使用光盤鏡像作爲軟件yum源：
[1]上傳centos7光盤鏡像到/usr/local/src目錄下；（工具Xftp）
[2]掛載系統文件
mkdir /media/cdrom # 習慣用這個目錄名稱了； cd /usr/local/src ls CentOS-7.0-1406-x86_64-DVD.iso # mount -t iso9660 -o loop /usr/local/src/CentOS-7.0-1406-x86_64-DVD.iso /media/cdrom/ mount: /dev/loop0 is write-protected, mounting read-only # cd /media/cdrom/ [root@mariadb cdrom]# ls CentOS_BuildTag EULA p_w_picpaths LiveOS repodata RPM-GPG-KEY-CentOS-Testing-7 EFI GPL isolinux Packages RPM-GPG-KEY-CentOS-7 TRANS.TBL
[3]設置開機自動掛載系統鏡像文件
vim /etc/fstab /usr/local/src/CentOS-7.0-1406-x86_64-DVD.iso /media/cdrom/ iso9660 defaults,ro,loop 0 0 :x #保存並退出
備註：iso9660 CD-ROM光盤的標準文件系統
mount -l /usr/local/src/CentOS-7.0-1406-x86_64-DVD.iso on /media/cdrom type iso9660 (ro,relatime) [CentOS 7 x86_64]
[4]配置本地yum源文件；
vim /etc/yum.repos.d/centos7-media.repo [centos7-media] name=Red Hat Centos linux 7.0 # 自己定義 baseurl=file:///media/cdrom # 本地鏡像文件路徑 enabled=1 # 1爲啓動yum源，0爲禁用 gpgcheck=1 # 1爲檢查GPG-KEY，0爲不檢查 gpgkey=file:///media/cdrom/RPM-GPG-KEY-CentOS-7 #GPG-KEY文件路徑
yum clean all #清除緩存 Loaded plugins: fastestmirror Cleaning repos: base centos7-media epel extras updates Cleaning up everything Cleaning up list of fastest mirrors
[root@mariadb ~]# yum makecache #緩存本地yum源包信息 Loaded plugins: fastestmirror base | 3.6 kB 00:00:00 centos7-media | 3.6 kB 00:00:00 epel/x86_64/metalink | 5.3 kB 00:00:00 epel | 4.4 kB 00:00:00 extras | 3.3 kB 00:00:00 updates | 3.4 kB 00:00:00 (1/20): centos7-media/group_gz | 157 kB 00:00:00 (2/20): centos7-media/filelists_db | 2.8 MB 00:00:00 (3/20): base/7/x86_64/group_gz | 157 kB 00:00:00 (4/20): centos7-media/primary_db | 2.7 MB 00:00:00 (5/20): centos7-media/other_db | 1.1 MB 00:00:00
[5]使用本地yum源安裝軟件：
# yum --enablerepo=centos7-media search httpd # 查看是否有httpd軟件包 ... httpd.x86_64 : Apache HTTP Server httpd-devel.x86_64 : Development interfaces for the Apache HTTP server httpd-itk.x86_64 : MPM Itk for Apache HTTP Server httpd-manual.noarch : Documentation for the Apache HTTP server httpd-tools.x86_64 : Tools for use with the Apache HTTP Server ... # yum --enablerepo=centos7-media -y install httpd Installed: httpd.x86_64 0:2.4.6-18.el7.centos
# rpm -qa httpd httpd-2.4.6-18.el7.centos.x86_64
到此本地yum源已配置完畢！