【Linux_Cent OS】yum错误:failure: repodata/repomd.xml from local: [Errno 256] No more mirrors to try.

不念不忘少年蓝@ 2024-04-01 09:43 27阅读 0赞

### 问题再现 ###

> 近期在学习`Linux`，发现在学习`yum`时，进行一些必要操作，总会出现该错误。  
> `failure: repodata/repomd.xml from local: [Errno 256] No more mirrors to try. file:///mnt/ios/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/ios/repodata/repomd.xml"`

![问题yum][yum]

### 解决 ###

![问题截图][a5fa9bfc03bf477383cd81e485635ccb.png]

#### 删除老的仓库 ####

> `rm /etc/yum.repos.d/*.*`  
> ![删除老仓库][edda29a26c8c42cf9a80a5b285c28830.png]

#### 卸载`yum`包 ####

[root@centos7-9-2009-zsc yum.repos.d]# rpm -qa yum yum
    yum-3.4.3-168.el7.centos.noarch
    [root@centos7-9-2009-zsc yum.repos.d]# rpm -qa yum yum-3.4.3-168.el7.centos.noarch
    yum-3.4.3-168.el7.centos.noarch
    [root@centos7-9-2009-zsc yum.repos.d]# rpm -qa | grep yum | xargs rpm -e --nodeps
    警告：/etc/yum/pluginconf.d/langpacks.conf 已另存为 /etc/yum/pluginconf.d/langpacks.conf.rpmsave
    [root@centos7-9-2009-zsc yum.repos.d]# rpm -qa yum yum-3.4.3-168.el7.centos.noarch
    [root@centos7-9-2009-zsc yum.repos.d]# rpm -qa | grep yum | xargs rpm -e --nodeps
    rpm：未给出要擦除的软件包
    [root@centos7-9-2009-zsc yum.repos.d]# rpm -qa yum
    [root@centos7-9-2009-zsc yum.repos.d]# ls
    [root@centos7-9-2009-zsc yum.repos.d]#

> `rpm -qa yum`没有提示表明已删除  
> ![操作][87058c4e1be446a7b4f4b61cac644e36.png]

#### 下载rpm包 ####

可下载最新的。

>     [root@centos7-9-2009-zsc ~]# ls anaconda-ks.cfg       myresult 
>     yum-3.4.3-168.el7.centos.noarch.rpm         
>     yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm  模板  图片  下载  桌面
>     initial-setup-ks.cfg  print    
>     yum-metadata-parser-1.1.4-10.el7.x86_64.rpm  公共                       
>     视频  文档  音乐

![在这里插入图片描述][f7f6000a424c4cb2810f9b0bb768ae9c.png]

##### 下载地址 #####

> [下载地址][Link 1]

##### 下载内容 #####

> 下载三项：![在这里插入图片描述][4b6c394c11ab4796becccb6559112157.png]

#### 并将其传至centOS ####

![在这里插入图片描述][f7f6000a424c4cb2810f9b0bb768ae9c.png]

#### 接下来，进行安装rpm ####

> `rpm -ivh yum-*`  
> ![install][]

#### 进行检查（养成好习惯） ####

![在这里插入图片描述][7d98c86bf28d4dc3a22ac77f8f5455a5.png]

##### 检查方式二 #####

![在这里插入图片描述][1aa57f7fe2194a259b65e07cf65931cb.png]

#### 导入证书 ####

[root@centos7-9-2009-zsc ~]# rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7

![在这里插入图片描述][db877e9947ad4e6facef6c9e1583abbe.png]

#### 配置阿里源 ####

![在这里插入图片描述][a711385f80de474abd604345a8a662c2.png]

[root@centos7-9-2009-zsc ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
    --2022-10-23 10:16:39--  http://mirrors.aliyun.com/repo/Centos-7.repo
    正在解析主机 mirrors.aliyun.com (mirrors.aliyun.com)... 27.128.147.239, 27.128.147.234, 27.128.147.237, ...
    正在连接 mirrors.aliyun.com (mirrors.aliyun.com)|27.128.147.239|:80... 已连接。
    已发出 HTTP 请求，正在等待回应... 200 OK
    长度：2523 (2.5K) [application/octet-stream]
    正在保存至: “/etc/yum.repos.d/CentOS-Base.repo”
    
    100%[===============================================================================================================================================>] 2,523       --.-K/s 用时 0s      
    
    2022-10-23 10:16:39 (920 MB/s) - 已保存 “/etc/yum.repos.d/CentOS-Base.repo” [2523/2523])

#### 下一步，进行清缓存 ####

[root@centos7-9-2009-zsc ~]# yum clean all
    已加载插件：fastestmirror
    正在清理软件源： base extras updates
    Cleaning up list of fastest mirrors

