在单一体系结构下同时安装32位和64位包
echo ‘multilib_policy=all’ >> /etc/yum.conf

指定体系结构

查看当前系统体系结构
[root@oracle ~]# uname -ar
Linux oracle 2.6.32-279.14.1.el6.x86_64 #1 SMP Tue Nov 6 23:43:09 UTC 2012 x86_64 x86_64 x86_64

GNU/Linux

查看系统当前安装的iptables包
[root@oracle ~]# rpm -q iptables
iptables-1.4.7-5.1.el6_2.x86_64

使用YUM在64位环境下指定安装iptables的32位包
[root@oracle ~]# yum install iptables.i686
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.163.com
* updates: mirrors.163.com
Setting up Install Process
Resolving Dependencies
–> Running transaction check
—> Package iptables.i686 0:1.4.7-5.1.el6_2 will be installed
–> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================
Package Arch Version Repository Size
=================================================================================================
Installing:
iptables i686 1.4.7-5.1.el6_2 base 241 k

Transaction Summary
=================================================================================================
Install 1 Package(s)

Total download size: 241 k
Installed size: 702 k
Is this ok [y/N]:

查看当前安装版本
[root@oracle ~]# rpm -q cups
cups-1.4.2-48.el6_3.1.x86_64

查看是否有新版本及版本号
[root@oracle ~]# yum update |grep cups
—> Package cups.x86_64 1:1.4.2-48.el6_3.1 will be updated
—> Package cups.x86_64 1:1.4.2-48.el6_3.3 will be an update
—> Package cups-libs.x86_64 1:1.4.2-48.el6_3.1 will be updated
—> Package cups-libs.x86_64 1:1.4.2-48.el6_3.3 will be an update
cups x86_64 1:1.4.2-48.el6_3.3 updates 2.3 M
cups-libs x86_64 1:1.4.2-48.el6_3.3 updates 316 k

[root@oracle ~]#

安装指定版本
[root@oracle ~]# yum install cups-1.4.2-48.el6_3.3
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.163.com
* updates: mirrors.163.com
Setting up Install Process
Resolving Dependencies
–> Running transaction check
—> Package cups.x86_64 1:1.4.2-48.el6_3.1 will be updated
—> Package cups.x86_64 1:1.4.2-48.el6_3.3 will be an update
–> Processing Dependency: cups-libs = 1:1.4.2-48.el6_3.3 for package: 1:cups-1.4.2-48.el6_3.3.x86_64
–> Running transaction check
—> Package cups-libs.x86_64 1:1.4.2-48.el6_3.1 will be updated
—> Package cups-libs.x86_64 1:1.4.2-48.el6_3.3 will be an update
–> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================
Package Arch Version Repository Size
=================================================================================================
Updating:
cups x86_64 1:1.4.2-48.el6_3.3 updates 2.3 M
Updating for dependencies:
cups-libs x86_64 1:1.4.2-48.el6_3.3 updates 316 k

Transaction Summary
=================================================================================================
Upgrade 2 Package(s)

Total download size: 2.6 M
Is this ok [y/N]:

yum安装指定版本软件

比如依赖libssl.so.0.9.8