[Oracle RAC 11.2 Installation on Oracle Linux 5.8 x86_64]: Creating oracle11 user and groups

System parameter configuration (performed on both cluster nodes)

Before making changes to configuration scripts, create their backups:

# {
cp /etc/sysctl.conf /etc/sysctl.conf.bkp
cp /etc/security/limits.conf /etc/security/limits.conf.bkp
cp /etc/pam.d/login /etc/pam.d/login.bkp
cp /etc/profile /etc/profile.bkp
}

Create groups:

# groupadd -g 1000 oinstall
# groupadd -g 1001 dba
# groupadd -g 1002 oper

Create the oracle11 user, specify that he will be a member of dba and oinstall groups and his home directory will be /home/oracle11

# useradd -g oinstall -G dba -d /home/oracle11 oracle11

Set the password for oracle11 user

# passwd oracle11