1.首先查看redhat7系统本身所安装的那些yum软件包
[root@linux ~]# rpm -qa | grep yum
yum-utils-1.1.31-24.el7.noarch
yum-langpacks-0.4.2-3.el7.noarch
yum-metadata-parser-1.1.4-10.el7.x86_64
yum-rhn-plugin-2.0.1-4.el7.noarch
PackageKit-yum-0.8.9-11.el7.x86_64
yum-3.4.3-118.el7.noarch
(随版本更新名字可能会不一样)
2.删除redhat自带的yum包，卸载上面显示的所有yum包：
[root@localhost ~]# rpm -qa|grep yum|xargs rpm -e --nodeps
[root@localhost ~]# rpm -qa |grep yum
或者
rpm -e 包名 --nodeps
3.保证本机电脑能上网，ping一下
4.选择网络源
网易，阿里云都可以
网易：欢迎访问网易开源镜像站
阿里云：阿里巴巴开源镜像站-OPSX镜像站-阿里云开发者社区
5.下载安装包rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-54.el7_8.noarch.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-updateonboot-1.1.31-54.el7_8.noarch.rpm
6.查看下载完成结果
[root@linux ~]# ll
7.安装软件包
[root@linux ~]# rpm -ivh yum-*
若安装失败出现以下
warning: package yum-metadata-parser-1.1.4-10.el7.x86_64 was already added, skipping yum-metadata-parser-1.1.4-10.el7.x86_64
error: Failed dependencies:
rpm >= 0:4.11.3-22 is needed by yum-3.4.3-168.el7.centos.noarch
则还需要下载rpm安装包更新一下版本
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-4.11.3-45.el7.x86_64.rpm
下载之后先安装更新rpm包再安装软件包
8.新建repo配置文件,直接复制粘贴以下内容
[root@linux ~]# vim /etc/yum.repos.d/CentOS-Base.repo
#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 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7\&arch=$basearch\&repo=os
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-$7 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7\&arch=$basearch\&repo=updates
baseurl=http://mirrors.163.com/centos/7/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 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7\&arch=$basearch\&repo=extras
baseurl=http://mirrors.163.com/centos/7/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-$7 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
9.测试安装是否正常
[root@linux ~]# yum -y install 包名
版权声明：本文为CSDN博主「croft12138」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/croft12138/article/details/130532149