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