RHEL中安裝Centos的yum的步驟

1.刪除RedHat原有的yum：

rpm -aq | grep yum | xargs rpm -e --nodeps

2.下載yum安裝組件：（隨本機安裝版本而定）

wget http://mirrors.163.com/centos/6.3/os/x86_64/Packages/yum-3.2.29-30.el6.centos.noarch.rpm wget http://mirrors.163.com/centos/6.3/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpmwget http://mirrors.163.com/centos/6.3/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpmwget http://mirrors.163.com/centos/6.3/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm

如果不能下載也可以使用自己另外下載的centos裡面的安裝包

3.進行安裝yum

rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpmrpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpmrpm -ivh yum-3.2.29-30.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm

最後兩個包一塊安裝，會相互依賴

4.在/etc/yum.repos.d/檔案夾下建立一個名為rhel-debuginfo.repo的檔案，使用gedit輸入以下的內容:

[base]name=CentOS-$releasever - Basebaseurl=http://mirrors.163.com/centos/6.3/os/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6#released updates[updates]name=CentOS-$releasever - Updatesbaseurl=http://mirrors.163.com/centos/6.3/updates/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6#packages used/produced in the build but not released#[addons]#name=CentOS-$releasever - Addons#baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/#gpgcheck=1#gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6#additional packages that may be useful[extras]name=CentOS-$releasever - Extrasbaseurl=http://mirrors.163.com/centos/6.3/extras/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6#additional packages that extend functionality of existing packages[centosplus]name=CentOS-$releasever - Plusbaseurl=http://mirrors.163.com/centos/6.3/centosplus/$basearch/gpgcheck=1enabled=0

5.yum clean all

6.這時候也可以測試一下yum命令是否可用，也可以使用yum update進行升級。

yum install vim