yum快速入门-为yum添加常用插件及rpmforge安装源

yum本身比较简陋，但是可以通过增加插件及yum安装源来增强，以方便使用。

 

【常用插件】

yum-fastestmirror          #自动选择最快的yum源

yum-priorities                #多yum源下优先级支持

yum-downloadonly        #只下载rpm包而不安装

【yum安装源】

RPMForge(http://pkgs.repoforge.org)拥有4000多种CentOS的软件包，被CentOS社区认为是最安全也是最稳定的一个软件仓库。

 

 【使用yum-install.sh脚本自动安装插件及rpmforge源】

#!/bin/sh
#使用： ./yum-install.sh

 
#安装必要插件
yum install -y yum-fastestmirror
yum install -y yum-priorities
#vi /etc/yum/pluginconf.d/priorities.conf    #确认 enabled = 1

#准备目录 
cd /etc/yum.repos.d/
rm *.rpm
mkdir rpmforge_bak
yum install -y wget


#下载安装rpmforge
#从 http://rpmrepo.org/RPMforge/Using 可以得到rpmforge的最新版本
if [ "$HOSTTYPE" == "i686" ]
then
    wget http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS/apt-0.5.15lorg3.94a-5.el5.rf.x86_64.rpm
    wget http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
elif [ "$HOSTTYPE" == "x86_64" ]
then
    wget http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/apt-0.5.15lorg3.94a-5.el5.rf.i386.rpm 
    wget http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.i386.rpm 
fi
rpm -Uvh *.rpm
mv *.rpm rpmforge_bak
 
#安装其他插件
yum install -y yum-downloadonly

使用：./yum-install.sh

 

[root@instant_cacti ~]# yum --help     #执行该命令，可以看到以下插件已经生效
Loaded plugins: downloadonly, fastestmirror, priorities
...

 

【yum-downloadonly插件使用】

[root@instant_cacti ~]# yum --help|grep download
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, priorities
  --downloadonly don't update, just download
  --downloaddir=DLDIR specifies an alternate directory to store packages

[root@instant_cacti ~]# yum install -y cacti --downloadonly --downloaddir=./       #下载rpm包到当前目录
...

Remove 0 Package(s)
Install 1 Package(s)
Downgrade 0 Package(s)

Total download size: 2.2 M
Downloading Packages:
cacti-0.8.7g-2.el5.rf.noarch.rpm 0% [ ] 0.0 B/s | 16 kB --:-- ETAcacti-0.8.7g-2.el5.rf.noarch.rpm | 2.2 MB 00:05      

exiting because --downloadonly specified