设置centos5 yum源

1.修改/etc/yum.repos.d/CentOS-Base.repo为:

[base]
name=CentOS-5 - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever5&arch=$basearch&
repo=os
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
baseurl=http://ftp.sjtu.edu.cn/centos/5.0/os/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#released updates
[update]
name=CentOS-5 - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=updates
baseurl=http://ftp.sjtu.edu.cn/centos/5.0/updates/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#packages used/produced in the build but not released
[addons]
name=CentOS-5 - Addons
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=addons

baseurl=http://ftp.sjtu.edu.cn/centos/5.0/addons/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that may be useful
[extras]
name=CentOS-5 - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=extras

baseurl=http://ftp.sjtu.edu.cn/centos/5.0/extras/$basearch/
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-5 - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=centosplus
baseurl=http://ftp.sjtu.edu.cn/centos/5.0/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5

#contrib - packages by Centos Users
[contrib]
name=CentOS-5 - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=4&arch=$basearch&repo=contrib
baseurl=http://ftp.sjtu.edu.cn/centos/5.0/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos5






64位:
rpm --import http://ftp.sjtu.edu.cn/centos/5.0/os/x86_64/RPM-GPG-KEY-CentOS-5

32位:
rpm --import http://ftp.sjtu.edu.cn/centos/5.0/os/i386/RPM-GPG-KEY-CentOS-5

3.执行
yum update


第三方软件仓库，这里推荐的是 Dag Wieers 库（现在叫 RPMForge 了），安装方法如下：
到安装库的网页http://dag.wieers.com/rpm/packages/rpmforge-release/，找到合适的软件包，事实上很简单，我们是centos5.0，由于是和红帽子企业版5.0同样的源编译出来的，那么要的就是rhel5.0的就可以，备选的就只有以下两个

rpmforge-release-0.3.6-1.el5.rf.i386.rpm Fri 09 Mar 2007 16 kB Red Hat EL 5 - i386
rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm Fri 09 Mar 2007 16 kB Red Hat EL 5 - x86_64


我的是32位的系统，我就选择上面那个地址下载，如果是64位的，选下面那个，呵呵。

[root@localhost src]# wget http://dag.wieers.com/rpm/packages/rpmforge-release/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
[root@localhost src]# rpm -ivh rpmforge-release-0.3.6-1.el5.rf.i386.rpm


后面没有其他提示，那差不多好了。我们就可以安装我们的memcache相关的模块了.