测试安装三节点Oracle 12C RAC，笔记本配置双核I5 16g内存，每台虚机分配4G 内存。
在数据库软件安装过程中，主实例异常重启，重新安装数据库软件，但是遇到报错。报错如下：
[INS-32025] The chosen installation conflicts with software already installed in the givenoraclehome.
处理方法如下：
[root@rac01 ContentsXML]# less inventory.xml
<?xml version="1.0" standalone="yes" ?>
<!-- Copyright (c) 1999,2017,Oracle and/or its affiliates.
All rights reserved. -->
<!-- Do not modify the contents of this file by hand. -->
<INVENTORY>
<VERSION_INFO>
<SAVED_WITH>12.2.0.1.4</SAVED_WITH>
<MINIMUM_VER>2.1.0.6.0</MINIMUM_VER>
</VERSION_INFO>
<HOME_LIST>
<HOME NAME="OraGI12Home1" LOC="/u01/12.2.0/grid" TYPE="O" IDX="1" CRS="true"/>
<HOME NAME="OraDB12Home1" LOC="/u01/app/oracle/product/12.2.0/db_1" TYPE="O" IDX="2"/>--删除掉这一行，保存退出
</HOME_LIST>
<COMPOSITEHOME_LIST>
</COMPOSITEHOME_LIST>
</INVENTORY>
2.重新启动安装程序
[root@rac01 ~]# su - oracle
<rac01:orcl1:/home/oracle>$ls
database linuxx64_12201_database.zip
<rac01:orcl1:/home/oracle>$cd database
<rac01:orcl1:/home/oracle/database>$./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 500 MB. Actual 11996 MB Passed
Checking swap space: must be greater than 150 MB. Actual 2040 MB Passed
Checking monitor: must be configured to display at least 256 colors. Actual 16777216 Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2017-08-18_08-06-21PM. Please wait ...
问题解决