首先
[root@mode media]# cd /etc/yum.repos.d/ [root@mode yum.repos.d]# ll total 16 -rw-r--r-- 1 root root 560 Dec 19 01:20 CentOS-Media.repo drwxr-xr-x 2 root root 4096 Dec 18 20:03 bak drwxr-xr-x 2 root root 4096 Jan 28 19:17 ncurses-devel drwxr-xr-x 2 root root 4096 Mar 12 18:32 openssl-devel [root@mode yum.repos.d]# cat CentOS-Media.repo # CentOS-Media.repo # # This repo is used to mount the default locations for a CDROM / DVD on # CentOS-5. You can use this repo and yum to install items directly off the # DVD ISO that we release. # # To use this repo, put in your DVD and use it with the other repos too: # yum --enablerepo=c5-media [command] # # or for ONLY the media repo, do this: # # yum --disablerepo=* --enablerepo=c5-media [command] [c5-media] name=CentOS-$releasever - Media baseurl=file:///mnt/cdrom/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
看到CentOS-Media.repo中的 baseurl=file:///mnt/cdrom/了吗
假设指定了CentOS-meida源，系统会依据路径查找安装 所须要的包
然后创建文件夹文件，将镜像挂载到那个文件夹中
、
[root@mode yum.repos.d]# mkdir -p /mnt/cdrom [root@mode yum.repos.d]# mount -o loop /dev/cdrom /mnt/cdrom然后就能够安装须要安装的软件了：
[root@mode yum.repos.d]# yum --disablerepo=* --enablerepo=c5-media install xinetd Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package xinetd.x86_64 2:2.3.14-16.el5 set to be updated --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================================================= Installing: xinetd x86_64 2:2.3.14-16.el5 c5-media 127 k Transaction Summary ======================================================================================================================================================================= Install 1 Package(s) Upgrade 0 Package(s) Total download size: 127 k Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : xinetd 1/1 Installed: xinetd.x86_64 2:2.3.14-16.el5 Complete! [root@mode yum.repos.d]#
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