1、起因：

使用redhat自带镜像yum源安装软件时，报错：unable to read consumer identity。这个提示告诉我们，yum没有读取到你的用户id。如果你想使用redhat同步不想花费几千元注册系统，就可以使用centos的yum源来代替。

2、centos-8 yum网络源配置

        2.1、访问阿里云镜像站，下载repo镜像下载页

        地址：https://mirrors.aliyun.com/repo/

        下载：Centos-8.repo

        打开所下载的centos-8.repo，上传至/etc/yum.repos.d/目录下

[root@server130 yum.repos.d]# cat Centos-8.repo # CentOS-Base.repo## The mirror system uses the connecting IP address of the client and the# update status of each mirror to pick mirrors that are updated to and# geographically close to the client. You should use this for CentOS updates# unless you are manually picking other mirrors.## If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead.## [base]name=CentOS-$releasever - Base - mirrors.aliyun.com#failovermethod=prioritybaseurl=http://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/ http://mirrors.aliyuncs.com/centos/$releasever/BaseOS/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/BaseOS/$basearch/os/gpgcheck=1gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official #additional packages that may be useful[extras]name=CentOS-$releasever - Extras - mirrors.aliyun.com#failovermethod=prioritybaseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/os/ http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/os/gpgcheck=1gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official #additional packages that extend functionality of existing packages[centosplus]name=CentOS-$releasever - Plus - mirrors.aliyun.com#failovermethod=prioritybaseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/os/ http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/os/gpgcheck=1enabled=0gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official [PowerTools]name=CentOS-$releasever - PowerTools - mirrors.aliyun.com#failovermethod=prioritybaseurl=http://mirrors.aliyun.com/centos/$releasever/PowerTools/$basearch/os/ http://mirrors.aliyuncs.com/centos/$releasever/PowerTools/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/PowerTools/$basearch/os/gpgcheck=1enabled=0gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official[AppStream]name=CentOS-$releasever - AppStream - mirrors.aliyun.com#failovermethod=prioritybaseurl=http://mirrors.aliyun.com/centos/$releasever/AppStream/$basearch/os/ http://mirrors.aliyuncs.com/centos/$releasever/AppStream/$basearch/os/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/AppStream/$basearch/os/gpgcheck=1gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official

        2.2、直接在服务器上直接wget下载repo配置文件至/etc/yum.repos.d/目录下

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

3、清除yum缓存

[root@server130 yum.repos.d]# yum clean allUpdating Subscription Management repositories.Unable to read consumer identityThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.18 files removed

4、缓存包信息

[root@server130 yum.repos.d]# yum makecacheUpdating Subscription Management repositories.Unable to read consumer identityThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.CentOS-8 - Base - mirrors.aliyun.com 3.2 MB/s | 4.6 MB 00:01 CentOS-8 - Extras - mirrors.aliyun.com 22 kB/s | 10 kB 00:00 CentOS-8 - AppStream - mirrors.aliyun.com 3.4 MB/s | 8.4 MB 00:02 Metadata cache created.

5、查看配置的yum仓库

[root@server130 yum.repos.d]# yum repolist allUpdating Subscription Management repositories.Unable to read consumer identityThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.repo id repo name statusAppStream CentOS-8 - AppStream - mirrors.aliyun.com enabledPowerTools CentOS-8 - PowerTools - mirrors.aliyun.com disabledbase CentOS-8 - Base - mirrors.aliyun.com enabledcentosplus CentOS-8 - Plus - mirrors.aliyun.com disabledextras CentOS-8 - Extras - mirrors.aliyun.com enabled