This article presents how to install Oracle 12C(12.2) Release 2 on Oracle Enterprise Linux 7 (OEL7).
Read following article how to install Oracle Enterprise Linux 7: Install Oracle Linux 7 (OEL7) (for comfort set 4G memory for your virtual machine before proceeding with Oracle software installation).
Software for 12CR2 is available on OTN or edelivery
- OTN: Oracle Database 12c Release 2 (12.2.0.1) Software (64-bit)
- edelivery: Oracle Database 12c Release 1 (12.2.0.1) Software (64-bit)
Database software
linuxx64_12201_database.zip
OS configuration and preparation
OS configuration is executed as root. To login as root just execute following command in terminal.
su - root
The /etc/hosts file must contain a fully qualified name for the server.
<IP-address> <fully-qualified-machine-name> <machine-name>
For example.
127.0.0.1 oel7 oel7.dbaora.com localhost.localdomain localhost
Set hostname
hostnamectl set-hostname oel7.dbaora.com --static
Add groups
#groups for database management
groupadd -g 54321 oinstall
groupadd -g 54322 dba
groupadd -g 54323 oper
groupadd -g 54324 backupdba
groupadd -g 54325 dgdba
groupadd -g 54326 kmdba
groupadd -g 54327 asmdba
groupadd -g 54328 asmoper
groupadd -g 54329 asmadmin
groupadd -g 54330 racdba
useradd -u 54321 -g oinstall -G dba,oper,backupdba,dgdba,kmdba,racdba oracle
Change password for user Oracle
passwd oracle
Check which packages are installed and which are missing
rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE}(%{ARCH})\n' binutils \
compat-libcap1
compat-libstdc++-33
glibc
glibc-devel
ksh
libaio
libaio-devel
libX11
libXau
libXi
libXtst
libgcc
libstdc++
libstdc++-devel
libxcb
make
nfs-utils
smartmontools
net-tools
sysstat
You can install missing packages from dvd. Just mount it and install missing packages using rpm -Uvh command from directory /Packages or by using yum install command.
NOTE – I’m using x86_64 version of packages
First option from dvd
rpm -Uvh libaio-devel*.x86_64.rpm
rpm -Uvh ksh*.x86_64.rpm
Second option using yum install command. It requires access to internet.
yum install libaio-devel*.x86_64
yum install ksh*.x86_64
Add kernel parameters to /etc/sysctl.conf
# kernel parameters for 12gR2 installation
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
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
kernel.panic_on_oops=1
Apply kernel parameters
/sbin/sysctl -p
Add following lines to set shell limits for user oracle in file /etc/security/limits.conf
# shell limits for users oracle 12gR2
oracle soft nofile 1024
oracle hard nofile 65536
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft stack 10240
oracle hard stack 32768
oracle soft memlock 3145728
oracle hard memlock 3145728
Disable firewall
service iptables stop
chkconfig iptables off
Additional steps
Add following lines in .bash_profile for user oracle
# Oracle Settings
export TMP=/tmp
export ORACLE_HOSTNAME=oel7.dbaora.com
export ORACLE_UNQNAME=ORA12C
export ORACLE_BASE=/ora01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.2.0/db_1
export ORACLE_SID=ORA12C
PATH=/usr/sbin:$PATH:$ORACLE_HOME/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;
alias cdob='cd $ORACLE_BASE'
alias cdoh='cd $ORACLE_HOME'
alias tns='cd $ORACLE_HOME/network/admin'
alias envo='env | grep ORACLE'
umask 022
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -u 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
envo
Directory structure
Create directory structure as user root
ORACLE_BASE – /ora01/app/oracle
ORACLE_HOME – /ora01/app/oracle/product/12.2.0/db_1
mkdir -p /ora01/app/oracle/product/12.2.0/db_1
chown oracle:oinstall -R /ora01
“OPTIONAL” – In Oracle Enterprise Linux 7 /tmp data is stored on tmpfs which consumes memory and is too small. To revert it back to storage just run following command and REBOOT machine to be effective.
systemctl mask tmp.mount
######Install database software
Let’s start with database software installation as oracle user. Usually I’m connected as user root in GNOME so you need to use ssh.
