{"id":242,"date":"2015-10-07T16:03:48","date_gmt":"2015-10-07T14:03:48","guid":{"rendered":"https:\/\/www.carajandb.com\/2015\/10\/07\/oel-7-preperation-for-oracle-12c-en\/"},"modified":"2018-02-09T11:05:11","modified_gmt":"2018-02-09T10:05:11","slug":"oel-7-preperation-for-oracle-12c-en","status":"publish","type":"post","link":"https:\/\/carajandb.com\/en\/2015\/10\/07\/oel-7-preperation-for-oracle-12c-en\/","title":{"rendered":"OEL 7 Preperation for Oracle 12c"},"content":{"rendered":"<p>Since Standard Edition 2 is available by now and I already described in my previous blog how easy it is, to set up a database, the question comes up, how to install SE2 on Oracle Enterprise Linux Version 7. Who already worked with OEL 6, will notice when switching to OEL 7, that quite a bit has happened. You\u2019ll be searching the old [inlinecode]\/etc\/init.d[\/inlinecode] in vain, as now the startup of daemons and programs is managed by the command [inlinecode]systemctl[\/inlinecode]. By this the commands [inlinecode]service[\/inlinecode] and [inlinecode]chkconfig[\/inlinecode] are dropped \u2013 however I\u2019d like to mention that there are quite a few DBAs, who used to change and start the programs directly in the past. I\u2019m not going to elaborate on the command [inlinecode]systemctl[\/inlinecode], as there already are several detailed documents, with this one leading the way: <a href=\"https:\/\/access.redhat.com\/documentation\/en-US\/Red_Hat_Enterprise_Linux\/7\/html\/System_Administrators_Guide\/chap-Managing_Services_with_systemd.html\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">https:\/\/access.redhat.com\/documentation\/en-US\/Red_Hat_Enterprise_Linux\/7\/html\/System_Administrators_Guide\/chap-Managing_Services_with_systemd.html<\/a><br \/>\n<!--more--><br \/>\nAlso I\u2019m not expanding on the surface for the installation of OEL 7, it is well-made and intuitive, so a DBA should be able to quickly perform a minimal installation \u2013 and I would recommend this as a base for the Oracle database.<\/p>\n<h2>Oracle RDBMS 12c Preinstall<\/h2>\n<p>A crucial point after installing the operating system is once again the additionally needed packages. There are lots of documents and blogs listing all the single packages, I recommend, if the server has internet access, to install the Oracle 12c preinstall by YUM:<\/p>\n<pre>yum -y install oracle-rdbms-server-12cR1-preinstall \u2026<\/pre>\n<p>With this single command all the packages that are needed for the installation of Oracle database software are loaded automatically. Also the user Oracle is created and the kernel parameters are set up. Only the packages for Oracle ASM are opted out here. Who wants to use the Grid infrastructure, needs to execute this command additionally:<\/p>\n<pre>yum -y install oracleasm-support oracleasmlib oracleasm-`uname -r`<\/pre>\n<p>Furthermore I\u2019m not going to expand on the installation of Oracle GI, but confine for single instance.<\/p>\n<p>If you have got a server without direct internet access, you might want to build up a separate repository and manage the packages there. I\u2019ll describe how to do that in one of my next blogs.<\/p>\n<p>As I personally don\u2019t like the settings of the OS user [inlinecode]oracle[\/inlinecode] with the ID [inlinecode]54321[\/inlinecode] and those of the groups [inlinecode]oinstall[\/inlinecode] and [inlinecode]dba[\/inlinecode], I delete them afterwards and set them up with \u201cmy\u201d parameters.