Linux 修改yum源，linuxyum源

Linux 修改yum源，linuxyum源

步骤如下：

执行如下命令，查看yum包

rpm -qa|grep yum

执行如下命令，卸载原有源

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

下载新的yum包

wget http://centos.ustc.edu.cn/centos/6/os/i386/Packages/yum-3.2.29-22.el6.centos.noarch.rpm
wget http://centos.ustc.edu.cn/centos/6/os/i386/Packages/yum-metadata-parser-1.1.2-16.el6.i686.rpm 
wget http://centos.ustc.edu.cn/centos/6/os/i386/Packages/yum-plugin-fastestmirror-1.1.30-10.el6.noarch.rpm

执行如下命令，安装新的yum包

rpm -ivh yum-*

下载yum的配置源

wget http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo

修改配置源，内容如下：

[base]
name=CentOS-6 - Base
baseurl=http://centos.ustc.edu.cn/centos/6/os/$basearch/
gpgcheck=1
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6

#released updates
[update]
name=CentOS-6 - Updates
baseurl=http://centos.ustc.edu.cn/centos/6/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#packages used/produced in the build but not released
[cr]
name=CentOS-6 - cr
baseurl=http://centos.ustc.edu.cn/centos/6/cr/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras
baseurl=http://centos.ustc.edu.cn/centos/6/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6 - Plus
baseurl=http://centos.ustc.edu.cn/centos/6/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-6 - Contrib
baseurl=http://centos.ustc.edu.cn/centos/6/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

[fasttrack]
name=CentOS-6 - fasttrack
baseurl=http://centos.ustc.edu.cn/centos/6/fasttrack/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

在该目录下执行yum update进行统一更新