At the end of a grid infrastructure installation, the user is prompted to run the "root.sh" script,i

grid version:linux.x64_11gR2_grid (11.2.0.1.0)

oracle database version:linux.x64_11gR2_database (11.2.0.1.0)

Symptoms:

[root@rac01 cdata]# /u01/11.2.0/grid/root.sh
Running Oracle 11g root.sh script...
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /u01/11.2.0/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The file "dbhome" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying dbhome to /usr/local/bin ...
The file "oraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying oraenv to /usr/local/bin ...
The file "coraenv" already exists in /usr/local/bin. Overwrite it? (y/n)