配置RedHat 6系统YUM网易源
配置RedHat 6系统YUM网易源卸载redhat自带yum，然后下载centos的yum，安装后修改配置文件
1. 首先到http://mirrors.163.com/centos下载软件包
x86_64 地址：http://mirrors.163.com/centos/6/os/x86_64/Packages/
必要下载的软件包有（以64位系统为例）：
a python-iniparse-0.3.1-2.1.el6.noarch.rpm
b yum-3.2.29-40.el6.centos.noarch.rpm
c yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
d yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
#wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
# wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
# wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-40.el6.centos.noarch.rpm
# wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
2. 卸载RedHat自带的yum
# rpm -qa | grep yum| xargs rpm -e --nodeps
注：a、xargs是一条Unix和类Unix操作系统的常用命令。它的作用是将参数列表转换成小块分段传递给其他命令，以避免参数列表过长的问题
b、--nodeps强制卸载,不管依赖性
3. 安装下载的centos的yum包：
yum-3.2.29和yum-plugin-fastestmirro需要一起安装，否则会出现依赖性错误。
# rpm -ivhpython-iniparse-0.3.1-2.1.el6.noarch.rpm
warning:python-iniparse-0.3.1-2.1.el6.noarch.rpm: Header V3 RSA/SHA256 Signature, keyID c105b9de: NOKEY
Preparing... ###########################################
packagepython-iniparse-0.3.1-2.1.el6.noarch is already installed
# rpm -ivhyum-metadata-parser-1.1.2-16.el6.x86_64.rpm
warning:yum-metadata-parser-1.1.2-16.el6.x86_64.rpm: Header V3 RSA/SHA1 Signature, keyID c105b9de: NOKEY
Preparing... ###########################################
1:yum-metadata-parser ###########################################
# rpm -ivhyum-3.2.29-40.el6.centos.noarch.rpmyum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
warning:yum-3.2.29-40.el6.centos.noarch.rpm: Header V3 RSA/SHA1 Signature, key IDc105b9de: NOKEY
Preparing... ###########################################
1:yum-plugin-fastestmirro###########################################
2:yum ###########################################
#
4. 到http://mirrors.163.com的 centos帮助文档中下载CentOS6-Base-163.repo文件，存放到/etc/yum.repo.d中
# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
# cpCentOS6-Base-163.repo /etc/yum.repos.d/
# cd/etc/yum.repos.d/
# ls
CentOS6-Base-163.reporhel-source.repo
#
5. 编辑CentOS6-Base-163.repo文件，将其中的$releasever更改为centos的版本号
# vimCentOS6-Base-163.repo (把$releasever改为6)
#CentOS-Base.repo
#
# The mirrorsystem uses the connecting IP address of the client and the
# update statusof each mirror to pick mirrors that are updated to and
# geographicallyclose to the client.You should use thisfor CentOS updates
# unless you aremanually picking other mirrors.
#
# If themirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl=line instead.
#
#
name=CentOS-6 - Base- 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
name=CentOS-6 -Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additionalpackages that may be useful
name=CentOS-6 -Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additionalpackages that extend functionality of existing packages
name=CentOS-6 - Plus- 163.com
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib -packages by Centos Users
name=CentOS-6 -Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
在vi下:
:setnu
:1,52s/$releasever/6/gi (1到52行里面的$releasever替换成6，gi全局)
6. yum clean all 清除原有缓存
# yumclean all
Loaded plugins:fastestmirror, product-id, subscription-manager
This system isnot registered to Red Hat Subscription Management. You can usesubscription-manager to register.
Cleaning repos:base extras updates
Cleaning upEverything
#
7. yum makecache获取yum列表
出现下面提示，表示yum更改完成：
MetadataCache Created
# yummakecache
Loaded plugins:fastestmirror, product-id, subscription-manager
This system isnot registered to Red Hat Subscription Management. You can usesubscription-manager to register.
Determiningfastest mirrors
base | 3.7 kB 00:00
base/group_gz |220 kB 00:00
base/filelists_db | 5.9 MB 00:30
base/primary_db | 4.4 MB 00:11
base/other_db | 2.8 MB 00:05
extras | 3.3 kB 00:00
extras/filelists_db |11 kB 00:00
extras/prestodelta |904 B 00:00
extras/primary_db |19 kB 00:00
extras/other_db |22 kB 00:00
updates | 3.4 kB 00:00
updates/filelists_db | 3.0 MB 00:06
updates/prestodelta | 494 kB 00:02
updates/primary_db | 5.3 MB 00:10
updates/other_db | 46 MB 02:20
Metadata CacheCreated
#
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