前言
YUM(全称为 Yellow dog Updater, Modified)是一个在Fedora中的Shell前端软件包管理器。基于RPM包管理,能够从指定的服务器自动下载RPM包并且安装,可以自动处理依赖性关系,并且一次安装所有依赖的软体包,无须繁琐地一次次下载和安装。文章以RHEL(Red Hat Enterprise
Linux)配置YUM源为例分享YUM常用命令技巧以及如何搭建ISO本地源和CentOS
YUM源。
YUM是一个安装,卸载和搜索软件包的工具
YUM常用命令
列举平时做常用的几组YUM命令
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| #清除缓存目录
yum clean all
#更新缓存
yum makecache
#使用YUM查找软件包
yum search telnet
#用YUM安装软件包
yum install telnet
#用YUM删除软件包
yum remove telnet
#安装更新软件
yum update
yum update telnet
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本地YUM源
无论直接加载ISO还是拷贝文件来搭建本地YUM源都是很简单的
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| #通过ISO镜像挂载或者复制文件
mount -o loop rhel-server-6.3-x86_64-dvd.iso /mnt
mkdir /tmp/repo
cp -r /mnt/* /tmp/repo
#编辑本地YUM源文件
cd /etc/yum.repos.d/
#清除老配置,rm -rf *
vi local.repo
[rhel6.3]
name=rhel6.3
baseurl=file:///tmp/repo
enabled=1
gpgcheck=0
#清除yum缓存并更新
yum clean all
yum makecache
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
rhel6.3 | 4.0 kB 00:00 ...
rhel6.3/filelists_db | 3.7 MB 00:00 ...
rhel6.3/primary_db | 3.1 MB 00:00 ...
rhel6.3/other_db | 1.6 MB 00:00 ...
rhel6.3/group_gz | 204 kB 00:00 ...
Metadata Cache Created
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搭建YUM服务器
选择ftp或http等方式多可以,偷懒必须要简单有效
YUM服务端
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| #安装apache
yum install httpd*
#编辑apache配置文件
cd /etc/httpd/conf
cp httpd.conf httpd.conf.bak
#删除测试启动服务
rm -f /etc/httpd/conf.d/welcome.conf /var/www/error/noindex.html
#拷贝文件到目录或者修改httpd.conf中的DocumentRoot
cp -r /tmp/repo /var/www/html
cd /var/www/html
chmod -R 755 repo/
#重启apache服务 并设置服务自启动
service httpd restart
chkconfig httpd on
chkconfig --list | grep httpd
httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
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YUM客户端
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| cd /etc/yum.repos.d
#清除老配置,rm -rf *
vi http.repo
[rhel6.3]
name=rhel6.3
baseurl=http://172.28.70.160/repo
enabled=1
gpgcheck=0
#清除yum配置缓存并更新
yum clean all
yum makecache
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CentOS 6.X YUM源
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| #导入GPG key
sudo rpm --import http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
#修改repo文件添加CentOS 6.X的YUM源
cd /etc/yum.repos.d/
cp rhel-source.repo rhel-source.repo.bak
vi rhel-source.repo
[base]
name=CentOS-$releasever-Base
baseurl=http://centos.ustc.edu.cn/centos/6/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
[updates]
name=CentOS-$releasever-Updates
baseurl=http://centos.ustc.edu.cn/centos/6/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
[extras]
name=CentOS-$releasever-Extras
baseurl=http://centos.ustc.edu.cn/centos/6/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-6
[centosplus]
name=CentOS-$releasever-Plus
baseurl=http://centos.ustc.edu.cn/centos/6/os/x86_64/
gpgcheck=1
#清除缓存查看是否生效
yum clean all
yum makecache
yum repolist
#安装yum-plugin-downloadonly插件
yum install -y yum-plugin-downloadonly
#YUM只下载不安装
yum install --downloadonly --downloaddir=/tmp/puppet puppet
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CentOS 7.X YUM源
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| #导入GPG key
sudo rpm --import http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-7
#修改repo文件添加CentOS 7.X的YUM源
cd /etc/yum.repos.d/
cp rhel-source.repo rhel-source.repo.bak
vi rhel-source.repo
[base]
name=CentOS-$releasever-Base
baseurl=http://centos.ustc.edu.cn/centos/7/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-7
[updates]
name=CentOS-$releasever-Updates
baseurl=http://centos.ustc.edu.cn/centos/7/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-7
[extras]
name=CentOS-$releasever-Extras
baseurl=http://centos.ustc.edu.cn/centos/7/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-7
[centosplus]
name=CentOS-$releasever-Plus
baseurl=http://centos.ustc.edu.cn/centos/7/os/x86_64/
gpgcheck=1
#清除缓存查看是否生效
yum clean all
yum makecache
yum repolist
#安装yum-plugin-downloadonly插件
yum install -y yum-plugin-downloadonly
#YUM只下载不安装
yum install --downloadonly --downloaddir=/tmp/pacemaker pacemaker
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