1. 备份原有yum配置文件
# 切换到源文件目录
cd /etc/yum.repos.d/
# 下载阿里云Centos8的源文件
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
# 备份旧的源文件
mv redhat.repo redhat.repo_bak2. 修改配置文件
# 修改如下两个配置文件, 将enabled的值改为0
vi /etc/yum/pluginconf.d/product-id.conf
vi /etc/yum/pluginconf.d/subscription-manager.conf3. 新建yum缓存
# 清除yum缓存
yum clean all
# 构建新的yum缓存
yum makecache完成后查看yum是否可以联到阿里云的源.
4. yum源失败，尝试切换如下源
# 切换到源文件目录
cd /etc/yum.repos.d/文件1
这是已经停止维护的8.5-Vault版本的源。
[base]
name=CentOS-8.5.2111 - Base - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos-vault/8.5.2111/BaseOS/$basearch/os/
http://mirrors.aliyuncs.com/centos-vault/8.5.2111/BaseOS/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/BaseOS/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-Official
#additional packages that may be useful
[extras]
name=CentOS-8.5.2111 - Extras - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos-vault/8.5.2111/extras/$basearch/os/
http://mirrors.aliyuncs.com/centos-vault/8.5.2111/extras/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/extras/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-Official
#additional packages that extend functionality of existing packages
[centos-vaultplus]
name=CentOS-8.5.2111 - Plus - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos-vault/8.5.2111/centos-vaultplus/$basearch/os/
http://mirrors.aliyuncs.com/centos-vault/8.5.2111/centos-vaultplus/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/centos-vaultplus/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-Official
[PowerTools]
name=CentOS-8.5.2111 - PowerTools - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos-vault/8.5.2111/PowerTools/$basearch/os/
http://mirrors.aliyuncs.com/centos-vault/8.5.2111/PowerTools/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/PowerTools/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-Official
[AppStream]
name=CentOS-8.5.2111 - AppStream - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos-vault/8.5.2111/AppStream/$basearch/os/
http://mirrors.aliyuncs.com/centos-vault/8.5.2111/AppStream/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos-vault/8.5.2111/AppStream/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-Official文件2
这是8-stream版本的阿里源。
# 创建文件
vi CentOS-stream-8.repo[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos/8-stream/BaseOS/$basearch/os/
http://mirrors.aliyuncs.com/centos/centos/8-stream/BaseOS/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos/8-stream/BaseOS/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=https://mirrors.aliyun.com/centos-stream/RPM-GPG-KEY-CentOS-Official
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos/8-stream/extras/$basearch/os/
http://mirrors.aliyun.com/centos/8-stream/extras/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos/8-stream/extras/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-stream/RPM-GPG-KEY-CentOS-Official
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos/8-stream/centosplus/$basearch/os/
http://mirrors.aliyun.com/centos/8-stream/centosplus/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos/8-stream/centosplus/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-stream/RPM-GPG-KEY-CentOS-Official
[PowerTools]
name=CentOS-$releasever - PowerTools - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos/8-stream/PowerTools/$basearch/os/
http://mirrors.aliyuncs.com/centos/8-stream/PowerTools/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos/8-stream/PowerTools/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-stream/RPM-GPG-KEY-CentOS-Official
[AppStream]
name=CentOS-$releasever - AppStream - mirrors.aliyun.com
#failovermethod=priority
baseurl=https://mirrors.aliyun.com/centos/8-stream/AppStream/$basearch/os/
http://mirrors.aliyuncs.com/centos/8-stream/AppStream/$basearch/os/
http://mirrors.cloud.aliyuncs.com/centos/8-stream/AppStream/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos-stream/RPM-GPG-KEY-CentOS-Official或者
[base]
name=CentOS-8-stream - Base - mirrors.aliyun.com
baseurl=https://mirrors.aliyun.com/centos/8-stream/BaseOS/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
#additional packages that may be useful
[extras]
name=CentOS-8-stream - Extras - mirrors.aliyun.com
baseurl=https://mirrors.aliyun.com/centos/8-stream/extras/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-8-stream - Plus - mirrors.aliyun.com
baseurl=https://mirrors.aliyun.com/centos/8-stream/centosplus/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
[PowerTools]
name=CentOS-8-stream - PowerTools - mirrors.aliyun.com
baseurl=https://mirrors.aliyun.com/centos/8-stream/PowerTools/$basearch/os/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
[AppStream]
name=CentOS-8-stream - AppStream - mirrors.aliyun.com
baseurl=https://mirrors.aliyun.com/centos/8-stream/AppStream/$basearch/os/
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
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