Oracle 12CR2 installation on CentOS-7

Installing Oracle-database-server-12cr2-preinstall

wget http://public-yum.oracle.com/public-yum-ol7.repo -O /etc/yum.repos.d/public-yum-ol7.repowget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracleyum clean allyum -y updateyum -y groupinstall 'X Window System'yum -y install oracle-database-server-12cR2-preinstall

Create an Oracle installation directory

mkdir -p /u01/app/oracle/product/12.2.0.1/db_1chown -R oracle:oinstall /u01chmod -R 775 /u01

Create an Oracle environment variable configuration file

mkdir /home/oracle/scriptscat > /home/oracle/scripts/setEnv.sh <<EOF# Oracle Settingsexport TMP=/tmpexport TMPDIR=\$TMPexport ORACLE_HOSTNAME=ol7-122.localdomainexport ORACLE_UNQNAME=cdb1export ORACLE_BASE=/u01/app/oracleexport ORACLE_HOME=\$ORACLE_BASE/product/12.2.0.1/db_1export ORACLE_SID=cdb1export PATH=/usr/sbin:/usr/local/bin:\$PATHexport PATH=\$ORACLE_HOME/bin:\$PATHexport LD_LIBRARY_PATH=\$ORACLE_HOME/lib:/lib:/usr/libexport CLASSPATH=\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlibEOFecho ". /home/oracle/scripts/setEnv.sh" >> /home/oracle/.bash_profile

Create an Oracle startup script, placed in /home/oracle/scripts/dbora.sh :

#!/bin/bash. /home/oracle/scripts/setenv.shexport Oraenv_ask=no. Oraenvexport oraenv_ask=yesstartup_log=/home/oracle/scripts/startup.logshutdown_log=/home/oracle/scripts/ Shutdown.logfunction Oracle_start () {# Start the Oracle Databases:echo "-------------------------------------------    ------"Date +"%T%a%d:starting Oracle Databases as part of the system up. " echo "-------------------------------------------------" ${oracle_home}/bin/sqlplus/nolog << EOF conn/as sy    SDBA startup alter pluggable database all open;    Exiteof echo "done." # Start the Listener:echo "-------------------------------------------------" date + "%T%a%d:starting Oracle Li    Steners as part of the system up. "     echo "-------------------------------------------------" ${oracle_home}/bin/lsnrctl start echo "done."    echo "-------------------------------------------------" date + "%T%a%d:finished." echo "-------------------------------------------------"}function Oracle_stop () {# Stop the Oracle Listener:echo "-------------------------------------------------" dat     E + "%T%a%d:stoping Oracle Listener as part of the system down."       echo "-------------------------------------------------" ${oracle_home}/bin/lsnrctl stop echo "done." # Stop the Oracle database:echo "-------------------------------------------------" date + "%T%a%d:stoping Ora     CLE Databases as part of the system down. echo "-------------------------------------------------" ${oracle_home}/bin/sqlplus/nolog << EOF conn/as sy    SDBA Alter pluggable database all close immediate;     Shutdown immediate exiteof echo "done."    echo "echo"-------------------------------------------------"date +"%T%a%d:finished. " echo "-------------------------------------------------"}case "Instart" echo "Starting Oracle Databases. . "Oracle_start >> $startup _log echo" Oracle Started SUCCESSFUlly. ";; Stop) echo "stoping Oracle Databases ... "Oracle_stop >> $shutdown _log echo" Oracle Stopped. "; Restart) echo "Restarting Oracle Databases ... "Oracle_stop >> $shutdown _log oracle_start >> $startup _log echo" Oracle restarted. "; status) ${oracle_home}/bin/lsnrctl status;; *) echo "Usage: $ (basename $) {start|strop|restart|status}" exit 1esacexit 0

To adjust script file permissions:

chown -R oracle.oinstall /home/oracle/scriptschmod u+x /home/oracle/scripts/*.sh

Write systemd.service service scripts, in /etc/systemd/system/oracle.service :

[Unit]Description=Oracle ServiceAfter=network.targetAfter=syslog.target[Service]User=oracleGroup=dbaType=oneshotExecStart=/home/oracle/scripts/dbora.sh startExecReload=/home/oracle/scripts/dbora.sh restartExecStop=/home/oracle/scripts/dbora.sh stopRemainAfterExit=yes[Install]WantedBy=multi-user.target

rootEXECUTE AS User:systemctl enable oracle.service
Start Oracle Universal Installations (OUI) when you're done

Oracle 12CR2 installation on CentOS-7