centos5.5的yum源配置

本文用的是163的YUM源，如果想用其他源，可以换成相应的源，原理相同。

网易源 mirrors.163.com

首先，备份/etc/yum.repos.d/CentOS-Base.repo
#cp /etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo.bak
#vim CentOS-Base.repo 
清空内容，并加入以下内容：
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the clientand the
# update status of each mirror to pick mirrors that are updated toand
# geographically close to the client.  You shoulduse this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you cantry the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates 
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existingpackages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#####################################################################
如果此时用如下命令更新包时报错： 

#yum update glibc\*
addons                                                                                                                                                                  |  951B    00:00     
addons/primary                                                                                                                                                          |  202B    00:00     
base                                                                                                                                                                    | 1.1kB    00:00     
base/primary                                                                                                                                                            | 954kB    00:03     
base                                                                                                                                                                                 2683/2683
file:///mnt/repodata/repomd.xml:[Errno 5] OSError: [Errno 2] 没有那个文件或目录:'/mnt/repodata/repomd.xml'
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) forrepository: c5-media. Please verify its path and tryagain
如果报错这个，则需要修改 
#vim CentOS-Media.repo
清空之后，加入以下内容：

# CentOS-Media.repo
#
# This repo is used to mount the default locations for a CDROM /DVD on
#  CentOS-5.  You can use thisrepo and yum to install items directly off the
#  DVD ISO that we release.
#
# To use this repo, put in your DVD and use it with the other repostoo:
#  yum --enablerepo=c5-media [command]
#  
# or for ONLY the media repo, do this:
#
#  yum --disablerepo=\* --enablerepo=c5-media[command]
 
[c5-media]
name=CentOS-$releasever - Media
baseurl=file:///media/CentOS/
        file:///media/cdrom/
        file:///media/cdrecorder/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#################################################
最后运行如下命令：
# yum clean all
# yum update glibc\*
# yum update yum\* rpm\* python\*
# yum clean all
# yum update
# reboot
 

即可完成yum的更新配置。

  
4. 运行，测试
　＃yum update

5.#yum clean all

－－－－－－－－－－－－－－－－－－－－－－－－－昏割线－－－－－－－－－－－－－－－－－－－－－－－－－－－－
＃＃＃第二种方法，小青做的，默默的感谢小青同学对我学习上的帮助

修改源配置文件＃vim /etc/yum.repos.d/rhel-debuginfo.repo
＃＃＃
[rhel-debuginfo]
name=Red Hat Enterprise Linux $releasever - $basearch -Debug
baseurl=ftp://ftp.redhat.com/pub/redhat/linux/enterprise/$releasever/en/os/$basearch/Debuginfo/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[rhel-debuginfo-beta]
name=Red Hat Enterprise Linux $releasever Beta - $basearch -Debug
baseurl=ftp://ftp.redhat.com/pub/redhat/linux/beta/$releasever/en/os/$basearch/Debuginfo/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta,file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

[base]
name=Red Hat Enterprise Linux $releasever -Base
baseurl=http://ftp.twaren.net/Linux/CentOS/5/os/$basearch/
gpgcheck=1
gpgkey=http://ftp.twaren.net/Linux/CentOS/RPM-GPG-KEY-CentOS-5
[update]
name=Red Hat Enterprise Linux $releasever -Updates
baseurl=http://ftp.twaren.net/Linux/CentOS/5/updates/$basearch/
gpgcheck=1
gpgkey=http://ftp.twaren.net/Linux/CentOS/RPM-GPG-KEY-CentOS-5
[extras]
name=Red Hat Enterprise Linux $releasever -Extras
baseurl=http://ftp.twaren.net/Linux/CentOS/5/extras/$basearch/
gpgcheck=1
gpgkey=http://ftp.twaren.net/Linux/CentOS/RPM-GPG-KEY-CentOS-5
[addons]
name=Red Hat Enterprise Linux $releasever -Addons
baseurl=http://ftp.twaren.net/Linux/CentOS/5/addons/$basearch/
gpgcheck=1 
gpgkey=http://ftp.twaren.net/Linux/CentOS/RPM-GPG-KEY-CentOS-5
＃＃＃

然后
#yum update
#yum clean all