建立自己的Yum源

转自http://kicklinux.com/setup-yum-repos-server/

命令 reposync 可以直接同步yum源

如/etc/yum.repos.d/cloudera-cdh4.repo

合适的目录下 reposync cloudera-cdh4 就ok了

#########更新#################

rhel 5 使用 rhel6 或者 fedora 11 以上版本作为yum 源就会发生如下报错：

[Errno -3] Error performing checksum

原因： rhel 6 中 repomd.xml 文件使用 sha256 作为hash 算法 ，在rhel 5中 默认使用的是sha 作为hash 算法 ，倒是rhel5 读取 rhel 6 yum 源中的repomd.xml 出现问题

解决办法： 将rhel 6 光盘中内容拷贝出来 ，createrepo  -s sha  ./   重新创建repo ，并制定默认算法 sha

##########更新完毕#################

建立自己的yum服务源

为了节省流量，提高效率，我们在机房内部署了自己的yum server。

安装httpd服务。
同步yum源到/var/www/html/linux下的目录

/usr/bin/rsync -avzL --delete--exclude=SRPMS --exclude=i386 --exclude=isos rsync://mirrors.ustc.edu.cn/centos/6/ /var/www/html/linux/centos/x86_64/
/usr/bin/rsync -avzL --delete rsync://mirrors.ustc.edu.cn/fedora-epel/6/x86_64 /var/www/html/linux/centos/epel/

 北京在线源
    rsync://mirrors.yun-idc.com/centos
    rsync://mirrors.yun-idc.com/epel 
   官方提供的所有镜像站http://www.centos.org/download/mirrors/
 

添加自动化任务，每天夜里自动同步

# vi /var/spool/cron/root 

01***/usr/bin/rsync -avzL --delete--exclude=SRPMS --exclude=i386 --exclude=isos rsync://mirrors.ustc.edu.cn/centos/6/ /var/www/html/linux/centos/x86_64/

01***/usr/bin/rsync -avzL --delete rsync://mirrors.ustc.edu.cn/fedora-epel/6/x86_64 /var/www/html/linux/centos/epel/
# service httpd start

在某一台机器上创建和修改以下文件

[root@vm2 yum.repos.d]# more CentOS-Base.repo 

# CentOS-Base.repo## 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--Base#mirrorlist=http://mirrorlist.centos.org/?release=&arch=&repo=os
baseurl=http://172.16.1.101/linux/centos/x86_64/os/x86_64/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6#released updates[updates]
name=CentOS--Updates#mirrorlist=http://mirrorlist.centos.org/?release=&arch=&repo=updates
baseurl=http://172.16.1.101/linux/centos/x86_64/updates/x86_64/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6#additional packages that may be useful[extras]
name=CentOS--Extras#mirrorlist=http://mirrorlist.centos.org/?release=&arch=&repo=extras
baseurl=http://172.16.1.101/linux/centos/x86_64/extras/x86_64/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6#additional packages that extend functionality of existing packages[centosplus]
name=CentOS--Plus#mirrorlist=http://mirrorlist.centos.org/?release=&arch=&repo=centosplus
baseurl=http://172.16.1.101/linux/centos/x86_64/centosplus/x86_64/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6#contrib - packages by Centos Users[contrib]
name=CentOS--Contrib#mirrorlist=http://mirrorlist.centos.org/?release=&arch=&repo=contrib
baseurl=http://172.16.1.101/linux/centos/x86_64/contrib/x86_64/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6[root@vm2 yum.repos.d]# more epel.repo [epel]
name=ExtraPackagesforEnterpriseLinux6- $basearch
baseurl=http://172.16.1.101/linux/centos/epel/$basearch#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=http://172.16.1.101/linux/centos/epel/RPM-GPG-KEY-EPEL-6[epel-debuginfo]
name=ExtraPackagesforEnterpriseLinux6- $basearch -Debug
baseurl=http://172.16.1.101/linux/centos/epel/$basearch/debug#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-6&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=http://172.16.1.101/linux/centos/epel/RPM-GPG-KEY-EPEL-6
gpgcheck=1[epel-source]
name=ExtraPackagesforEnterpriseLinux6- $basearch -Source
baseurl=http://172.16.1.101/linux/centos/epel/SRPMS#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-6&arch=$basearch
failovermethod=priority
enabled=0#gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
gpgkey=http://172.16.1.101/linux/centos/epel/RPM-GPG-KEY-EPEL-6
gpgcheck=1

测试一下，一切正常。

附一个脚本：

#!/bin/bash
## rsync mirror centos and epel with yun-idc 
## visit http://mirrors.yun-idc.com/centos/5/
##       http://mirrors.yun-idc.com/centos/6/
##       http://mirrors.yun-idc.com/epel/5/
##       http://mirrors.yun-idc.com/epel/6/

Rsync="/usr/bin/rsync"
Options="-azvL  --exclude=SRPMS/  --exclude=xen --exclude=SCL/  --exclude=ppc64/ --exclude=ppc/--exclude=cr/ --exclude=fasttrack/ --exclude=isos/ --bwlimit=2000"
Reporoot="/opt/apache/htdocs/repo/"
Centos5="$Reporoot/5/"
Centos5epel="$Reporoot/epel/5/"
Centos6="$Reporoot/6/"
Centos6epel="$Reporoot/epel/6/"

Logdir="$Reporoot/logs/"
Date=`date +%Y-%m-%d`
Logfile="$Logdir/$Date.log"
Resultfile="$Logdir/$Date.log.res"

Checkres(){
    if [ $? == 0 ];then
       echo -e "33[1;32m $1 Rsync is success!33[0m" >> $Resultfile
    else
       echo -e "33[1;31m $1 Rsync is fail!33[0m" >> $Resultfile
    fi
}

Checkdir(){
    if [ ! -d $1 ];then
        mkdir -p $1
    fi
}
Checkdir $Logdir
Rsyncrepo(){
    Checkdir $2
    $Rsync $Options $1 $2 >> $Logfile
    Checkres $1
}

Rsyncrepo rsync://mirrors.yun-idc.com/centos/5/ $Centos5
Rsyncrepo rsync://mirrors.yun-idc.com/centos/6/ $Centos6
Rsyncrepo rsync://mirrors.yun-idc.com/epel/5/ $Centos5epel
Rsyncrepo rsync://mirrors.yun-idc.com/epel/6/ $Centos6epel
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原文地址：https://www.cnblogs.com/cmsd/p/3586407.html