1、创建目录，挂载光盘
[root@localhost ~]# mkdir /mnt/iso
[root@localhost ~]# mount /dev/sr0 /mnt/iso
mount: /dev/sr0 is write-protected, mounting read-only
2、删除原来的仓库配置文件，新建配置文件
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ls
redhat.repo
[root@localhost yum.repos.d]# rm -f redhat.repo
[root@localhost yum.repos.d]# vi base.repo
[rhel7]
name=rhel7
baseurl=file:///mnt/iso
enabled=1
gpgcheck=1
：x
[root@localhost yum.repos.d]# yum clean all
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
: manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Cleaning repos: rhel7
Cleaning up everything
[root@localhost yum.repos.d]# yum makecache
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
: manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
rhel7 | 4.1 kB 00:00
(1/5): rhel7/group_gz | 136 kB 00:00
(2/5): rhel7/filelists_db | 3.3 MB 00:00
(3/5): rhel7/primary_db | 3.9 MB 00:00
(4/5): rhel7/other_db | 1.5 MB 00:00
(5/5): rhel7/productid | 1.6 kB 00:00
Metadata Cache Created
3、查看配置
[root@localhost yum.repos.d]# yum repolist all
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-
: manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
repo id repo name status
rhel7 rhel7 enabled: 4,751
repolist: 4,751