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首先备份/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
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进入yum源配置文件所在文件夹
cd /etc/yum.repos.d/
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下载163的yum源配置文件,放入/etc/yum.repos.d/
[root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
[root@localhost yum.repos.d]# mv CentOS6-Base-163.repo CentOS-Base.repo
如果提示wget没安装则先安装wget
yum -y install wget
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运行yum makecache生成缓存
yum makecache
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更新系统
yum -y update