CentOS7-配置yum国内源

CentOS7-配置yum国内源

1. 备份CentOS-Base.repo

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

2.下载aliyun源

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

3.生成缓存，更新yum源

yum clean all && rm -rf /var/cache/yum
yum makecache
yum -y upgrade // 更新系统时，软件和内核保持原样
yum -y update // 需要更新内核

4.非阿里云ECS用户

可能会出现 Couldn't resolve host 'mirrors.cloud.aliyuncs.com' 信息，不影响使用。可自行修改相关配置

sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo

5.总结一句话脚本

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup && \
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo && \
yum clean all && rm -rf /var/cache/yum && \
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo && \
yum makecache