Redhat 7.5更新yum元
redhat 7.5 更新centos yum源
我的环境是win10+Redat 7.5双系统 由于是自己在网上找的镜像用U盘装的,所以是没有注册的红帽系统。所以这里用centos系统的yum源
安装步骤(必须有网)
1. 查看系统自带的yum源并删除
1.rpm -qa | grep yum ##显示系统现有的yum源
2.rpm -qa | grep yum | xargs rpm -e --nodeps ##删除所有的yum源
2. 去网络源下载rpm包
阿里云网络源地址:https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/
网易163网络源地址:http://mirrors.163.com/
CentOS网络源地址:http://centos.ustc.edu.cn/centos/
这里我选择去阿里云下载并找到下面5个yum源
- yum-3.4.3-158.el7.centos.noarch.rpm
- yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
- yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
- yum-updateonboot-1.1.31-45.el7.noarch.rpm
- yum-utils-1.1.31-45.el7.noarch.rpm
3.安装下载的yum源(找到文件位置然后open in Terminal)
1. rpm -ivh yum-* ##安装最新的yum源
2. rpm -qa | grep yum ##查看yum源是否安装成功
4.新建一个 .repo 文件
[root@localhost Downloads]# vim /etc/yum.repos.d/CentOS-Base.repo
[base]
name=CentOS-$7 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=KaTeX parse error: Expected 'EOF', got '&' at position 2: 7&̲arch=basearch&repo=os
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7[updates]
name=CentOS-$7 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=KaTeX parse error: Expected 'EOF', got '&' at position 2: 7&̲arch=basearch&repo=updates
baseurl=http://mirrors.163.com/centos/7/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that may be useful
[extras]
name=CentOS-$7 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=KaTeX parse error: Expected 'EOF', got '&' at position 2: 7&̲arch=basearch&repo=extras
baseurl=http://mirrors.163.com/centos/7/extras/$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- basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
写入上面的内容
5.验证是否安装成功
新系统没有gcc 我们可以通过安装gcc来验证
yum -y install gcc
yum -y install gcc-c++