1、yum源备份
[root@kangvcar ~]# mkdir /opt/centos-yum.bak
[root@kangvcar ~]# mv /etc/yum.repos.d/* /opt/centos-yum.bak/
2、下载aliyun yum源repo文件(对应自己的系统版本下载即可)
各系统版本repo文件对应的下载操作
CentOS 5
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
CentOS 6
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
CentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
3、清除缓存
[root@kangvcar ~]# yum clean all
[root@kangvcar ~]# yum makecache //把yum源缓存到本地，加快软件的搜索好安装速度
[root@kangvcar ~]# yum list
CentOS yum源修改成国内的163源
1、yum源备份
[root@kangvcar ~]# mkdir /opt/centos-yum.bak
[root@kangvcar ~]# mv /etc/yum.repos.d/* /opt/centos-yum.bak/
2、下载163 yum源repo文件
各系统版本repo文件对应的下载操作
CentOS 5
wget -O /etc/yum.repos.d/CentOS5-Base-163.repo http://mirrors.163.com/.help/CentOS5-Base-163.repo
CentOS 6
wget -O /etc/yum.repos.d/CentOS6-Base-163.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
CentOS 7
wget -O /etc/yum.repos.d/CentOS7-Base-163.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
3、清除缓存
[root@kangvcar ~]# yum clean all
[root@kangvcar ~]# yum makecache //把yum源缓存到本地，加快软件的搜索好安装速度
[root@kangvcar ~]# yum list
