Install Oracle 11g Vmware Linux Free

08.12.2019

Install Oracle 11g Vmware Linux Free

Vmware Linux Download
Vmware Linux Download Free
Install Oracle 11g Vmware Linux Free Download
Oracle 11g Installation Guide

8i 9i 10g 11g 12c 13c 18c 19c Misc PL/SQL SQL RAC WebLogic Linux

These steps to install Oracle Database 11g release 2 (Oracle version 11.2.0) on a server with Red Hat Enterprise Linux and an x86_64 hardware platform, the process will go very smoothly for you. Things should go nearly as smoothly if you use another Linux distribution certified by Oracle or another hardware platform such as x86. Check the free space of the mount points where we are installing oracle software and the database files. Check the linux kernel version, the kernel version for installing oracle 11gR2 should be equal to or greater than 2.6.18. We are going to install Oracle Linux 7 on VMware Workstation 12. Oracle Linux, formerly known as Oracle Enterprise Linux, is a Linux distribution based on Red Hat Enterprise Linux (RHEL).

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This article describes the installation of Oracle Database 11g release 2 (11.2 64-bit) RAC on Linux (Oracle Enterprise Linux 5 64-bit) using VMware Server 2 with no additional shared disk devices.

Oracle Installation Prerequisites

I no longer use VMware Server. Since this article was written I've switched to VirtualBox as my main virtualization solution for testing installations.

Introduction

One of the biggest obstacles preventing people from setting up test RAC environments is the requirement for shared storage. In a production environment, shared storage is often provided by a SAN or high-end NAS device, but both of these options are very expensive when all you want to do is get some experience installing and using RAC. A cheaper alternative is to use a FireWire disk enclosure to allow two machines to access the same disk(s), but that still costs money and requires two servers. A third option is to use VMware Server to fake the shared storage.

Using VMware Server you can run multiple Virtual Machines (VMs) on a single server, allowing you to run both RAC nodes on a single machine. In addition, it allows you to set up shared virtual disks, overcoming the obstacle of expensive shared storage.

Before you launch into this installation, here are a few things to consider.

The finished system includes the host operating system, two guest operating systems, two sets of Oracle Grid Infrastructure (Clusterware + ASM) and two Database instances all on a single server. As you can imagine, this requires a significant amount of disk space, CPU and memory. I completed this installation on a Quad-Core processor with 8G of memory, so don't expect to work on a low spec machine.
Following on from the last point, the VMs will each need 2G of RAM, preferably 3-4G if you don't want the VM to swap like crazy. As you can see, 11gR2 RAC requires much more memory than 11gR1 RAC. Don't assume you will be able to run this on a small PC or laptop. You won't.
This procedure provides a bare bones installation to get the RAC working. There is no redundancy in the Grid Infrastructure installation or the ASM installation. To add this, simply create double the amount of shared disks and select the 'Normal' redundancy option when it is offered. Of course, this will take more disk space.
During the virtual disk creation, I always choose not to preallocate the disk space. This makes virtual disk access slower during the installation, but saves on wasted disk space.
This is not, and should not be considered, a production-ready system. It's simply to allow you to get used to installing and using RAC.
The Single Client Access Name (SCAN) should really be defined in the DNS or GNS and round-robin between one of 3 addresses, which are on the same subnet as the public and virtual IPs. In this article I've defined it as a single IP address in the '/etc/hosts' file, which is wrong and will cause the cluster verification to fail, but it allows me to complete the install without the presence of a DNS. This approach will not work for 11.2.0.2 onward, where you must use the DNS.
The virtual machines used are only given 2Gig of swap, which causes a prerequisite check failure, but doesn't prevent the installation working. If you want to avoid this, define 3+Gig of swap.
This article uses the 64-bit versions of Oracle Enterprise Linux and Oracle 11g Release 2.

Download Software

Download the following software.

VMware Server Installation

Regardless of the host OS, the setup of the virtual machines should be similar.

First, install the VMware Server software. On Linux you do this with the following command as the root user.

Then finish the configuration by running the vmware-config.pl script as the root user. Most of the questions can be answered with the default response by pressing the return key. An example of the output can be seen here.

