1.卸载redhat自带的yum组件
[root@localhost ~]# rpm -qa|grep yum|xargs rpm -e --nodeps
2.查看系统版本
[root@localhost ~]# lsb_release -a
显示为：Red Hat Enterprise Linux Server release 6.1 于是找对应的CentOS6.1 但是在http://mirrors.ustc.edu.cn/centos/6.0/readme看到
This directory (and version of CentOS) is depreciated. For normal users,
you should use /6/ and not /6.0/ in your path. Please see this FAQ
concerning the CentOS release scheme:
http://www.centos.org/modules/smartfaq/faq.php?faqid=34
If you know what you are doing, and absolutely want to remain at the 6.0
level, go to http://vault.centos.org/ for packages. Please keep in mind that 6.0 no longer gets any updateds
所以选择6版本
3.安装centos的yum包（64位对应于64位安装包）
wgethttp://mirrors.ustc.edu.cn/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
wgethttp://mirrors.ustc.edu.cn/centos/6/os/x86_64/Packages/yum-3.2.27-14.el6.centos.noarch.rpm
wgethttp://mirrors.ustc.edu.cn/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
安装顺序如下：
rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
rpm -ivh yum-metadata-parser-1.1.2-14.1.el6.x86_64.rpm
rpm -ivh yum-3.2.27-14.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm
注意最后两个包必需同时安装，否则会相互依赖，我在这里纠结了很久
vi/etc/yum.repos.d/CentOS-Base.repo
#mv /etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo.bak
然后把/etc/yum.repos.d/CentOS-Base.repo文件改为
| # CentOS-Base.repo # # This file uses a new mirrorlist system developed by Lance Davis for CentOS. # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # #
[base] name=CentOS-$releasever - Base baseurl=http://mirrors.ustc.edu.cn/centos/6/os/$basearch/ gpgcheck=1 gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
#released updates [updates] name=CentOS-$releasever - Updates baseurl=http://mirrors.ustc.edu.cn/centos/6/updates/$basearch/ gpgcheck=1 gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
#packages used/produced in the build but not released #[addons] #name=CentOS-$releasever - Addons #baseurl=http://mirrors.ustc.edu.cn/centos/$releasever/addons/$basearch/ #gpgcheck=1 #gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras baseurl=http://mirrors.ustc.edu.cn/centos/6/extras/$basearch/ gpgcheck=1 gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus baseurl=http://mirrors.ustc.edu.cn/centos/6/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6 |
更改一下源的路径就行了。现在可以更新Centos 6了。
下面是搜狐的：
# CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
baseurl=http://mirrors.sohu.com/centos/6/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.sohu.com/centos/6/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-6
#packages used/produced in the build but not released
#[addons]
#name=CentOS-$releasever - Addons
#baseurl=http://mirrors.sohu.com/centos/$releasever/addons/$basearch/
#gpgcheck=1
#gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.sohu.com/centos/6/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.sohu.com/centos/6/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.sohu.com/centos/RPM-GPG-KEY-CentOS-6
下面是网易163的源：
# CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#packages used/produced in the build but not released
#[addons]
#name=CentOS-$releasever - Addons
#baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
#gpgcheck=1
#gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6
经过测试，教育网内用中科大的源很快。外网用网易的源非常快。
yum clean all
yum makecache
下面的测试
在站glibc.i686遇到很多问题，如下：出现这个问题的原因最后确定是因为我的一个文件搞错了，也就是上面写道CentOS-Base.repo,不过现在全部搞定。
yum install glibc.i686
Loaded plugins: fastestmirror, product-id, refresh-packagekit, subscription-manager
Updating Red Hat repositories.
Loading mirror speeds from cached hostfile
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package glibc.i686 0:2.5-81.el5_8.4 will be installed
--> Processing Dependency: glibc-common = 2.5-81.el5_8.4 for package: glibc-2.5-81.el5_8.4.i686
--> Finished Dependency Resolution
Error: Package: glibc-2.5-81.el5_8.4.i686 (update)
Requires: glibc-common = 2.5-81.el5_8.4
Installed: glibc-common-2.12-1.25.el6.x86_64 (@anaconda-RedHatEnterpriseLinux-201105101844.x86_64/6.1)
glibc-common = 2.12-1.25.el6
Available: glibc-common-2.5-81.x86_64 (base)
glibc-common = 2.5-81
Available: glibc-common-2.5-81.el5_8.1.x86_64 (update)
glibc-common = 2.5-81.el5_8.1
Available: glibc-common-2.5-81.el5_8.2.x86_64 (update)
glibc-common = 2.5-81.el5_8.2
Available: glibc-common-2.5-81.el5_8.4.x86_64 (update)
glibc-common = 2.5-81.el5_8.4
You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
PackageKit-0.5.8-19.el6.x86_64 has missing requires of PackageKit-yum = ('0', '0.5.8', '19.el6')
PackageKit-0.5.8-19.el6.x86_64 has missing requires of PackageKit-yum-plugin = ('0', '0.5.8', '19.el6')
下面就是为了解决这些问题
yum remove 'rhn-check-1.0.0-61.el6.noarch'
yum instal PackageKit-glib
yum install abrt-addon-ccpp
文章转载自http://www.cnblogs.com/zuiyirenjian/archive/2012/07/26/2609227.html