Connect as user oracle
[root@oel7 ~]# ssh oracle@oel7.dbaora.com -X
Let’s start with database software installation as oracle user.
--unizp software it will create directory "database"
--where you can find installation software
unzip linuxx64_12201_database.zip
--I defined 4 aliases in .bash_profile of user oracle to make --administration easier :)
[oracle@oel7 ~]$ alias envo cdob cdoh tns
alias envo='env | grep ORACLE'
alias cdob='cd $ORACLE_BASE'
alias cdoh='cd $ORACLE_HOME'
alias tns='cd $ORACLE_HOME/network/admin'
--run alias command envo to display environment settings envo ORACLE_UNQNAME=ORA12C ORACLE_SID=ORA12C ORACLE_BASE=/ora01/app/oracle ORACLE_HOSTNAME=oel7.dbaora.com ORACLE_HOME=/ora01/app/oracle/product/12.2.0/db_1
--run alias command cdob and cdoh --to check ORACLE_BASE, ORACLE_HOME [oracle@oel7 ~]$ cdob [oracle@oel7 oracle]$ pwd /ora01/app/oracle
[oracle@oel7 db_1]$ cdoh
[oracle@oel7 db_1]$ pwd
/ora01/app/oracle/product/12.2.0/db_1
--run installation from "database" directory ./runInstaller
1. Uncheck checkbox “I wish to receive security updates via My Oracle Support” and then click “Next” button.
2. Ignore following message and click “Yes” button.
3. Select “Create and configure a database” then click “Next” button.
4. Select “Server class” and click “Next” button.
5. Accept default “Single instance database installation” and click “Next” button.
6. Select “Advanced install” to later select more options during database installation and click “Next” button.
7. You can select here type of binaries to install. Once it’s done click “Next” button.
8. Here you should see directories for ORACLE_BASE and ORACLE_HOME for your binaries according to environmental settings. Click “Next” button.
9. Accept default and click “Next” button.
10. Accept default “General Purpose/ transaction Processing” and click “Next” button.
11. Check checkbox “Create as Container database” and enter “Pluggable database name” to add your first container database ORA12C and pluggable database PORA12C1, click “Next” button.
12. Specify more details about your database on 3 tabs where you can define memory settings, character set and if to install sample schema on your database. Once you are happy with your settings click “Next” button.
13. Specify directory where you want to install your database files then click “Next” button.
14. On this page you can register your database in Oracle Enterprise Manager”. Accept default settings and click “Next” button.
15. Check checkbox “Enable Recovery” to specify directory for your recovery area “Recovery area location” and click “Next” button.
16. Specify password for each user or enter the same for all. Once it’s done click “Next” button.
17. Here you can specify OS group for each oracle group. Accept default settings and click “Next” button.
18. Checks are started to verify if OS is ready to install database software.
19. If everything is right click “Install” button. It’s the last moment to come back to each of previous point and make changes.
20. Installation in progress … go play FIFA on PS4 :p
21. Once binaries are installed the last step is to run 2 scripts as user root.
--execute scripts
/ora01/app/oraInventory/orainstRoot.sh
/ora01/app/oracle/product/12.2.0/db_1/root.sh
Second script enables to install Oracle Trace File Analyzer (TFA). It’s worth to install it.
23. Installation will continue … but suddenly error occurred
It was problem with listener. I had to start it manually. Once LISTENER is started click “Retry” button and installation should continue
[oracle@oel7 ~]$ lsnrctl start
24. You are lucky 12C installation is completed. Click “Close” button.
25.Another summary with information about “Enterprise manager database express”
26. Try to login as SYS to Enterprise manager Database express 12C .
NOTE – It requires to install flash plug-in and running listener. In addition don’t provide container name to connect.
https://oel7.dbaora.com:5500/em
27. Try to connect to container database as user SYS using sqlplus tool
[oracle@oel7 ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Thu Mar 23 15:51:38 2017
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to: Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL>
Problems
In release 12.2.0.1 following bugs can be encountered
- Problem with LISTNER. It doesn’t started and DBCA recognized it as bug.
Have a fun 🙂