在CentOS制作本地yum源

在CentOS制作本地yum源
公司电脑多，而且80％是Linux，所以制作本地yum源可以节省大量时间到网上更新。
我是使用apache作为yum传输工具
这是我的apache配置

#    ServerAdmin [e-mail]
    DocumentRoot /opt/Centos
    ServerName 192.168.5.30
#    ErrorLog logs/dummy-host.example.com-error_log
#    CustomLog logs/dummy-host.example.com-access_log common

    Options Indexes MultiViews
    AllowOverride None
    Order allow,deny
    Allow from all

yum 源的目录结构是
[root@host30 Centos]# tree -d /opt/Centos/
/opt/Centos/
`-- Centos
    |-- i386
    |   |-- addons
    |   |   |-- RPMS
    |   |   `-- repodata
    |   |-- centosplus
    |   |   |-- RPMS
    |   |   `-- repodata
    |   |-- contrib
    |   |   |-- RPMS
    |   |   `-- repodata
    |   |-- extras
    |   |   |-- RPMS
    |   |   `-- repodata
    |   |-- fasttrack
    |   |   |-- RPMS
    |   |   `-- repodata
    |   |-- os
    |   |   |-- CentOS
    |   |   |-- NOTES
    |   |   |-- images
    |   |   |   |-- pxeboot
    |   |   |   `-- xen
    |   |   |-- isolinux
    |   |   `-- repodata
    |   `-- updates
    |       |-- RPMS
    |       `-- repodata
    `-- x86_64
        |-- addons
        |   |-- RPMS
        |   `-- repodata
        |-- centosplus
        |   |-- RPMS
        |   `-- repodata
        |-- contrib
        |   |-- RPMS
        |   `-- repodata
        |-- extras
        |   |-- RPMS
        |   `-- repodata
        |-- fasttrack
        |   |-- RPMS
        |   `-- repodata
        |-- os
        |   |-- CentOS
        |   |-- NOTES
        |   |-- images
        |   |   |-- pxeboot
        |   |   `-- xen
        |   |-- isolinux
        |   `-- repodata
        `-- updates
            |-- RPMS
            `-- repodata
为了节省自己到网上更新的时间，可以将本地的iso镜像复制到os目录中

[root@host30 Centos]# mount
/opt/OS/CentOS-5.3-x86_64-bin-DVD.iso on /mnt/os type iso9660 (rw,loop=/dev/loop0)
/opt/OS/CentOS-5.4-i386-bin-DVD.iso on /mnt/os2 type iso9660 (rw,loop=/dev/loop1)
 
[root@host30 Centos]# cp -a /mnt/os/* /opt/Centos/Centos/i386/os/
[root@host30 Centos]# cp -a /mnt/os2/* /opt/Centos/Centos/x86_64/os/

到网上同步最新镜像
在rsync.muug.mb.ca/centos/5.4中有CentOS最新的源
[root@host30 rsync]# cat sync_yum_source.sh
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/updates/i386/ /opt/Centos/Centos/i386/updates/
#/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/os/i386/ /opt/Centos/Centos/i386/os/
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/addons/i386/ /opt/Centos/Centos/i386/addons/
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/centosplus/i386/ /opt/Centos/Centos/i386/centosplus/
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/extras/i386/ /opt/Centos/Centos/i386/extras/
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/fasttrack/i386/ /opt/Centos/Centos/i386/fasttrack/
/usr/bin/rsync -avrt --delete rsync://rsync.muug.mb.ca/centos/5.4/contrib/i386/ /opt/Centos/Centos/i386/contrib/

#/usr/bin/rsync -avrtzH --delete --exclude=SRPMS/ --exclude=x86_64/ --exclude=isos/ rsync://rsync.muug.mb.ca/centos/5.4/  /var/ftp/Centos/

/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/updates/x86_64/ /opt/Centos/Centos/x86_64/updates/
#/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/os/x86_64/ /opt/Centos/Centos/x86_64/os/
/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/addons/x86_64/ /opt/Centos/Centos/x86_64/addons/
/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/centosplus/x86_64/ /opt/Centos/Centos/x86_64/centosplus/
/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/extras/x86_64/ /opt/Centos/Centos/x86_64/extras/
/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/fasttrack/x86_64/ /opt/Centos/Centos/x86_64/fasttrack/
/usr/bin/rsync -avrtzH --delete rsync://rsync.muug.mb.ca/centos/5.4/contrib/x86_64/ /opt/Centos/Centos/x86_64/contrib/

作一个计划任务，保持和网上时时同步
[root@host30 rsync]# crontab -l
50 17 */1 * *  /export/rsync/sync_yum_source.sh &
[root@host30 rsync]#
这些做好了，现在要实现连上本地源了repo文件是CentOS中yum源的配置文件
这个是i386的repo文件
[root@host30 yum.repos.d]# cat Centos-host30.repo
[updates]
name=CentOS-$releasever - updates
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[base]
name=CentOS-$releasever - base
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[fasttrack]
name=CentOS-$releasever - fasttrack
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[extras]
name=CentOS-$releasever - extras
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[contrib]
name=CentOS-$releasever - contrib
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[centosplus]
name=CentOS-$releasever - centosplus
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[addons]
name=CentOS-$releasever - addons
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
这个是x86_64的repo文件

[root@host30 ftp]# cat Centos-x86_64.repo
[updates]
name=CentOS-$releasever - updates
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[base]
name=CentOS-$releasever - base
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[fasttrack]
name=CentOS-$releasever - fasttrack
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[extras]
name=CentOS-$releasever - extras
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[contrib]
name=CentOS-$releasever - contrib
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[centosplus]
name=CentOS-$releasever - centosplus
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
[addons]
name=CentOS-$releasever - addons
baseurl=
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

现在只要将本地的repo文件拷贝到需要更新的机器的/etc/yum.repos.d目录下
就可以实现在本地更新了