redhat linux 8 安装 阿里云centos-8 yum源（网络yum源配置）

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。假如你想使用redhat同步不想耗费几千元注册体系，就可以使用centos的yum源来取代。
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

1. [root@server130 yum.repos.d]# cat Centos-8.repo
2. # CentOS-Base.repo
3. #
4. # The mirror system uses the connecting IP address of the client and the
5. # update status of each mirror to pick mirrors that are updated to and
6. # geographically close to the client.  You should use this for CentOS updates
7. # unless you are manually picking other mirrors.
8. #
9. # If the mirrorlist= does not work for you, as a fall back you can try the
10. # remarked out baseurl= line instead.
11. #
12. #
14. [base]
15. name=CentOS-$releasever - Base - mirrors.aliyun.com
16. #failovermethod=priority
17. baseurl=http://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/
18.         http://mirrors.aliyuncs.com/centos/$releasever/BaseOS/$basearch/os/
19.         http://mirrors.cloud.aliyuncs.com/centos/$releasever/BaseOS/$basearch/os/
20. gpgcheck=1
21. gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
23. #additional packages that may be useful
24. [extras]
25. name=CentOS-$releasever - Extras - mirrors.aliyun.com
26. #failovermethod=priority
27. baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/os/
28.         http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/os/
29.         http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/os/
30. gpgcheck=1
31. gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
33. #additional packages that extend functionality of existing packages
34. [centosplus]
35. name=CentOS-$releasever - Plus - mirrors.aliyun.com
36. #failovermethod=priority
37. baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/os/
38.         http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/os/
39.         http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/os/
40. gpgcheck=1
41. enabled=0
42. gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
44. [PowerTools]
45. name=CentOS-$releasever - PowerTools - mirrors.aliyun.com
46. #failovermethod=priority
47. baseurl=http://mirrors.aliyun.com/centos/$releasever/PowerTools/$basearch/os/
48.         http://mirrors.aliyuncs.com/centos/$releasever/PowerTools/$basearch/os/
49.         http://mirrors.cloud.aliyuncs.com/centos/$releasever/PowerTools/$basearch/os/
50. gpgcheck=1
51. enabled=0
52. gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official
55. [AppStream]
56. name=CentOS-$releasever - AppStream - mirrors.aliyun.com
57. #failovermethod=priority
58. baseurl=http://mirrors.aliyun.com/centos/$releasever/AppStream/$basearch/os/
59.         http://mirrors.aliyuncs.com/centos/$releasever/AppStream/$basearch/os/
60.         http://mirrors.cloud.aliyuncs.com/centos/$releasever/AppStream/$basearch/os/
61. gpgcheck=1
62. gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-Official

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        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

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

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3、清除yum缓存

1. [root@server130 yum.repos.d]# yum clean all
2. Updating Subscription Management repositories.
3. Unable to read consumer identity
5. This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
7. 18 files removed

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4、缓存包信息

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

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5、检察配置的yum仓库

1. [root@server130 yum.repos.d]# yum repolist all
2. Updating Subscription Management repositories.
3. Unable to read consumer identity
5. This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
7. repo id              repo name                                             status
8. AppStream            CentOS-8 - AppStream - mirrors.aliyun.com             enabled
9. PowerTools           CentOS-8 - PowerTools - mirrors.aliyun.com            disabled
10. base                 CentOS-8 - Base - mirrors.aliyun.com                  enabled
11. centosplus           CentOS-8 - Plus - mirrors.aliyun.com                  disabled
12. extras               CentOS-8 - Extras - mirrors.aliyun.com                enabled

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