redhat6.5更换为contos 的yum源

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原文地址:http://www.iyunv.com/thread-41279-1-1.html

redhat默认自带的yum源需要注册,才能更新,报错:
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
可替换为centos对应的源。 操作如下:

1.检查是否安装yum包。查看RHEL是否安装了yum,若是安装了,那么又有哪些yum包:
rpm -qa |grep yum

2 删除redhat自带的yum包
rpm -qa|grep yum|xargs rpm -e –nodeps(不检查依赖,直接删除rpm包)
rpm -qa |grep yum (查询确认)

这里写图片描述

3.下载新的yum包。使用Centos6.5的yum包

1) 查看版本号和系统类别:

    cat /etc/redhat-release    arch

2)根据上一步,找到对应的yum包,然后下载。

我的服务器对应的为:
wget http://mirrors.163.com/centos/6/ … 2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/ … 6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/ … 0-30.el6.noarch.rpm

也可以去linux rpm 下载的网站:
http://vault.centos.org/6.3/os/x86_64/Packages/
http://rpm.pbone.net/index.php3

3)执行:

    rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm yum-3.2.29-60.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm    如果这一步报错,大底如下:        libc.so.6 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libc.so.6(GLIBC_2.0) is needed by yum-metadata-parser-1.1.2-16.el6.i686        libc.so.6(GLIBC_2.1.3) is needed by yum-metadata-parser-1.1.2-16.el6.i686        libglib-2.0.so.0 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libpthread.so.0 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libpython2.6.so.1.0 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libsqlite3.so.0 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libxml2.so.2 is needed by yum-metadata-parser-1.1.2-16.el6.i686        libxml2.so.2(LIBXML2_2.4.30) is needed by yum-metadata-parser-1.1.2-16.el6.i686

则说明下载安装的yum包与系统版本不匹配,需要重新下载安装。另外,163镜像站点对于6.0~6.5的资源均合并在6的目录下。

4)更换yum源,将原有源删除或备份到别的目下下:

    cd /etc/yum.repos.d/    wget  http://mirrors.163.com/.help/CentOS6-Base-163.repo    vi CentOS6-Base-163.repo    编辑文件,把文件里面的$releasever全部替换为版本号:6(注意,不是6.5!)最后保存!

vi 编辑器的替换命令
%s/releasever/6/g 替换每一行中所有 releasever 为 6

4.清除原有缓存,重建缓存:

clean allyum makecache

5.更新系统:

yum update
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