The web-based VMware Intrastructure Web Access Console is started by issuing the command 'vmware' at the command prompt, or by pointing your browser to one of the two following URLs depending on whether you need Secure HTTP or not.

http://machine-name:8222
https://machine-name:8333

If you are using Secure HTTP, your browser may fail due to the self-signed certificate. In Firefox you can solve this by clicking the 'Or you can add an exception..' link on the failure page.

On the resulting page, click the 'Add Exception..' button.

On the 'Add Security Exception' page, click the 'Get Certificate' button, then click the 'Confirm Security Exception' button.

You are then presented with the web-based login screen.

Log in with the user specified during the config stage and you are presented with the VMware Intrastructure Web Access Console.

The VMware Server is now installed and ready to use.

Virtual Machine Setup

Now we must define the two virtual RAC nodes. We can save time by defining one VM, then cloning it when it is installed.

Click the 'Virtual Machine > Create Virtual Machine' menu option, or click the 'Create Virtual Machine' link on the bottom right of the console.

Enter the name 'RAC1' and accept the standard datastore by clicking the 'Next' button.

Select the 'Linux operating system' option, and set the version to 'Red Hat Enterprise Linux 5 (64-bit)', then click the 'Next' button.

Enter the required amount of memory and number of CPUs for the virtual machine, then click the 'Next' button. You should enter a minimum of 2048MB of memory.

Click on the 'Create a New Virtual Disk' link or click the 'Next' button.

Set the disk size to '20 GB' and click the 'Next' button.

Click the 'Add a Network Adapter' link or click the 'Next' button.

Select the 'Bridged' option and click the 'Next' button.

Click the 'Use a Physical Drive' link, or click the 'Next' button.

Accept the DVD properties by clicking the 'Next' button.

Click the 'Don't Add a Floppy Drive' link.

Click the 'Add a USB Controller' link, or click the 'Next' button.

Click the 'Finish' button to create the virtual machine.

Highlight the 'RAC1' VM in the 'Inventory' pane, then click the 'Add Hardware' link in the 'Commands' section to the right.

Click the 'Network Adapter' link.

Select the 'Bridged' option and click the 'Next' button.

Click the 'Finish' button.

The virtual machine is now configured so we can start the guest operating system installation.

Guest Operating System Installation

Place the first OEL 5 disk in the DVD drive and start the virtual machine by clicking the play button on the toolbar.

Click on the 'Console' tab. If you have not previously installed the VMware browser plugin you will be prompted to do so. If it is already present, simply click on the black pane to the right to open a new console window.

The resulting console window will contain the OEL boot screen.

Continue through the OEL 5 installation as you would for a normal server. A general pictorial guide to the installation can be found here. More specifically, it should be a server installation with a minimum of 2G swap (3-4G if you want to avoid warnings), firewall and SELinux disabled and the following package groups installed:

GNOME Desktop Environment
Editors
Graphical Internet
Text-based Internet
Development Libraries
Development Tools
Server Configuration Tools
Administration Tools
Base
System Tools
X Window System

To be consistent with the rest of the article, the following information should be set during the installation.

hostname: rac1.localdomain
IP Address eth0: 192.168.2.101 (public address)
Default Gateway eth0: 192.168.2.1 (public address)
IP Address eth1: 192.168.0.101 (private address)
Default Gateway eth1: none

You are free to change the IP addresses to suit your network, but remember to stay consistent with those adjustments throughout the rest of the article.

Oracle Installation Prerequisites

Perform either the Automatic Setup or the Manual Setup to complete the basic prerequisites. The Additional Setup is required for all installations.

Automatic Setup

Drager evita xl operators manual. If you plan to use the 'oracle-validated' package to perform all your prerequisite setup, follow the instructions at http://public-yum.oracle.com to setup the yum repository for OL, then perform the following command.

All necessary prerequisites will be performed automatically.

It is probably worth doing a full update as well, but this is not strictly speaking necessary.

Manual Setup

If you have not used the 'oracle-validated' package to perform all prerequisites, you will need to manually perform the following setup tasks.

In addition to the basic OS installation, the following packages must be installed whilst logged in as the root user. This includes the 64-bit and 32-bit versions of some packages.

Add or amend the following lines to the '/etc/sysctl.conf' file.

