Install Oracle 11gR2 Express Edition on RHEL5 x64

Configure OS and the database






id
root


groupadd -g 550 dba
groupadd -g 551 oinstall
useradd -c "Oracle software owner" -g oinstall -G dba -u 550 oracle -d /opt/oracle
mkdir /opt/oracle
chown oracle.oinstall /opt/oracle
passwd oracle

vi /etc/sysctl.conf

kernel.sem = 250 32000 100 128
fs.file-max = 6815744
net.core.rmem_default = 262144
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576


 /etc/init.d/oracle-xe configure



Oracle Database 11g Express Edition Configuration
-------------------------------------------------
This will configure on-boot properties of Oracle Database 11g Express
Edition.  The following questions will determine whether the database should
be starting upon system boot, the ports it will use, and the passwords that
will be used for database accounts.  Press <Enter> to accept the defaults.
Ctrl-C will abort.

Specify the HTTP port that will be used for Oracle Application Express [8080]:

Specify a port that will be used for the database listener [1521]:

Specify a password to be used for database accounts.  Note that the same
password will be used for SYS and SYSTEM.  Oracle recommends the use of
different passwords for each database account.  This can be done after
initial configuration:
Confirm the password:

Do you want Oracle Database 11g Express Edition to be started on boot (y/n) [y]:n

Starting Oracle Net Listener...Done
Configuring database...Done
Starting Oracle Database 11g Express Edition instance...Done
Installation completed successfully.

su - oracle

vi .bach_profile

export ORACLE_SID=XE
export ORACLE_BASE=$HOME
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/xe
export NLS_LANG=american_america.utf8
export TNS_ADMIN=$ORACLE_HOME/network/admin
export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export PATH=$ORACLE_HOME/bin:$PATH