一般安裝好redhat后，不能注冊的話，不能使用系統自帶的yum源。但是我們可以自己配置yum源來解決這一問題。下面介紹下redhat配置163yum源。
1. 檢查是否安裝yum包
rpm -qa |grep yum
2. 刪除自帶的yum包
rpm -qa|grep yum|xargs rpm -e --nodeps因為一些包之間可能會有依賴關系，所以我們需要加上參數 --nodeps 無視依賴關系。
3. 下載yum包
Yum包下載地址http://mirrors.163.com/centos/
在這個網站里，你可以自己選擇需要下載的文件，進入形如5/或者6/的文件下載，其他的無法下載。 (rpm 版本會更新)
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-73.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-37.el6.noarch.rpm
4. 解壓yum包
rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
rpm -ivh yum-3.2.29-73.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-37.el6.noarch.rpm
5. 替換yum源
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
vi CentOS6-Base-163.repo注意原來的yum源配置文件是rhel-source.repo。這里把CentOS6-Base-163.repo替換掉rhel-source.repo。
mv rhel-source.repo rhel-source.repo.bak
mv CentOS6-Base-163.repo rhel-source.repo
6. 編輯替換后的rhel-source.repo。
#rhel-source.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-6 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
7. 清理並重建緩存
yum clean all
yum makecache
8. 更新yum
yum update
至此，redhat配置163yum源完成