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  • Redhat7 CentOS7安装阿里云的yum源

    先说CentOS的

    1、备份

    [root@harry ~]# cd /etc/yum.repos.d/
    [root@harry yum.repos.d]# mkdir repo_bak [root@bogon yum.repos.d]# mv *.repo repo_bak/ [root@bogon yum.repos.d]# ls repo_bak

    2、下载新的CentOS-Base.repo 到/etc/yum.repos.d/[root@harry

    # wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

    [root@ yum.repos.d]# ls
    CentOS-Base.repo repo_bak

    3、之后运行yum clean all 清除缓存,运行 yum makecache 生成新的缓存

    yum clean all
    yum makecache

    安装EPEL(Extra Packages for Enterprise Linux )源

    4、安装EPEL源

    [root@ yum.repos.d]# yum list | grep epel-release
    epel-release.noarch                         7-9                        extras   
    [root@bogon yum.repos.d]# yum install -y epel-release
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirrors.aliyun.com
     * extras: mirrors.aliyun.com
     * updates: mirrors.aliyun.com
    Resolving Dependencies
    --> Running transaction check
    ---> Package epel-release.noarch 0:7-9 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    ==================================================================================================================================
     Package                             Arch                          Version                    Repository                     Size
    ==================================================================================================================================
    Installing:
     epel-release                        noarch                        7-9                        extras                         14 k
    
    Transaction Summary
    ==================================================================================================================================
    Install  1 Package
    
    Total download size: 14 k
    Installed size: 24 k
    Downloading packages:
    epel-release-7-9.noarch.rpm                                                                                |  14 kB  00:00:00     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : epel-release-7-9.noarch                                                                                        1/1 
      Verifying  : epel-release-7-9.noarch                                                                                        1/1 
    
    Installed:
      epel-release.noarch 0:7-9                                                                                                       
    
    Complete!
    [root@harry yum.repos.d]# ls                      #多了epel.repo和epel-testing.repo
    CentOS-Base.repo  epel.repo  epel-testing.repo  repo_bak

    5、再次运行yum clean all 清除缓存,运行 yum makecache 生成新的缓存

    6、查看启用的yum源和所有的yum源

    yum repolist enabled 
     yum repolist all     
     
     
     
    然后说Redhat的

    由于Red Hat Enterprise Linux7的更新包只对注册的用户生效,所以需要自己手动改成Centos的更新包,Centos几乎和和Redhat是一样的,所以无需担心软件包的兼容问题。

    首先查看redhat7系统本身安装的yum软件包 ,redhat本身安装了6个关于yum的软件包,我们需要把它给卸载!

    rpm -qa | grep yum


    卸载这些软件包的指令   

    rpm -qa | grep yum | xargs rpm -e --nodeps #不检查依赖关系,直接卸载


    然后重新安装centos的yum软件包 ,把软件包放到统一的文件夹里,然后安装,安装完后可以看到centos安装包已经安装好。这里我看其他很多人的教程给的centos的yum的安装包的链接都是不可用了,后来我自己到国外的网站找了几个可用的安装包。

    链接: https://pan.baidu.com/s/10IrBjM5j_TJT0Qc2aW64Cg   提取码: i4pe

    rpm -ivh * # 安装该目录下所有rpm包
    rpm -qa | grep yum # 查询是否安装好


    安装完centos的yum软件包后,就可以去修改 /etc/yum.repos.d/ 下的文件了,这里和配置本地yum源修改一样

    [base]
    name= yum repo
    baseurl=http://mirrors.aliyun.com/centos/7/os/$basearch/
    enabled=1
    gpgcheck=0
    配置完保存退出,清除yum缓存,查看yum中的包有多少,这里可以看到有11056个,比本地yum源的四千多个多了不少!

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  • 原文地址:https://www.cnblogs.com/fusheng11711/p/10967292.html
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