我有一个软件模块的RPM，我想安装到CentOS 6系统上。我已通过命令'rpm -ivh'将此RPM安装到yum数据库中。我的理解是，现在RPM可用于通过'yum install'安装模块，但是这没有用，即我在尝试时得到“无需安装”消息。所以我一定不能做对吗？有人可以建议吗？
FYI这是我到目前为止所尝试的内容：
$ rpm -ivh cx_Oracle-5.1.2-11g-py27-1.x86_64.rpm
Preparing... ########################################### [100%]
1:cx_Oracle ########################################### [100%]
$ yum search cx_Oracle
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.ash.fastserv.com
* extras: mirror.symnds.com
* updates: ftp.linux.ncsu.edu
base | 3.7 kB 00:00
extras | 3.5 kB 00:00
updates | 3.5 kB 00:00
============================ N/S Matched: cx_Oracle ============================
cx_Oracle.x86_64 : Python interface to Oracle
$ yum install cx_Oracle
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.ash.fastserv.com
* extras: mirror.symnds.com
* updates: ftp.linux.ncsu.edu
base | 3.7 kB 00:00
extras | 3.5 kB 00:00
updates | 3.5 kB 00:00
Setting up Install Process
Nothing to do
$ yum update cx_Oracle
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.ash.fastserv.com
* extras: mirror.symnds.com
* updates: ftp.linux.ncsu.edu
base | 3.7 kB 00:00
extras | 3.5 kB 00:00
updates | 3.5 kB 00:00
Setting up Update Process
No Packages marked for Update
提前感谢任何建议，见解等。
答案 0 :(得分：0)
您已安装该软件包。您使用rpm安装cx_Oracle-5.1.2-11g-py27-1.x86_64.rpm。 yum search cx_Oracle报告的“cx_Oracle.x86_64”是您通过rpm命令在计算机上安装的那个。