Redhat6.9更换yum源

1、查询安装的rpm包

rpm -qa |grep yum

2. 删除自带的 rpm包

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

因为一些包之间可能会有依赖关系，所以我们需要加上参数 --nodeps 无视依赖关系。

3. 下载rpm包

rpm包下载地址http://mirrors.163.com/centos/6.9/os/x86_64/

在这个网站里，你可以自己选择需要下载的文件，进入形如5/或者6/的文件下载，其他的无法下载。

# mkdir yum
# cd yum/
wget http://mirrors.163.com/centos/6.9/os/x86_64/Packages/yum-3.2.29-81.el6.centos.noarch.rpm wget http://mirrors.163.com/centos/6.9/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-40.el6.noarch.rpm wget http://mirrors.163.com/centos/6.9/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm wget http://mirrors.163.com/centos/6.9/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm[/code]4、安装RPM包 
# rpm -ivh *.rpm
# rpm -ivh yum*.rpm
5、删除原来的yum源
# cd /etc/yum.repos.d
# rm -f *.repo
6、下载163的yum源
# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo[/code]7、编辑yum源repo文件 
vim CentOS6-Base-163.repo
name=CentOS-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/6.9/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6.9/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$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-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6.9/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6.9/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6.9/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6


8、清理并重建缓存
yum clean all
yum makecache fast


9、更换完毕。