1、挂载系统光盘
mkdir /mnt/iso
mount -o loop /tools/CentOS-7-x86_64-DVD-1810.iso /mnt/iso
cd /mnt/iso/Packages/
rpm -ivh /mnt/iso/Packages/yum-utils-1.1.31-50.el7.noarch.rpm(图形界面安装,默契已安装)
如安装yum-utils依赖错误,按提示安装依赖包
rpm -ivh /mnt/iso/Packages/libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm
rpm -ivh /mnt/iso/Packages/python-chardet-2.2.1-1.el7_1.noarch.rpm
rpm -ivh /mnt/iso/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm
2、配置光盘yum源
# mkdir /etc/yum.repo.d/repo_bk
# mv /etc/yum.repo.d/*.repo /etc/yum.repo.d/repo_bk
# yum-config-manager --add-repo=file:///mnt/iso
# vim /etc/yum.repo.d/mnt_iso.repo 注:也可以直新建此文件操作
[mnt_iso]
name=added from: file:///mnt/iso/
baseurl=file:///mnt/iso/
#表示启用这个源
enabled=1
#表示对从这个源下载的rpm包不进行校验
gpgcheck=0
#表示对从这个源下载的rpm包进行校验
gpgcheck=1
gpgkey=file:///mnt/iso/RPM-GPG-KEY-CentOS-7 光盘校验证书
3、清理缓存并生成新的缓存
# yum clean all && yum makecache
# yum repolist #查看yum源是否生效