Centos7 配置ISO鏡像文件爲本地YUM源

1）創建掛載路徑

sudo mkdir /media/iso

2）掛載ISO鏡像到目錄

sudo mount -o loop CentOS-7-x86_64-Minimal-1708.iso /media/iso

3）驗證掛載

df -h

4）創建本地yum源配置文件

sudo touch /etc/yum.repos.d/local.repo

5）編輯local.repo文件內容

[local_server]
name=Thisis a local repo
baseurl=file:///media/iso
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

 6）更新yum源

yum clean all 
yum makecache