<\/p>\n<pre>userdel oracle \r\ngroupdel dba \r\ngroupdel oinstall \r\nrm -rf \/home\/oracle<\/pre>\n<p>As I try to build up a preferably consistent and expandable environment, I don\u2019t only create the \u201cnormal\u201d groups, but also the new Oracle OS groups for the \u201cspecial tasks\u201d:<\/p>\n<pre>groupadd -g 101 oinstall\r\ngroupadd -g 102 dba \r\ngroupadd -g 103 oper \r\ngroupadd -g 104 asmdba \r\ngroupadd -g 105 asmadmin \r\ngroupadd -g 106 asmoper \r\ngroupadd -g 107 backupdba \r\ngroupadd -g 108 dgdba \r\ngroupadd -g 109 kmdba<\/pre>\n<p>Now the Oracle user is created again and the user [inlinecode]oragrid[\/inlinecode] in addition \u2013 you never know\u2026<\/p>\n<pre>useradd -c \"Oracle DBA\" -d \/home\/oracle -g oinstall -G dba,oper,asmdba,backupdba,dgdba,kmdba -p oracle -s \/bin\/bash -u 1001 oracle  \r\nuseradd -c \"Oracle Grid Admin\" -d \/home\/oragrid -g oinstall -G asmdba,asmadmin,asmoper -p oragrid -s \/bin\/bash -u 1002 oragrid \r\npasswd oracle \r\npasswd oragrid<\/pre>\n<p>For the the database structure I use different mount points or directories, which I create in the next step:<\/p>\n<pre>mkdir -p \/u01\/app\/oraInventory   # Inventory \r\nmkdir -p \/u01\/app\/oracle         # Oracle DB Software (ORACLE_BASE) \r\nmkdir -p \/u01\/app\/gridbase       # Oracle GI Base Directory (GRID_BASE) \r\nmkdir -p \/u01\/app\/oragrid        # Oracle GI Software \r\nmkdir -p \/u02\/oradata            # Oracle Datafiles (if not in ASM) \r\nmkdir -p \/u03\/orabackup          # Fast Recovery Area \r\nchown -R oracle:dba \/u02\/oradata \r\nchown -R oracle:dba \/u03\/orabackup \r\nchown -R oracle:oinstall \/u01\/app\/oracle \r\nchown -R oracle:oinstall \/u01\/app\/oraInventory \r\nchown -R oragrid:oinstall \/u01\/app\/oragrid \r\nchown -R oragrid:oinstall \/u01\/app\/gridbase<\/pre>\n<p>If you don\u2019t want to copy the Oracle software to the computer, but mount it as a NFS disk, you therefore need to start and enable the following processes:<\/p>\n<pre>systemctl enable rpcbind.socket \r\nsystemctl restart rpcbind.service \r\nsystemctl start nfs-server<\/pre>\n<p>Last but not least the firewall configuration has to be adjusted or stopped:<\/p>\n<pre>systemctl stop firewalld systemctl disable firewalld<\/pre>\n<p>By that the requirements for the installation of the Oracle software (Enterprise Edition or Standard Edition) are met.<\/p>\n<h2>DOAG Training Day 2015: &#8220;Oracle 12c Database Installation and Configuration&#8221;<\/h2>\n<p>If you want to learn more about the installation and configuration of Standard Edition 2 or the Enterprise Edition, as well, visit our training at the \u201c<a href=\"http:\/\/www.doag.org\/de\/events\/konferenzen\/doag-2015\/schulungstag.html#c9814\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">DOAG Conference 2015<\/a>\u201d. Find more information (in German) here: <a href=\"http:\/\/www.doag.org\/de\/events\/konferenzen\/doag-2015\/schulungstag.html#c9814\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">http:\/\/www.doag.org\/de\/events\/konferenzen\/doag-2015\/schulungstag.html#c9814<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Since Standard Edition 2 is available by now and I already described in my previous blog how easy it is, to set up a database, the question comes up, how to install SE2 on Oracle Enterprise Linux Version 7. Who already worked with OEL 6, will notice when switching to OEL 7, that quite a bit has happened. You\u2019ll be searching the old [inlinecode]\/etc\/init.d[\/inlinecode] in vain, as now the startup of daemons and programs is managed by the command [inlinecode]systemctl[\/inlinecode]. By this the commands [inlinecode]service[\/inlinecode] and [inlinecode]chkconfig[\/inlinecode] are dropped \u2013 however I\u2019d like to mention that there are quite a [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_crdt_document":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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