Run the following command to change the current kernel parameters.

Add the following lines to the '/etc/security/limits.conf' file.

Add the following lines to the '/etc/pam.d/login' file, if it does not already exist.

Create the new groups and users.

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

Additional Setup

Perform the following steps whilst logged into the 'ol5-112-rac1' virtual machine as the root user.

Set the password for the 'oracle' user.

Install the following package from the Oracle grid media after you've defined groups.

If you are not using DNS, the '/etc/hosts' file must contain the following information.

The SCAN address should not really be defined in the hosts file. Instead is should be defined on the DNS to round-robin between 3 addresses on the same subnet as the public IPs. For this installation, we will compromise and use the hosts file. This may cause problems if you are using 11.2.0.2 onward.

If you are using DNS, then only the first line needs to be present in the '/etc/hosts' file. The other entries are defined in the DNS, as described here. Having said that, I typically include all but the SCAN addresses.

Change the setting of SELinux to permissive by editing the '/etc/selinux/config' file, making sure the SELINUX flag is set as follows.

Alternatively, this alteration can be done using the GUI tool (System > Administration > Security Level and Firewall). Click on the SELinux tab and disable the feature.

If you have the Linux firewall enabled, you will need to disable or configure it, as shown here or here. The following is an example of disabling the firewall.

Either configure NTP, or make sure it is not configured so the Oracle Cluster Time Synchronization Service (ctssd) can synchronize the times of the RAC nodes. If you want to deconfigure NTP do the following.

If you want to use NTP, you must add the '-x' option into the following line in the '/etc/sysconfig/ntpd' file.

Then restart NTP.

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

Create a file called '/home/oracle/grid_env' with the following contents.

Create a file called '/home/oracle/db_env' with the following contents.

Once the '/home/oracle/.bash_profile' has been run, you will be able to switch between environments as follows.

We've made a lot of changes, so it's worth doing a reboot of the VM at this point to make sure all the changes have taken effect.

Install VMware Client Tools

On the web console, highlight the 'RAC1' VM and click the 'Install VMware Tools' link and click the subsequent 'Install' button.

In the RAC1 console, right-click on the 'VMwareTools*.rpm' file and select the 'Open with 'Software Installer' option.

Click the 'Apply' button and accept the warning by clicking the subsequent 'Install Anyway' button.

Next, run the 'vmware-config-tools.pl' script as the root user.

Accept all the default settings and pick the screen resolution of your choice. Ignore any warnings or errors. The VMware client tools are now installed.

Issue the 'vmware-toolbox' command as the root user. On the subsequent dialog, check the 'Time synchronization..' option and click the 'Close' button.

Reboot the server before proceeding. After the reboot, it is possible the monitor will not be recognised. If this is the case don't panic. Follow the instructions provided on the screen and reconfigure the monitor setting, which will allow the XServer to function correctly.

Create Shared Disks

Shut down the RAC1 virtual machine using the following command.

Create a directory on the host system to hold the shared virtual disks.

On the VMware Intrastructure Web Access Console, click the 'Add Hardware' link.

Click the 'Hard Disk' link, or click the 'Next' button.

Click the 'Create New Virtual Disk' link, or click the 'Next' button.

Set the size to '10 GB' and the location to '[standard] shared/asm1.vmdk'.

Expand the 'Disk Mode' section and check the 'Independent' and 'Persistent' options. Expand the 'Virtual Device Node' section and set the adapter to 'SCSI 1' and the device to '1', then click the 'Next' button.

Click the 'Finish' button to add the new virtual disk.

Repeat the previous hard disk creation steps 4 more times, using the following values.

File Name: [standard] shared/asm2.vmdk
Virtual Device Node: SCSI 1:2
Mode: Independent and Persistent
File Name: [standard] shared/asm3.vmdk
Virtual Device Node: SCSI 1:3
Mode: Independent and Persistent
File Name: [standard] shared/asm4.vmdk
Virtual Device Node: SCSI 1:4
Mode: Independent and Persistent
File Name: [standard] shared/asm5.vmdk
Virtual Device Node: SCSI 1:5
Mode: Independent and Persistent

At the end of this process, the virtual machine should look something like the picture below.

