Saturday, 19 August 2017

Oracle Database 12c Release 2 (12.2) Installation On Fedora 25 (F25)

This article describes the installation of Oracle Database 12c Release 2 (12.2) 64-bit on Fedora 25 (F25) 64-bit. The article is based on a server installation with a minimum of 2G swap and secure Linux set to permissive.

  • Download Software


Download the Oracle software from OTN or MOS depending on your support status.

  • Unpack Files


Unzip the file.

unzip linuxx64_12201_database.zip

You should now have a single directory called "database" containing installation files.

  • Hosts File


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       localhost localhost.localdomain localhost4 localhost4.localdomain4
192.168.56.104  fedora25.localdomain  fedora25

Set the correct hostname in the "/etc/hostname" file.

fedora25.localdomain

  • Set Kernel Parameters


Add the following lines to the "/etc/sysctl.conf" file, or in a file called "/etc/sysctl.d/98-oracle.conf".

fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
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
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500

Run the following command to change the current kernel parameters.

/sbin/sysctl -p

Add the following lines to a file called "/etc/security/limits.d/oracle-database-server-12cR2-preinstall.conf" file.

oracle   soft   nofile    1024
oracle   hard   nofile    65536
oracle   soft   nproc    16384
oracle   hard   nproc    16384
oracle   soft   stack    10240
oracle   hard   stack    32768
oracle   hard   memlock    134217728
oracle   soft   memlock    134217728

Stop and disable the firewall. You can configure it later if you wish.

# systemctl stop firewalld
# systemctl disable firewalld

Set SELinux to permissive by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.

SELINUX=permissive

The server will need a reboot for the change to take effect.

  • Setup


Before we consider the packages required by the Oracle installation, it's probably worth making sure some basic package groups are installed.

dnf groupinstall "MATE Desktop" -y
dnf groupinstall "Development Tools" -y
dnf groupinstall "Administration Tools" -y
dnf groupinstall "System Tools" -y
dnf install firefox -y

If you have installed the suggested package groups, the majority of the necessary packages will already be installed. The following packages are listed as required, including the 32-bit version of some of the packages. Many of the packages should be installed already.

dnf install binutils -y
dnf install compat-libcap1 -y
dnf install compat-libstdc++-33 -y
dnf install compat-libstdc++-33.i686 -y
dnf  install glibc -y
dnf install glibc.i686 -y
dnf install glibc-devel -y
dnf install glibc-devel.i686 -y
dnf install ksh -y
dnf install libaio -y
dnf install libaio.i686 -y
dnf install libaio-devel -y
dnf install libaio-devel.i686 -y
dnf install libX11 -y
dnf install libX11.i686 -y
dnf install libXau -y
dnf install libXau.i686 -y
dnf install libXi -y
dnf install libXi.i686 -y
dnf install libXtst -y
dnf install libXtst.i686 -y
dnf install libgcc -y
dnf install libgcc.i686 -y
dnf install libstdc++ -y
dnf install libstdc++.i686 -y
dnf install libstdc++-devel -y
dnf install libstdc++-devel.i686 -y
dnf install libxcb -y
dnf install libxcb.i686 -y
dnf install make -y
dnf install nfs-utils -y
dnf install net-tools -y
dnf install smartmontools -y
dnf install sysstat -y
dnf install unixODBC -y
dnf install unixODBC-devel -y

Create the new groups and users.

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

useradd -u 54321 -g oinstall -G dba,oper oracle
passwd oracle

We are not going to use the extra groups, but include them if you do plan on using them.

Create the directories in which the Oracle software will be installed.

mkdir -p /u01/app/oracle/product/12.2.0.1/db_1
chown -R oracle:oinstall /u01
chmod -R 775 /u01

Putting mount points directly under root is typically a bad idea. It's done here for simplicity, but for a real installation "/" should be reserved for the OS.
If you are using X Emulation, login as root and issue the following command.

xhost +<machine-name>

Edit the "/etc/redhat-release" file replacing the current release information "Fedora release 25 (Twenty Five)" with the following.

redhat release 7

Login as the oracle user and add the following lines at the end of the "/home/oracle/.bash_profile" file.

# Oracle Settings
export TMP=/tmp
export TMPDIR=$TMP

export ORACLE_HOSTNAME=fedora25.localdomain
export ORACLE_UNQNAME=cdb1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.2.0.1/db_1
export ORACLE_SID=cdb1

export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

  • Installation


Log into the oracle user. If you are using X emulation then set the DISPLAY environmental variable.

DISPLAY=<machine-name>:0.0; export DISPLAY

Start the Oracle Universal Installer (OUI) by issuing the following command in the database directory.

./runInstaller

Proceed with the installation of your choice. Ignore any warnings about the system configuration.

You can see the type of installation I performed by clicking on the links below to see screen shots of each stage.

01. Configure Security Updates

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

02. Select Install Option

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

03. Select System Class

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

04. Select Database Installation Option

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

05. Select Install Type

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

06. Typical Install Configuration

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

07. Create Inventory

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

08. Perform Prerequisite Checks

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

09. Summary

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

10. Install Product

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

11. Execute Configuration Scripts

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

12. Database Configuration Assistant

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

13. Finish

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

14. Database Express 12c Login

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

15. Database Express 12c Dashboard

Oracle Database 12c, Oracle Database Tutorials and Materials, Database Certifications

  • Post Installation


Edit the "/etc/redhat-release" file restoring the original release information.

Fedora release 25 (Twenty Five)

Edit the "/etc/oratab" file setting the restart flag for each instance to 'Y'.

cdb1:/u01/app/oracle/product/12.1.0.2/db_1:Y