腾讯云Centos8更换源

备份官方源

cd /etc/yum.repos.d
mkdir backup
mv ./CentOS-* ./backup/

使用腾讯源

在目录/etc/yum.repos.d下，创建 CentOS-Base.repo 文件

vi /etc/yum.repos.d/CentOS-Base.repo

写入如下内容

[base]
name=CentOS-$releasever - Base - mirrors.cloud.tencent.com
#failovermethod=priority
baseurl=https://mirrors.cloud.tencent.com/centos/$releasever/BaseOS/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.cloud.tencent.com/centos/RPM-GPG-KEY-CentOS-Official

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.cloud.tencent.com
#failovermethod=priority
baseurl=https://mirrors.cloud.tencent.com/centos/$releasever/extras/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.cloud.tencent.com/centos/RPM-GPG-KEY-CentOS-Official

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.cloud.tencent.com
#failovermethod=priority
baseurl=https://mirrors.cloud.tencent.com/centos/$releasever/centosplus/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.cloud.tencent.com/centos/RPM-GPG-KEY-CentOS-Official

[PowerTools]
name=CentOS-$releasever - PowerTools - mirrors.cloud.tencent.com
#failovermethod=priority
baseurl=https://mirrors.cloud.tencent.com/centos/$releasever/PowerTools/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.cloud.tencent.com/centos/RPM-GPG-KEY-CentOS-Official


[AppStream]
name=CentOS-$releasever - AppStream - mirrors.cloud.tencent.com
#failovermethod=priority
baseurl=https://mirrors.cloud.tencent.com/centos/$releasever/AppStream/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.cloud.tencent.com/centos/RPM-GPG-KEY-CentOS-Official

创建缓存

yum makecache