yum简介

yum = Yellow dog Updater, Modified

主要功能是更方便的添加/删除/更新RPM包.

它能自动解决包的倚赖性问题.

它能便于管理大量系统的更新问题

当前linux版本 rhel7.0

前提

mount DVD光盘到/mnt   因为配置时候路径名里面不能有空格,否则不能识别

[root@LiuZhen mnt]# mount /dev/sr0 /mnt

在目录/etc/yum.repos.d/创建文件     文件名.repo

也可以VI直接编辑

[root@LiuZhen mnt]# cat> /etc/yum.repos.d/dvd.repo<< EOF

> [testyum]

> name=dvd

> baseurl=file:///mnt

> enable=1

> EOF

编辑完成，查看一下

[root@LiuZhen mnt]# cat /etc/yum.repos.d/dvd.repo

[testyum]

name=dvd

baseurl=file:///mnt

enable=1

导入release相关文件

[root@LiuZhen mnt]# rpm --import RPM-GPG-KEY-redhat-release

 
以上已经配置完成，安装dovecot进行测试

安装dovecot包文件

[root@LiuZhen mnt]# yum -y install dovecot

Loaded plugins: langpacks, product-id, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

Resolving Dependencies

--> Running transaction check

---> Package dovecot.x86_64 1:2.2.10-4.el7 will be installed

--> Processing Dependency: libclucene-core.so.1()(64bit) for package: 1:dovecot-2.2.10-4.el7.x86_64

--> Processing Dependency: libclucene-shared.so.1()(64bit) for package: 1:dovecot-2.2.10-4.el7.x86_64

--> Running transaction check

---> Package clucene-core.x86_64 0:2.3.3.4-11.el7 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

==================================================================================================================

 Package                      Arch                   Version                        Repository               Size

==================================================================================================================

Installing:

 dovecot                      x86_64                 1:2.2.10-4.el7                 testyum                 3.2 M

Installing for dependencies:

 clucene-core                 x86_64                 2.3.3.4-11.el7                 testyum                 528 k

Transaction Summary

==================================================================================================================

Install  1 Package (+1 Dependent package)

Total download size: 3.7 M

Installed size: 12 M

Downloading packages:

------------------------------------------------------------------------------------------------------------------

Total                                                                              59 MB/s | 3.7 MB  00:00:00    

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Warning: RPMDB altered outside of yum.

  Installing : clucene-core-2.3.3.4-11.el7.x86_64                                                             1/2

  Installing : 1:dovecot-2.2.10-4.el7.x86_64                                                                  2/2

testyum/productid                                                                          | 1.6 kB  00:00:00    

  Verifying  : 1:dovecot-2.2.10-4.el7.x86_64                                                                  1/2

  Verifying  : clucene-core-2.3.3.4-11.el7.x86_64                                                             2/2

Installed:

  dovecot.x86_64 1:2.2.10-4.el7                                                                                  

Dependency Installed:

  clucene-core.x86_64 0:2.3.3.4-11.el7                                                                           

Complete!

Public key for dovecot-2.2.10-4.el7.x86_64.rpm is not installed

查看包安装结果

[root@LiuZhen ~]# rpm -qa dovecot

dovecot-2.2.10-4.el7.x86_64

删除包操作

[root@LiuZhen mnt]# yum -y remove dovecot

Loaded plugins: langpacks, product-id, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

Resolving Dependencies

--> Running transaction check

---> Package dovecot.x86_64 1:2.2.10-4.el7 will be erased

--> Finished Dependency Resolution

Dependencies Resolved

==================================================================================================================

 Package                  Arch                    Version                         Repository                 Size

==================================================================================================================

Removing:

 dovecot                  x86_64                  1:2.2.10-4.el7                  @testyum                  9.7 M

Transaction Summary

==================================================================================================================

Remove  1 Package

Installed size: 9.7 M

Downloading packages:

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

  Erasing    : 1:dovecot-2.2.10-4.el7.x86_64                                                                  1/1

  Verifying  : 1:dovecot-2.2.10-4.el7.x86_64                                                                  1/1

Removed:

  dovecot.x86_64 1:2.2.10-4.el7                                                                                  

Complete!