問題一：

執行oracleasm命令失敗，需要安裝以下三個軟件：

oracleasm-support-2.1.8-1.el6.i686
kmod-oracleasm-2.0.8-15.el6_9.x86_64

oracleasmlib-2.0.12-1.el6.x86_64.rpm

問題二：

在grid用戶執行安裝命令時安裝檢測失敗

racdb1-> ./runInstaller 
Starting Oracle Universal Installer...

Checking Temp space: must be greater than 120 MB.   Actual 1962 MB    Passed
Checking swap space: must be greater than 150 MB.   Actual 3953 MB    Passed
Checking monitor: must be configured to display at least 256 colors
    >>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set.    Failed <<<<

Some requirement checks failed. You must fulfill these requirements before

continuing with the installation,

Continue? (y/n) [n] n
 

解決：

Steps to resolve this issue:

1) login into root user( su -l root)

2) execute this command : xhost +SI:localuser:oracle

3) login to the oracle user

4) execute ./runInstaller

sentos 6.5 安裝 oracle11g R2 RAC遇到的問題處理