centos内网镜像挂载

 

centos挂载ISO镜像，配置yum源

由于内网无法访问网络，所以需先挂载centos7的ISO镜像，然后配置yum源安装编译所需要的依赖包

镜像下载地址：https://vault.centos.org/7.5.1804/isos/x86_64/CentOS-7-x86_64-DVD-1804.iso

创建ISO镜像存放目录并上传ISO镜像文件
上传镜像到/opt　　
[root@localhost ~]# mount -o loop /opt/CentOS-7-x86_64-DVD-1804.iso /mnt 挂载镜像到/mnt
[root@localhost ~]# df -h 　　#查看挂载

#显示这一行说明已经镜像已经挂载成功
配置yum源：
[root@localhost ~]# mkdir /etc/yum.repos.d/yumbak 备份yum源

[root@localhost ~]# cd /etc/yum.repos.d 
[root@localhost ~]# mv *.repo yumbak/ 　　#备份原有配置文件
[root@localhost ~]#  vim /etc/yum.repos.d/local.repo 　　#新建yum源

[local]
name=local
baseurl=file:///mnt 　　#此处写镜像挂载目录
gpgcheck=0
enabled=1

 

[root@localhost ~]#  yum clean all 　　#清空yum缓存
Loaded plugins: fastestmirror
Cleaning repos: centos7-iso
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
[root@localhost ~]# yum makecache
[root@localhost ~]# yum -y install gcc　　#尝试yum安装gcc是否可以安装