Edit the contents of the '/u01/VM/RAC1/RAC1.vmx' file using a text editor, making sure the following entries are present. Some of the tries will already be present, some will not.

Start the RAC1 virtual machine by clicking the 'Play' button on the toolbar, then start the console as before. When the server has started, log in as the root user so you can partition the disks. The current disks can be seen by issuing the following commands.

Use the 'fdisk' command to partition the disks sdb to sdf. The following output shows the expected fdisk output for the sdb disk.

In each case, the sequence of answers is 'n', 'p', '1', 'Return', 'Return', 'p' and 'w'.

Once all the disks are partitioned, the results can be seen by repeating the previous 'ls' command.

Determine your current kernel.

Download the appropriate ASMLib RPMs from OTN. In this case we installed the last two from the media, so we just need the first package. For RHEL we would need all three of the following.

Install the packages using the following command.

Configure ASMLib using the following command.

Load the kernel module using the following command.

If you have any problems, run the following command to make sure you have the correct version of the driver.

Mark the five shared disks as follows.

It is unnecessary, but we can run the 'scandisks' command to refresh the ASM disk configuration.

We can see the disk are now visible to ASM using the 'listdisks' command.

The shared disks are now configured for the grid infrastructure.

Clone the Virtual Machine

The current version of VMware Server does not include an option to clone a virtual machine, but the following steps illustrate how this can be achieved manually.

Shut down the RAC1 virtual machine using the following command.

Copy the RAC1 virtual machine using the following command.

Edit the contents of the '/u01/VM/RAC2/RAC1.vmx' file, making the following change.

Ignore discrepancies with the file names in the '/u01/VM/RAC2' directory. This does not affect the action of the virtual machine.

In the VMware Infrastructure Web Access Console, select the 'Virtual Machine > Add Virtual Machien to Inventory' menu options and browse for the '/u01/VM/RAC2/RAC1.vmx' file. Once opened, the RAC2 virtual machine is visible on the console.

Start the RAC2 virtual machine by clicking the 'Play' button on the toolbar. Select the 'I _copied it' option click the 'OK' button when prompted.

Ignore any errors during the server startup. We are expecting the networking components to fail at this point.

Log in to the RAC2 virtual machine as the root user and start the 'Network Configuration' tool (System > Administration > Network).

Remove the devices with the '%.bak' nicknames. To do this, highlight a device, deactivate, then delete it. This will leave just the regular 'eth0' and 'eth1' devices. Highlight the 'eth0' interface and click the 'Edit' button on the toolbar and alter the IP address to '192.168.2.102' in the resulting screen.

Click on the 'Hardware Device' tab and click the 'Probe' button. Then accept the changes by clicking the 'OK' button.

Repeat the process for the 'eth1' interface, this time setting the IP Address to '192.168.0.102', and making sure the default gateway is not set for the 'eth1' interface.

Click on the 'DNS' tab and change the host name to 'rac2.localdomain', then click on the 'Devices' tab.

Once you are finished, save the changes (File > Save) and activate the network interfaces by highlighting them and clicking the 'Activate' button. Once activated, the screen should look like the following image.

Edit the '/home/oracle/.bash_profile' file on the RAC2 node to correct the ORACLE_SID and ORACLE_HOSTNAME values.

Also, amend the ORACLE_SID setting in the '/home/oracle/db_env' and '/home/oracle/grid_env' files.

Start the RAC1 virtual machine and restart the RAC2 virtual machine. When both nodes have started, check they can both ping all the public and private IP addresses using the following commands.

At this point the virtual IP addresses defined in the '/etc/hosts' file will not work, so don't bother testing them.

Prior to 11gR2 we would probably use the 'runcluvfy.sh' utility in the clusterware root directory to check the prerequisites have been met. If you are intending to configure SSH connectivity using the installer this check should be omitted as it will always fail. If you want to setup SSH connectivity manually, then once it is done you can run the 'runcluvfy.sh' with the following command.

If you get any failures be sure to correct them before proceeding.

It's a good idea to take a snapshot of the virtual machines, so you can repeat the following stages if you run into any problems. To do this, shutdown both virtual machines and issue the following commands.

The virtual machine setup is now complete.

