一：挂载光盘

1、mkdir     /mnt/cdrom：创建新挂载点

2、临时挂载：mount   /dev/cdrom  /mnt/cdrom

二、配置yum源

1、cd   /etc/yum.repos ：进入源目录

2、进入该目录查看：ll

[root@localhost yum.repos.d]# ll
total 4
drwxr-xr-x. 2 root root 187 Dec  9  2017 bak
-rw-r--r--. 1 root root 560 Dec  9  2017 local.repo
3、编辑.repo文件：vi local.repo，更改baseurl为：file:///mnt/cdrom，自己的挂载点

三、安装软件

1、输入：yum repolist查看yum仓库状态

[root@localhost yum.repos.d]# yum repolist
Loaded plugins: fastestmirror, langpacks
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Loading mirror speeds from cached hostfile
repo id                                              repo name
!c7-media                                            CentOS-7 - Media
repolist: 9,363
2、利用yum -y install 软件名开始安装软件。

 yum install -y svn git gcc gcc-c++ libX11-devel libtool-ltdl-devel glibc-static libstdc++-devel openssl-randr-devel libXfixes-devel libjpeg-devel cyrus-sasl-devel glib2-devel pixman-devel celt051-devel pyparsing alslugins-base-devel gstreamer-devel gtk2-devel libwebp-devel libva-devel libsysfs-devel SDL-devel SDL_ttf-devel qel dos2unix rpm-build

结束后出现：

Complete! 安装成功！

参考地址：https://www.cnblogs.com/xiaoaofengyue/p/8080494.html