今天安装11g rac 11.2.0.1的时候在执行root.sh的时候出现：
[root@rac01 Desktop]# sh /u01/app/11.1.0/grid/root.sh
Running Oracle 11g root.sh script...
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /u01/app/11.1.0/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]:
copying dbhome to /usr/local/bin ...
copying oraenv to /usr/local/bin ...
copying coraenv to /usr/local/bin ...
Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
2019-04-24 10:46:10: Parsing the host name
2019-04-24 10:46:10: Checking for super user privileges
2019-04-24 10:46:10: User has super user privileges
Using configuration parameter file: /u01/app/11.1.0/grid/crs/install/crsconfig_params
Creating trace directory
LOCAL ADD MODE
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
root wallet
root wallet cert
root cert export
peer wallet
profile reader wallet
pa wallet
peer wallet keys
pa wallet keys
peer cert request
pa cert request
peer cert
pa cert
peer root cert TP
profile reader root cert TP
pa root cert TP
peer pa cert TP
pa peer cert TP
profile reader pa cert TP
profile reader peer cert TP
peer user cert
pa user cert
Adding daemon to inittab
CRS-4124: Oracle High Availability Services startup Failed.
CRS-4000: Command Start Failed, or completed with errors.
ohasd Failed to start: Inappropriate ioctl for device
ohasd Failed to start at /u01/app/11.1.0/grid/crs/install/rootcrs.pl line 443.
首先卸载grid软件：/u01/app/11.1.0/grid/crs/install/roothas.pl -deconfig -force -verbose
重新执行root.sh脚本
在执行Adding daemon to inittab这一步的同时，打开个窗口，用root用户执行：/bin/dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1。
