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                [TOC] ## 一、背景介紹 > 大多數的工作場景中,部署階段,客戶一般會提供能夠訪問外網的服務器環境。但是,也不排除某些場景下,客戶無法或不能提供必要外網連接的服務器環境。 在這樣的情況下,我們可以使用離線yum源,來完成基礎環境的安裝。 首先先查看服務器Centos的版本: ``` cat /etc/issue ``` ## 二、安裝步驟 ### 1.下載包含yum源的鏡像文件 案例中我們使用centos7.4對應版本的安裝文件。進入下載初始頁,選擇對應版本7.4.1708 http://vault.centos.org/ 選擇Europe的第一個 http://vault.centos.org/notonvault.html 選擇對應版本,在此選擇下載7.4 http://mirror.nsc.liu.se/centos-store/7.4.1708/isos/x86_64/ 下載依據需求而定,最好下載everyting版本,但是因為太大,本文下載CentOS-7-x86_64-DVD-1708.iso版本。 ### 2.上傳到服務器 ``` /opt/softwares/CentOS-7-x86_64-DVD-1708.iso ``` ### 3.掛著鏡像到服務器 ``` mount /opt/softwares/CentOS-7-x86_64-DVD-1708.iso /mnt/cdrom/ ``` ### 4.將掛在盤內容復制到本地目錄 ``` mkdir /media/CentOS/ cp -fr /mnt/cdrom/* /media/CentOS/ ``` ### 5.將Yum源倉庫repo備份 ``` mkdir /etc/yum.repos.d/bak mv /etc/yum.repos.d/* /etc/yum.repos.d/bak ``` 備注:一定移除或者重命名/etc/yum.repos.d/CentOS-Base.repo這個文件,因為默認會首先讀取這個訪問外網源的文件 ### 6.復制CentOS-Media.repo并且編輯 ``` cp /etc/yum.repos.d/bak/CentOS-Media.repo /etc/yum.repos.d/ vi /etc/yum.repos.d/CentOS-Media.repo ``` 修改為: ``` # CentOS-Media.repo # # This repo can be used with mounted DVD media, verify the mount point for # CentOS-7. You can use this repo 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 repos too: # yum --enablerepo=c7-media [command] # # or for ONLY the media repo, do this: # # yum --disablerepo=\* --enablerepo=c7-media [command] [c7-media] name=CentOS-$releasever - Media baseurl=file:///media/CentOS/ #(1)-->這一行改成前邊我們新建的CentOS目錄 # file:///media/cdrom/ #(2)-->這一行加#號注釋掉 # file:///media/cdrecorder/ #(3)-->這一行加#號注釋掉 gpgcheck=1 enabled=1 #(4)-->這一行把0改成1來啟用源 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 ``` ### 7.卸載鏡像 ``` umount /mnt/cdrom/ ``` ### 8.檢測 ``` yum list ``` 結果: ``` systemtap-server.x86_64 3.1-3.el7 c7-media t1lib.x86_64 5.1.2-14.el7 c7-media taglib.x86_64 1.8-7.20130218git.el7 c7-media tagsoup.noarch 1.2.1-8.el7 c7-media talk.x86_64 0.17-46.el7 c7-media talk-server.x86_64 0.17-46.el7 c7-media targetcli.noarch 2.1.fb46-1.el7 c7-media targetd.noarch 0.8.6-1.el7 c7-media tbb.x86_64 4.1-9.20130314.el7 c7-media tbb-devel.x86_64 4.1-9.20130314.el7 c7-media tboot.x86_64 1:1.9.5-1.el7 c7-media tcl.x86_64 1:8.5.13-8.el7 c7-media tcl-devel.x86_64 1:8.5.13-8.el7 c7-media tcl-pgtcl.x86_64 2.0.0-5.el7 c7-media tcp_wrappers.x86_64 7.6-77.el7 c7-media tcp_wrappers-devel.x86_64 7.6-77.el7 c7-media tcpdump.x86_64 14:4.9.0-5.el7 c7-media tcsh.x86_64 6.18.01-15.el7 c7-media tdb-tools.x86_64 1.3.12-2.el7 c7-media telepathy-farstream.x86_64 0.6.0-5.el7 c7-media telepathy-filesystem.noarch 0.0.2-6.el7 c7-media ``` 到此為之,我們就可以在系統中使用yum安裝我們自己想要的包了。but,如果你有N臺服務器需要部署,難道我們要把一個幾個G的文件傳來傳去?我們可以基于本地yum源構建一個共享yum源,這樣就可以構造一個私有的yum源,以方便在其他服務器中進行部署了。 ## 三、共享yum源 ### 1.在本地yum源配置完成之后安裝apache ``` yum install httpd systemctl start httpd systemctl enable httpd systemctl stop firewalld systemctl disable firewalld ``` ### 2.創建掛載文件目錄 ``` mkdir /var/www/html/source7.4 ``` ### 3.掛載鏡像 ``` mount /opt/softwares/CentOS-7-x86_64-DVD-1708.iso /var/www/html/source7.4/ ``` ### 4.開機自動掛載 (1)編輯rc.local寫入 ``` vim /etc/rc.d/rc.local mount /opt/softwares/CentOS-7-x86_64-DVD-1708.iso /var/www/html/source7.4/ ``` (2)修改權限 ``` chmod +x /etc/rc.d/rc.local ``` ### 5.訪問 ``` http://IP/source7.4/ ``` 結果: ![](https://img-blog.csdnimg.cn/20190319123925213.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTA4ODYyMTc=,size_16,color_FFFFFF,t_70) > 參考資料:https://blog.csdn.net/u010886217/article/details/88647591
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