Linux solves this system is not registered with RHN Problem

This system is not registered with RHN solution appears in Yum update under RHEL

Let's talk about how to use centos Yum software to upgrade an unregistered RHEL system:

First, run rpm-Qa | grep Yum to view the yum service-related packages.

# Rpm-Qa | grep yum

Yum-security-1.1.16-13.el5_4.1

Yum-3.2.22-33.el5

Yum-updatesd-0.9-2.el5

Yum-metadata-parser-1.1.2-3.el5

# Rpm-Qa | grep Yum | xargs rpm-e -- nodeps

Forcibly Delete these packages

Download the RPM package related to centos yum

WgetHttp://centos.ustc.edu.cn/centos/5/ OS /x86_64/CentOS/yum-3.2.22-39.el5.centos.noarch.rpm

WgetHttp://centos.ustc.edu.cn/centos/5/ OS /x86_64/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm

WgetHttp://centos.ustc.edu.cn/centos/5/ OS /x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm

# Rpm-IVH Yum -*

Warning: yum-3.2.22-39.el5.centos.noarch.rpm: Header V3 DSA Signature: nokey, key ID e8562897

Preparing... ######################################## ### [100%]

1: yum-metadata-parser ################################### ####### [1, 33%]

2: yum-fastestmirror ##################################### ###### [67%]

3: yum ####################################### #### [100%]

Oh, after the installation is complete, go to the yum directory of the system.

# Cd/etc/yum. Repos. d/

# Mv rhel-debuginfo.repo rhel-debuginfo.repo.bakup

# Mv rhel-source.repo rhel-source.repo.bakup

# Wget linuxtone.org/soft/lemp/centos-base.repo ">Http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo
(Download the centos repo package)

# Yum makecache

After the yum library is updated, you can install the software in yum.