#### 最后生成/制作出新的缓存 ####

[root@centos7-9-2009-zsc ~]# yum makecache
    已加载插件：fastestmirror
    Determining fastest mirrors
     * base: mirrors.aliyun.com
     * extras: mirrors.aliyun.com
     * updates: mirrors.aliyun.com
    http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to mirrors.aliyuncs.com:80; 拒绝连接"
    正在尝试其它镜像。
    http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; 未知的错误"
    正在尝试其它镜像。
    base                                                                                                                                                              | 3.6 kB  00:00:00     
    extras                                                                                                                                                            | 2.9 kB  00:00:00     
    updates                                                                                                                                                           | 2.9 kB  00:00:00     
    (1/10): base/7/x86_64/group_gz                                                                                                                                    | 153 kB  00:00:00     
    (2/10): base/7/x86_64/primary_db                                                                                                                                  | 6.1 MB  00:00:06     
    (3/10): extras/7/x86_64/primary_db                                                                                                                                | 249 kB  00:00:00     
    (4/10): extras/7/x86_64/filelists_db                                                                                                                              | 276 kB  00:00:00     
    (5/10): extras/7/x86_64/other_db                                                                                                                                  | 149 kB  00:00:00     
    (6/10): base/7/x86_64/other_db                                                                                                                                    | 2.6 MB  00:00:02     
    (7/10): updates/7/x86_64/filelists_db                                                                                                                             | 9.6 MB  00:00:10     
    (8/10): updates/7/x86_64/other_db                                                                                                                                 | 1.2 MB  00:00:01     
    (9/10): base/7/x86_64/filelists_db                                                                                                                                | 7.2 MB  00:00:23     
    (10/10): updates/7/x86_64/primary_db                                                                                                                              |  17 MB  00:00:18     
    元数据缓存已建立

![在这里插入图片描述][046f53a83acf4486a887b99db6921c6b.png]

### 以上步骤操作完成后，我们进行前后对比 ###

#### 就不会再报错啦~~~ ####

##### 重新安装后 #####

![后的效果图][ccd905daf73640278ed6cbd60d332f75.png]

##### 之前报错~~~ #####

![前][d9dc40c3ab564321b4aa3b4c06c533c7.png]

##### 对比 #####

###### 前 ######

[root@centos7-9-2009-zsc ~]# yum check-update -y dialog
    已加载插件：fastestmirror, langpacks
    Loading mirror speeds from cached hostfile
    file:///mnt/ios/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/ios/repodata/repomd.xml"
    正在尝试其它镜像。
    
    
     One of the configured repositories failed (local),
     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=local ...
    
         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 local
            or
                subscription-manager repos --disable=local
    
         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=local.skip_if_unavailable=true
    
    failure: repodata/repomd.xml from local: [Errno 256] No more mirrors to try.
    file:///mnt/ios/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/ios/repodata/repomd.xml"

`failure: repodata/repomd.xml from local: [Errno 256] No more mirrors to try. file:///mnt/ios/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/ios/repodata/repomd.xml"`

###### 后 ######

[root@centos7-9-2009-zsc ~]# yum check-update -y dialog
    已加载插件：fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirrors.aliyun.com
     * extras: mirrors.aliyun.com
     * updates: mirrors.aliyun.com
    [root@centos7-9-2009-zsc ~]#

> `已加载插件：fastestmirror Loading mirror speeds from cached hostfile`  
> `*base: mirrors.aliyun.com`  
> `*extras: mirrors.aliyun.com`  
> `*updates: mirrors.aliyun.com`

### 这次错误学习纠正就到这里啦~ ###

#### 我们下次再见 **最后别忘记点赞关注＋收藏呀~~** ####

[yum]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/b71bafdb191e4858bfe2957418bf8f0c.png
[a5fa9bfc03bf477383cd81e485635ccb.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/c9803bb16752466aad55ec9087acb1f0.png
[edda29a26c8c42cf9a80a5b285c28830.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/1b567eea24ef467bbc30a2cfdf0533bd.png
[87058c4e1be446a7b4f4b61cac644e36.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/07a94fcc8c0c4a42afb3fa69d9b79116.png
[f7f6000a424c4cb2810f9b0bb768ae9c.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/9a0f6d1619f44f18920c0b435618e619.png
[Link 1]: http://mirrors.163.com/centos/7/os/x86_64/Packages/
[4b6c394c11ab4796becccb6559112157.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/b4e72048795b462fa9a18b8a153ee389.png
[install]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/3f4156d3689c49cb8ddfc90c36998a77.png
[7d98c86bf28d4dc3a22ac77f8f5455a5.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/35fa35bb84324e79b0eddb0a4712a634.png
[1aa57f7fe2194a259b65e07cf65931cb.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/3863d1b897104c0cbda27674d7a66e73.png
[db877e9947ad4e6facef6c9e1583abbe.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/d6ca772438dd4728b76d6993104d82a5.png
[a711385f80de474abd604345a8a662c2.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/6a905daaf43e4f69bbb37704e1bedf02.png
[046f53a83acf4486a887b99db6921c6b.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/455d54acb8d54f6ea4a1af6fc53d454a.png
[ccd905daf73640278ed6cbd60d332f75.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/dd3e277e13e84636bc76854dee75203d.png
[d9dc40c3ab564321b4aa3b4c06c533c7.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/01/7978e549f9bd49468a1d228ce1be81e4.png