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Don Burleson Blog 









Install RedHat 2.1 AS/ES

Oracle Application Server Tips by Burleson Consulting

Start the installation and select your language etc.  When you arrive at the Disk Partitioning screen, manually define you disk partitions using Disk Druid.  You can implement RAID 0,1,5 at this time however you must ensure that you meet the minimum disk space requirement on mount points that you will use for ORACLE_HOMEs as per the table earlier in the chapter.  Also ensure sufficient /tmp and swap space are defined.

When you get to the Network Configuration Screen, it is recommended that you assign a static IP address instead of using DHCP.  However if you require the use of DHCP you must configure the host to resolve the host name using the local loopback in the /etc/hosts file.  We will discuss this later. 

The next screen is the Firewall configuration screen.  If the server is behind a firewall then select ?No Firewall?.  If the server is not behind a firewall and you want to use the OS firewall, I recommend that you still select ?No Firewall? and configure the firewall after the application server is installed.  If the firewall is active you must ensure that the ports needed by the installer are open or the installation will have problems.  Once the installation is completed, you can get a list of used ports from the Application Server Control website and then configure the firewall.

When you get to the root password screen do not configure any other users.  Continue with the installation until you get to the Package Group selection screen.  Ensure that you include the following packages.

  • Printing Support

  • Classic X Window System

  • X Window System

  • Gnome/KDE or Both

  • Sound and Multimedia

  • Network Support

  • Network Managed Workstation

  • Utilities

  • Software Development

  • Kernel Development

  • Windows Compatibility/Interoperability

  • Advanced Server

You should uncheck all other selections.  At the bottom of the screen select the ?Select Individual Packages? and press Next.  Locate the package compat-glibc-6.2- and select it.  Also locate the Pdksh-5.2.14-13 package (do not worry if it is an earlier version at this time) and select it.  Continue with the installation selecting to have the server boot to your preferred desktop (Gnome or KDE). 

Configure RedHat 2.1 AS/ES

Update Installed Packages

When the OS reboots after the install, select the correct kernel for you system.  Log on as root and run the Red Hat update program.  First run /usr/sbin/rhn_register.  Next run the Update Agent located in the system or system-settings folder depending on if you are using Gnome or KDE.  The Update Agent will check all the installed packages against the latest versions and update any needed packages.  The Update Agent will also update the kernel to one optimized for the server processor.  It is important that you select the kernel for update, as the default is to exclude the kernel.  The first time you run the Update Agent it may take quite a while to complete.  Once the Update Agent has completed, reboot the server to begin using the updated packages. 

Verify Minimum Requirements

The next step is to verify that all packages meet the minimum requirements to install Oracle Application Server 10g. 

[root@appsvr root]# grep MemTotal /proc/meminfo
MemTotal:      1535772 kB
[root@appsvr root]# grep SwapTotal /proc/meminfo
SwapTotal:     2097136 kB
[root@appsvr root]# df ?k
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hda2             38362000   3449504  32963812  10% /
/dev/hda1               101089     22773     73097  24% /boot
none                    767884         0    767884   0% /dev/shm
/dev/hdb2             35445208   2729792  30914876   9% /u01
/dev/hdd1             38464340   1549752  34960684   5% /u02

As you can see from my example above, this server has greater than the 1 GB memory and greater that 1.5 GB of swap space.  There is also plenty of disk space for the installation of both the Infrastructure and Middle tiers.  For performance reasons you should install the Infrastructure on a separate server but for this example both the Infrastructure and the Middle tier will be installed on a single server.  Next verify that the kernel is greater than errata 25.

[root@appsvr root]# uname ?r

At the time of this install the current errata is 34.  If your kernel is not greater than 25, rerun the Update Agent and select the kernel for update.

Next we need to verify the other packages.  The easiest way to do this is to use the rpm utility.  If you pass in the ?qa parameters, rpm will list all packages installed on the server.  If you only pass in the ?q parameter you must pass in the package name (without the version number).  You can also use the grep utility to limit the return of the ?qa parameters.  Ensure that the packages are greater than the minimum required.  If you ran the Update Agent all packages should be greater than the minimum required.

[root@appsvr root]# rpm -q gcc
[root@appsvr root]# rpm -qa |grep gcc

Check each of the required packages.

[root@appsvr root]# rpm -qa |grep openmotif
[root@appsvr root]# rpm -qa |grep sysstat 
[root@appsvr root]# rpm -qa |grep libstdc
[root@appsvr root]# rpm -qa |grep pdkah 
[root@appsvr root]# rpm -qa |grep pdksh
[root@appsvr root]# rpm -qa |grep compat-glibc

The last two packages must be installed.  If rpm does not return anything for pdksh and compat-glibc, you must install them.  Neither are installed by default and both are found on the Red Hat installation disk 2 under the /RedHat/RPMS directory.   To install a package from the cdrom use the rpm utility.

rpm ?i /mnt/cdrom/RedHat/RPMS/pdksh-5.2.14-13.i386.rpm
rpm ?i /mnt/cdrom/RedHat/RPMS/compat-glibc-6.2-

After installing pdksh you can run the Update Agent to update the package to the latest errata.  Also, the errata number for these packages may be different in your distribution so ensure that you use the rpm file name from you cdrom.


This is an excerpt from "Oracle 10g Application Server Administration Handbook" by Don Burleson and John Garmany.

If you like Oracle tuning, you may enjoy the new book "Oracle Tuning: The Definitive Reference", over 900 pages of BC's favorite tuning tips & scripts. 

You can buy it direct from the publisher for 30%-off and get instant access to the code depot of Oracle tuning scripts.


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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

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