Steps before installation oracle on linux-2

unlock yum repository

----Error :No package oracle-rdbms-server-11gR2-preinstall available.--------
cd /etc/yum.repos.d
wget http://public-yum.oracle.com/public-yum-ol6.repo
wget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
yum install oracle-rdbms-server-11gR2-preinstall

[root@localhost ~]# cd setup/

[root@localhost setup]#

[root@localhost setup]# unzip p13390677_112040_Linux-x86-64_1of7.zip

[root@localhost setup]# unzip p13390677_112040_Linux-x86-64_2of7.zip

[root@localhost setup]# cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

[root@localhost setup]# yum install oracle-rdbms-server-11gR2-preinstall

[root@localhost setup]# vi /etc/sysctl.conf

fs.suid_dumpable = 1

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 915093504

kernel.shmmni = 4096

# semaphores: semmsl, semmns, semopm, semmni

kernel.sem = 250 32000 100 128

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default=262144

net.core.rmem_max=4194304

net.core.wmem_default=262144

net.core.wmem_max=1048586

[root@localhost setup]# /sbin/sysctl -p

net.ipv4.ip_forward = 0

net.ipv4.conf.default.rp_filter = 1

net.ipv4.conf.default.accept_source_route = 0

kernel.sysrq = 0

kernel.core_uses_pid = 1

net.ipv4.tcp_syncookies = 1

net.bridge.bridge-nf-call-ip6tables = 0

net.bridge.bridge-nf-call-iptables = 0

net.bridge.bridge-nf-call-arptables = 0

kernel.msgmnb = 65536

kernel.msgmax = 65536

kernel.shmall = 4294967296

fs.file-max = 6815744

kernel.sem = 250 32000 100 128

kernel.shmmni = 4096

kernel.shmmax = 4398046511104

kernel.panic_on_oops = 1

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048576

fs.aio-max-nr = 1048576

net.ipv4.ip_local_port_range = 9000 65500

fs.suid_dumpable = 1

fs.aio-max-nr = 1048576

fs.file-max = 6815744

kernel.shmall = 2097152

kernel.shmmax = 536870912

kernel.shmmni = 4096

kernel.sem = 250 32000 100 128

net.ipv4.ip_local_port_range = 9000 65500

net.core.rmem_default = 262144

net.core.rmem_max = 4194304

net.core.wmem_default = 262144

net.core.wmem_max = 1048586

[root@localhost setup]#

[root@localhost setup]# vi /etc/security/limits.conf

oracle              soft    nproc   16384

oracle              hard    nproc   16384

oracle              soft    nofile  4096

oracle              hard    nofile  65536

oracle              soft    stack   10240

[root@localhost setup]# userdel oracle

[root@localhost setup]# groupdel oinstall

[root@localhost setup]# groupdel dba

[root@localhost home]# groupadd dba  -g 502

[root@localhost home]# groupadd oinstall -g 501

[root@localhost home]# groupadd oper -g 503

[root@localhost home]# useradd -g oinstall -G dba,oper -u 501 oracle

Creating mailbox file: File exists

[root@localhost home]#

[root@localhost home]# passwd oracle

Changing password for user oracle.

New password:

BAD PASSWORD: it is based on a dictionary word

BAD PASSWORD: is too simple

Retype new password:

passwd: all authentication tokens updated successfully.

[root@localhost home]#

[root@localhost home]# vi /etc/security/limits.d/90-nproc.conf

# Change this

*          soft    nproc    1024

# To this

* - nproc 16384

[root@localhost home]#

[root@localhost home]# vi /etc/selinux/config

SELINUX=disabled

[root@localhost ~]# mkdir -p /u01/app/oracle

[root@localhost ~]# chown -R oracle:oinstall /u01/app/oracle

[root@localhost ~]# chmod -R 777/u01/app/oracle

[root@localhost /]# vi /home/oracle/.bash_profile

PATH=$PATH:$HOME/bin

ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE

ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1; export ORACLE_HOME

ORACLE_TERM=xterm; export ORACLE_TERM

ORACLE_SID=orcl; export ORACLE_SID

TEMP=/u01/app/

TMPDIR=/u01/app/

export TEMP TMPDIR

JAVA_HOME=$ORACLE_HOME/jdk; export JAVA_HOME

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH

CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH

PATH=$PATH:/u01/app/oracle/product/11.2.0/dbhome_1/bin:/u01/app/oracle/product/11.2.0/dbhome_1/jdk/bin

export PATH

login to oracle user

[oracle@localhost database]$  ./runInstaller