Step 1 Create Oracle Users and Group (in all Nodes)
Log in as a root and execute:
# groupadd oinstall
# groupadd dba
# mkdir -p /export/home/oracle
# useradd -d /export/home/oracle -g oinstall -G dba grid
# chown grid:dba /home/grid
# passwd oracle
New Password:
Re-enter new Password:
passwd: password successfully changed for oracle
useradd -d /opt/oracle -g oinstall -G dba oracle
