創建掛載路徑
sudo mkdir /mnt/iso掛載ISO鏡像到目錄
sudo mount -o loop CentOS-7-x86_64-Minimal-1810.iso /mnt/iso下載地址： http://mirrors.sohu.com/centos/7.6.1810/isos/x86_64/CentOS-7-x86_64-Minimal-1810.iso
驗證掛載
df -h創建本地yum源配置文件
sudo touch /etc/yum.repos.d/local.repo編輯local.repo文件內容
[local_server]
name=Thisis a local repo
baseurl=file:///mnt/iso
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7更新yum源
yum clean all
yum makecache