path=/opt/nginx/nginx.conf \
--pid-path=/opt/nginx/nginx.pid \
--with-http_ssl_module \
--with-pcre=../pcre-8.35 \
--with-zlib=../zlib-1.2.8

make
make install

[小笨和漂向北方]

looks like you still haven't understood why...