centos更换yum源

1. 安装wget

yum install -y wget

2. 备份配置文件

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

3. 下载华为yum源

wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo

4. 清理缓存

yum clean all

5. 重新生成缓存

yum makecache

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