1.挂载光驱并拷贝数据到指定目录/yumserver
[root@localhost mnt]# mount -t iso9660 /dev/cdrom /mnt/
mount: /dev/sr0 is write-protected, mounting read-only
[root@localhost mnt]# mkdir -p /yumserver
[root@localhost mnt]# cp -a /mnt/* /yumserver/
2.创建repo文件
[root@localhost yum.repos.d]# cd /etc/yum.repos.d
[root@localhost yum.repos.d]# mkdir -p bak
[root@localhost yum.repos.d]# cp *.repo ./bak
[root@localhost yum.repos.d]# cat cdrom.repo ##vim 去创建repo文件
[cdrom]
name=CentOS7 - cdrom
baseurl=file:///yumserver/
enable=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
3.验证yum源清单
[root@localhost yum.repos.d]# yum repolist
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
repo id repo name status
cdrom CentOS7 - cdrom 4,021
repolist: 4,021
[root@localhost yum.repos.d]#
