Linux-RedHat7.2 使用CentOS源

-- 查看yum
rpm -qa |grep yum

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

--拷贝centos系统yum工具安装程序到linux指定目录下
wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm

wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-utils-1.1.31-34.el7.noarch.rpm

wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-updateonboot-1.1.31-34.el7.noarch.rpm

--安装yum包
rpm -ivh yum-*
rpm -ivh *.rpm

--新建repo配置文件
vim /etc/yum.repos.d/CentOS-Base.repo

--repo配置如下:

[base]

name=CentOS-$releasever - Base

baseurl=http://vault.centos.org/centos/7.2.1511/os/$basearch/

gpgcheck=1

gpgkey=http://vault.centos.org/centos/7.2.1511/os/x86_64/RPM-GPG-KEY-CentOS-7

#released updates

[updates]

name=CentOS-$releasever - Updates

baseurl=http://vault.centos.org/centos/7.2.1511/updates/$basearch/

gpgcheck=1

gpgkey=http://vault.centos.org/centos/7.2.1511/os/x86_64/RPM-GPG-KEY-CentOS-7

[extras]

name=CentOS-$releasever - Extras

baseurl=http://vault.centos.org/centos/7.2.1511/extras//$basearch/

gpgcheck=1

gpgkey=http://vault.centos.org/centos/7.2.1511/os/x86_64/RPM-GPG-KEY-CentOS-7

[centosplus]

name=CentOS-$releasever - Plus

baseurl=http://vault.centos.org/centos/7.2.1511/centosplus//$basearch/

gpgcheck=1

enabled=0