This system is not registered with RHN

[root@ing sdc]# yum install sysstat
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
No package sysstat available.
Nothing to do

红帽中出现This system is not registered with RHN这个的原因是因为红帽中没有注册RHN。

解决办法:(假定你已安装yum,且网络畅通)更改yum的源,即更换/etc/yum.repos.d /rhel-debuginfo.repo 这个文件。

进入/etc/yum.repos.d/目录,终端中输入wget http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo

即可在此目录下得到CentOS- Base.repo文件,这是centos的源文件,只需将其重命名为rhel-debuginfo.repo即可,以前的文件做个备份。

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