1:创建挂载目录
[root@centos7-103 ~]# cd /mnt
[root@centos7-103 mnt]# mkdir ISO cdrom
通过winSCP将ISO镜像上传到/mnt/ISO 这个目录里面
2:挂载目录
[root@centos7-103 mnt]# mount -o loop /mnt/ISO/CentOS-7-x86_64-DVD-2009.iso /mnt/cdrom
查看挂载情况
[root@centos7-103 mnt]# ls /mnt/cdrom
这就说明挂载成功了
3:进入yum目录
[root@centos7-103 mnt]# cd /etc/yum.repos.d/
[root@centos7-103 yum.repos.d]# mkdir backup
[root@centos7-103 yum.repos.d]# mv ./*.repo backup
4:配置yum文件
[root@centos7-103 yum.repos.d]# vi CentOS-Base.repo
[CentOS-Base]
name=CentOS-Base
baseurl=file:///mnt/cdrom
gpgcheck=0
enabled=1
5:清空缓存重新加载
[root@centos7-103 yum.repos.d]# yum clean all
[root@centos7-103 yum.repos.d]# yum makecache
6:安装测试
[root@centos7-103 yum.repos.d]# yum install -y vim
7:设置开机自动挂载
[root@centos7-103 yum.repos.d]# vim /etc/fstab
/mnt/ISO/CentOS-7-x86_64-DVD-2009.iso /mnt/cdrom iso9660 defaults 0 0