腾讯云轻量全部源均修改失败

1. 处理器架构

[x] x86_64 x86_32
[ ] arm64 arm/v8 arm/v7 arm/v6
[ ] ppc64le s390x
[ ] Other

2. 使用环境

[ ] Debian
[ ] Ubuntu
[ ] Kali Linux
[ ] Red Hat Enterprise Linux
[x] CentOS
[ ] Fedora

3. 使用环境版本

A：Linux VM-8-15-centos 3.10.0-1160.66.1.el7.x86_64 #1 SMP Wed May 18 16:02:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

4. 详细叙述您的问题

(1) 具体问题

A：执行脚本后提示Linux VM-8-15-centos 3.10.0-1160.66.1.el7.x86_64 #1 SMP Wed May 18 16:02:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux 换源均错误

(2) 详细的系统日志

A：

+---------------------------------------------------+
|                                                   |
|   =============================================   |
|                                                   |
|       欢迎使用 Linux 一键更换国内软件源脚本       |
|                                                   |
|   =============================================   |
|                                                   |
+---------------------------------------------------+

#####################################################

            提供以下国内软件源可供选择：

#####################################################

 ❖   阿里云              1)
 ❖   腾讯云              2)
 ❖   华为云              3)
 ❖   网易                4)
 ❖   搜狐                5)
 ❖   清华大学            6)
 ❖   浙江大学            7)
 ❖   南京大学            8)
 ❖   重庆大学            9)
 ❖   兰州大学           10)
 ❖   上海交通大学       11)
 ❖   哈尔滨工业大学     12)
 ❖   中国科学技术大学   13)

#####################################################

        运行环境  CentOS Linux 7 x86_64
        系统时间  2023-01-30 00:11:35

#####################################################

└─ 请选择并输入你想使用的软件源 [ 1-13 ]：2

  └─ 默认使用镜像站的公网地址，是否继续? [Y/n] y

  └─ 检测到系统已安装 EPEL 扩展源，是否替换/覆盖为国内源? [Y/n] y

└─ 软件源是否使用 HTTP 协议? [Y/n] y

└─ 检测到系统存在已备份的 repo 源文件，是否覆盖备份? [Y/n] y

[*] 开始同步软件源...

已加载插件：fastestmirror, langpacks
Repository epel is listed more than once in the configuration
Determining fastest mirrors
base                                                                                                           | 3.6 kB  00:00:00     
http://mirrors.tencentyun.com/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.tencentyun.com; 没有与主机名关联的地址"
正在尝试其它镜像。

 One of the configured repositories failed (EPEL for redhat/centos 7 - x86_64),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled
            yum --disablerepo=epel ...

     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:

            yum-config-manager --disable epel
        or
            subscription-manager repos --disable=epel

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=epel.skip_if_unavailable=true

failure: repodata/repomd.xml from epel: [Errno 256] No more mirrors to try.
http://mirrors.tencentyun.com/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.tencentyun.com; 没有与主机名关联的地址"

[ERROR] 软件源同步失败

请再次执行脚本并更换软件源后进行尝试，如果仍然同步失败那么可能由以下原因导致
1. 网络问题：例如网络异常、网络间歇式中断、由地区影响的网络因素等
2. 软件源问题：所选镜像站正在维护，或者出现罕见的少数文件同步出错导致软件源同步命令执行后返回错误状态