1. 搭建本地光盤YUM源
[root@yum ~]# mkdir /mnt/cdrom/ ------》創建光盤掛載目錄
[root@yum ~]# mount /dev/cdrom /mnt/cdrom/ --------》掛在光盤
[root@yum ~]# cd /etc/yum.repos.d/ --------》切換到YUM配置目錄
[root@yum yum.repos.d]# tar czf repo.tar.gz ./* --------》將原來所有的文件進行打包備份
[root@yum yum.repos.d]# rm -f CentOS* --------》刪除原文件
[root@yum yum.repos.d]# vim CentOS-Media.repo --------》配置光盤源文件
[c6-media]
name=CentOS-$releasever - Media
baseurl=file:///mnt/cdrom --------》這裏爲你光盤的掛載目錄
gpgcheck=1 --------》是否啓動檢查GPG-KEY
enabled=1 --------》是否啓用YUM源
gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-CentOS-6 --》指定掛載目錄下的GPG-KEY文件
驗證：
2. 如果要讓公司所有的Linux主機可用內部源服務，可以用FTP/HTTP搭建一個YUM服務器，由於Http較爲簡便，我這裏就以HTTP的方式搭建一個YUM服務了。
繼上面的操作，我借用本地光盤源搭建一個HTTP的YUM服務！
2.1
HTTP我在上面已經通過YUM的方式安裝了，如果大家沒有安裝可以通過光盤裏面的安裝包進行安裝，聯網也可以通過網絡的YUM進行安裝。啓動http服務！關閉防火牆和SELinux！
[root@yum ~]# service httpd start
Starting httpd: httpd: apr_sockaddr_info_get() failed for yum.server [ OK ]
[root@yum ~]# chkconfig httpd on
[root@yum ~]# service iptables stop
[root@yum ~]# chkconfig iptables off
[root@yum ~]# setenforce 0
2.2
在Apache根目錄下建立子文件夾，如果想讓本YUM服務器爲不同版本的Linux服務，可根據情況創建目錄，然後將光盤內所有的文件CP至該目錄！
注：一般使用DVD1即可，當然也可以合併DVD1和DVD2來作爲源。
[root@yum ~]# mkdir -p /var/www/html/yum
[root@yum ~]# mkdir -p /var/www/html/yum/CentOS-6
[root@yum ~]# cp -prf /mnt/cdrom/* /var/www/html/yum/CentOS-6/
2.3
客戶端修改CentOS-Base.repo，建議先備份一個副本哦，這樣以後要從外網更新的話，可以再用。
[root@test1 yum.repos.d]# cp CentOS-Base.repo CentOS-Base.repo.bak1
[root@test1 yum.repos.d]# vim CentOS-Base.repo
###################CentOS-Base.repo內容修改後，如下#####################
# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # #
[base] name=CentOS-$releasever - Base #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os baseurl=http://172.20.1.11/yum/CentOS-6 enable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#released updates [updates] name=CentOS-$releasever - Updates #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates baseurl=http://172.20.1.11/yum/CentOS-6 enable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras baseurl=http://172.20.1.11/yum/CentOS-6 enable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib #baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 |
centosplus][contrib]的內容不需要修改，它們的enabled值默認值是0，即模塊不啓用。
2.4
客戶端測試！
附加：
DVD1和DVD2文件合併的步驟：
1.將DVD2光盤中Packages目錄下所有的rpm文件CP到DVD1的目錄下。
Cp /mnt/dvd2/Packages/*.rpm /var/www/html/yum/CentOS-6/Packages/
2.合併TRANS.TBL，將DVD2中TRANS.TBL的信息追加到DVD1中TRANS.TBL後面, 並排序保存。
cat mnt/dvd2/Packages/TRANS.TBL >> /var/www/html/yum/centos-6/Packages/TRANS.TBL
Mv /var/www/html/yum/centos-6/Packages/{TRANS.TBL,TRANS.TBL.BAK}
Sort /var/www/html/yum/centos-6/Packages/TRANS.TBL.BAK/var/www/html/yum/centos-6/Packages/TRANS.TBL