【linux】centos yum 换源

一、问题描述

CentOS 7 更换yum源后,无法正常使用,报错信息如下:

复制代码
[root@host-10-43-1-3 ~]# yum install tmux
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Loading mirror speeds from cached hostfile
epel/x86_64/metalink                                                                                   |  15 kB  00:00:00     
 * base: mirrors.aliyun.com
 * epel: mirrors.tuna.tsinghua.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
base                                                                                                   | 3.6 kB  00:00:00     
https://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: [Errno 12] Timeout on https://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: (28, 'Connection timed out after 30001 milliseconds')
Trying other mirror.
https://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: [Errno 12] Timeout on https://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: (28, 'Connection timed out after 30001 milliseconds')
Trying other mirror.

二、解决方案

1、删除yum配置中的原先依赖库

复制代码
sudo rm -rf /etc/yum.repos.d/*

2、下载163源

复制代码
sudo wget -qO- http://mirrors.163.com/centos/7.9.2009/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
sudo wget -qO- http://mirrors.163.com/centos/7.9.2009/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
sudo wget -qO- http://mirrors.163.com/centos/7.9.2009/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm
sudo wget -qO- http://mirrors.163.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

3、依次安装

复制代码
rpm -ivh python-iniparse-0.4-9.el7.noarch.rpm
rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
rpm -ivh yum-3.4.3-168.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

4、进入配置文件夹

复制代码
cd /etc/yum.repos.d

5、 下载最新依赖

复制代码
sudo wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

6、修改配置项

复制代码
vim CentOS7-Base-163.repo

7、更换 $releasever 为centos版本号

我这里的centos版本号是7.9.2009

复制代码
# 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-7.9.2009 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=7.9.2009&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/7.9.2009/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-7.9.2009 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=7.9.2009&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/7.9.2009/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-7.9.2009 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=7.9.2009&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/7.9.2009/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-7.9.2009 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/7.9.2009/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

8、 清理yum缓存的各个部分

复制代码
yum clean all

9、重新生成yum新缓存,完成换源

复制代码
yum makecache

Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
base                                   | 3.6 kB     00:00     
extras                                 | 2.9 kB     00:00     
updates                                | 2.9 kB     00:00     
(1/10): base/7/x86_64/group_gz           | 153 kB   00:01     
(2/10): base/7/x86_64/primary_db         | 6.1 MB   01:24     
(3/10): extras/7/x86_64/filelists_db     | 305 kB   00:03     
(4/10): extras/7/x86_64/other_db         | 154 kB   00:00     
(5/10): extras/7/x86_64/primary_db       | 253 kB   00:04     
(6/10): base/7/x86_64/filelists_db       | 7.2 MB   01:41     
(7/10): base/7/x86_64/other_db           | 2.6 MB   00:27     
(8/10): updates/7/x86_64/filelists_db    |  15 MB   03:24     
(9/10): updates/7/x86_64/other_db        | 1.6 MB   00:15     
(10/10): updates/7/x86_64/primary_db     |  27 MB   06:03     
Metadata Cache Created

10、尝试下载新的工具包

复制代码
yum install tmux

Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package tmux.x86_64 0:1.8-4.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==============================================================
 Package     Arch          Version          Repository   Size
==============================================================
Installing:
 tmux        x86_64        1.8-4.el7        base        243 k

Transaction Summary
==============================================================
Install  1 Package

Total download size: 243 k
Installed size: 558 k
Is this ok [y/d/N]: y
Downloading packages:
tmux-1.8-4.el7.x86_64.rpm                | 243 kB   00:03     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : tmux-1.8-4.el7.x86_64                      1/1 
  Verifying  : tmux-1.8-4.el7.x86_64                      1/1 

Installed:
  tmux.x86_64 0:1.8-4.el7                                     

Complete!

搞定!

附加:

centos7 卸载docker

复制代码
yum remove docker docker-common docker-selinux docker-engine

centos7 安装docker

复制代码
yum install docker
相关推荐
行云流水剑3 分钟前
【学习记录】使用 Kali Linux 与 Hashcat 进行 WiFi 安全分析:合法的安全测试指南
linux·学习·安全
xuanwojiuxin37 分钟前
linux panic-propagation
linux·运维·服务器
achene_ql3 小时前
select、poll、epoll 与 Reactor 模式
linux·服务器·网络·c++
藥瓿亭3 小时前
K8S认证|CKS题库+答案| 9. 网络策略 NetworkPolicy
linux·运维·docker·云原生·容器·kubernetes·cks
千千寰宇3 小时前
[数据传输/网络传输/序列化/计算机组成原理] 字节序/大小端
linux·计算机组成原理/硬件/半导体
LFloyue3 小时前
Linux离线(zip方式)安装docker
linux·docker
liuzhenghua663 小时前
Python任务调度模型
java·运维·python
黎相思3 小时前
应用层自定义协议与序列化
运维·服务器·网络
Blue桃之夭夭3 小时前
深入理解Optional:处理空指针异常
linux·windows·microsoft
测试开发Kevin4 小时前
详解Jenkins Pipeline 中git 命令的使用方法
运维·jenkins