#redhat7.2改變yum源為阿里云 ## 一、 改變yum源 ###1. 卸載redhat的yum程序 ``` rpm -qa | grep yum rpm -qa | grep yum|xargs rpm -e --nodeps rpm -qa | grep python-urlgrabber|xargs rpm -e --nodeps ``` ###2. 下載aliyun中的centos的yum相關程序 ####1) 上傳wget的rpm包并安裝 略`[wget-1.12-10.el6.x86_64.rpm]` ####2) 然后下載相關安裝包 ``` wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-45.el7.noarch.rpm wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-8.el7.noarch.rpm ``` ###3. 安裝pathon擴展和yum包 ``` rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm \ yum-3.4.3-158.el7.centos.noarch.rpm \ yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm \ yum-utils-1.1.31-45.el7.noarch.rpm --nodeps ``` 至此修改yum源完成,可直接用yum在線安裝 ###4. 備份并新增yum源 ``` mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo sed -i 's#\$releasever#7#g' /etc/yum.repos.d/CentOS-Base.repo ``` ##二、 開啟rpm包緩存(如果需要) ###1. 開啟緩存 ``` mkdir -p /server/tools sed -i 's#^cachedir.*#cachedir=/server/tools#g' /etc/yum.conf sed -i 's#keepcache=0#keepcache=1#g' /etc/yum.conf ``` ###2. 安裝軟件(以nginx為例) `yum install nginx -y` 安裝之前,最好對虛擬機做快照,每次安裝新軟件之前,都恢復快照后用干凈的系統進行緩存 ###3. 打包安裝包 相關包緩存路徑 /server/tools下,將里面的所有rpm包轉移到一個目錄下,然后重命名,再用tar打包(注明軟件名.系統版本,軟件版本),便于在其他環境離線安裝 ###4. 離線安裝方法 ``` tar xf xxx.tar.gz cd xxx yum localinstall *或主文件名[如: nginx-1.12.2-2.el7.x86_64.rpm] localinstall是進行yum本地安裝,會解決依賴關系(前提是安裝包中有該依賴包的離線文件) ```