Linux:将rhel yum 切换到centos yum

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Red Hat Enterprise Linux Server(RHEL) yum安装软件时This system is not registered with RHN. RHN support will be disabled.

Red Hat Enterprise Linux Server(RHEL) 的yum服务是付费的,因为没有付费,所以无法使用yum安装软件,如RHEL想安装LNMP必须要先按此教程设置好yum,并可以正常使用后才可以安装LNMP一键安装包,会提示如下错误:This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. 或如下错误信息:This system is not registered with RHN. RHN support will be disabled.

解决方法:
执行:rpm -qa|grep yum|xargs rpm -e --nodeps  将yum卸载掉
cat /etc/issue && uname -a 看一下系统版本号和系统位数

到 http://mirrors.kernel.org/centos/ 或 http://mirrors.163.com/centos/ 找对应系统版本号

如果系统是5.* 64位,则打开http://mirrors.kernel.org/centos/5/os/x86_64/CentOS/
如果系统是5.* 32位,则打开http://mirrors.kernel.org/centos/5/os/i386/CentOS/
如果系统是6.* 32位:http://mirrors.kernel.org/centos/6/os/i386/Packages/
如果系统是6.* 32位:http://mirrors.kernel.org/centos/6/os/i386/Packages/

找到yum 、yum-fastestmirror、yum-metadata-parser 这3个软件包的地址,然后执行:以下命令下载地址可能会无法下载,到上面网址找对应的下载文件!下面是以RHEL 5.* 64位 为例,下面下载地址里的链接可能会变,自行更换下载地址
wget http://mirrors.kernel.org/centos/5/os/x86_64/CentOS/yum-3.2.22-39.el5.centos.noarch.rpm
wget http://mirrors.kernel.org/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
wget http://mirrors.kernel.org/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm

 

下载下这3个软件包,再执行:
rpm -ivh yum-*
再执行:(如果是6.*的版本,则将下面内容里面的5改成6,同时将下面文件里的$releasever全部替换为版本号5或6后再执行。)

 

cat >/etc/yum.repos.d/CentOS-Base.repo<<eof
[base]
name=CentOS-$releasever - Base
baseurl=http://mirrors.kernel.org/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates 
[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.kernel.org/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
baseurl=http://mirrors.kernel.org/centos/$releasever/addons/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.kernel.org/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.kernel.org/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
baseurl=http://mirrors.kernel.org/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5
eof

Note:

1) 如果是 7,没有addons,可以将[addons]区域的配置移除。

2) gpgkey 的版本号要与下载的版本是一致的。

3)使用上述脚本时,要将变量$releaserver 代表的是系统版本号,$basearch 代表的是 arch 版本(例如x86_64)

 

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