By Jermine

文章目录

错误描述：

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

解决步骤:

删除redhat原有的yum

rpm -aq|grep yum|xargs rpm -e --nodeps

下载yum安装文件

到这个网站去下载如下RPM包 ：http://mirrors.163.com/centos/7/os/x86_64/Packages/


wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-158.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-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

进行安装yum

rpm -ivh --force --nodeps python-iniparse-0.4-9.el7.noarch.rpm
rpm -ivh --force --nodeps yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
rpm -ivh --force --nodeps yum-3.4.3-158.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm

_注意:最后两个包必需同时安装，否则会相互依赖 _

设置源

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

清除原有缓存

yum clean all

重建缓存，以提高搜索安装软件的速度

yum makecache

如果有提示错误，运行下面的命令：[Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found" sed -i 's/\$releasever/7/' CentOS-Base.repo 备注：把文件里的$releasever替换为7 最后：重新生成缓存，数字不为0，就OK了：

yum clean all
yum makecache

更新系统

yum update