Install the Grid Infrastructure

Start the RAC1 and RAC2 virtual machines, login to RAC1 as the oracle user and start the Oracle installer.

Select the 'Install and Configure Grid Infrastructure for a Cluster' option, then click the 'Next' button.

Select the 'Typical Installation' option, then click the 'Next' button.

On the 'Specify Cluster Configuration' screen, click the 'Add' button.

Enter the details of the second node in the cluster, then click the 'OK' button.

Click the 'SSH Connectivity..' button and enter the password for the 'oracle' user. Click the 'Setup' button to to configure SSH connectivity, and the 'Test' button to test it once it is complete.

Click the 'Identify network interfaces..' button and check the public and private networks are specified correctly. Once you are happy with them, click the 'OK' button and the 'Next' button on the previous screen.

Enter '/u01/app/11.2.0/grid' as the software location and 'Automatic Storage Manager' as the cluster registry storage type. Enter the ASM password and click the 'Next' button.

Set the redundancy to 'External', select all 5 disks and click the 'Next' button.

Accept the default inventory directory by clicking the 'Next' button.

Wait while the prerequisite checks complete. If you have any issues, either fix them or check the 'Ignore All' checkbox and click the 'Next' button.

If you are happy with the summary information, click the 'Finish' button.

Wait while the setup takes place.

When prompted, run the configuration scripts on each node.

The output from the 'orainstRoot.sh' file should look something like that listed below.

The output of the root.sh will vary a little depending on the node it is run on. Example output can be seen here (Node1, Node2).

Once the scripts have completed, return to the 'Execute Configuration Scripts' screen on RAC1 and click the 'OK' button.

Wait for the configuration assistants to complete.

We expect the verification phase to fail with an error relating to the SCAN, assuming you are not using DNS.

Provided this is the only error, it is safe to ignore this and continue by clicking the 'Next' button.

Click the 'Close' button to exit the installer.

The grid infrastructure installation is now complete.

Install the Database

Start the RAC1 and RAC2 virtual machines, login to RAC1 as the oracle user and start the Oracle installer.

Uncheck the security updates checkbox and click the 'Next' button.

Accept the 'Create and configure a database' option by clicking the 'Next' button.

Accept the 'Server Class' option by clicking the 'Next' button.

Make sure both nodes are selected, then click the 'Next' button.

Accept the 'Typical install' option by clicking the 'Next' button.

Enter '/u01/app/oracle/product/11.2.0/db_1' for the software location. The storage type should be set to 'Automatic Storage Manager'. Enter the appropriate passwords and database name, in this case 'RAC.localdomain'.

Wait for the prerequisite check to complete. If there are any problems either fix them, or check the 'Ignore All' checkbox and click the 'Next' button.

If you are happy with the summary information, click the 'Finish' button.

Wait while the installation takes place.

Once the software installation is complete the Database Configuration Assistant (DBCA) will start automatically.

Once the Database Configuration Assistant (DBCA) has finished, click the 'OK' button.

When prompted, run the configuration scripts on each node. When the scripts have been run on each node, click the 'OK' button.

Click the 'Close' button to exit the installer.

The RAC database creation is now complete.

Check the Status of the RAC

There are several ways to check the status of the RAC. The srvctl utility shows the current configuration and status of the RAC database.

The V$ACTIVE_INSTANCES view can also display the current status of the instances.

If you have configured Enterprise Manager, it can be used to view the configuration and current status of the database using a URL like 'https://rac1.localdomain:1158/em'.

For more information see:

Hope this helps. Regards Tim..

Creating a VMware Workstation For Oracle Database Installation

Andy Kerber, Senior Consultant

In this article we are going to cover how to create a VMware workstation to be used to install the Oracle database software. We are going to use VMware workstation 12, and Oracle Enterprise Linux 6.7. Please note that VMware workstation is absolutely not suitable for true business applications. While it can be very useful for learning Oracle methods and techniques, it is absolutely not suitable as an enterprise (or even small business) platform for Oracle.

This article assumes that you have VMware workstation properly installed on your PC. The minimum hardware I recommend for VMware workstation is 16G RAM, 2 TB HD, and a quad core processor. My laptop has 32G RAM and my desktop has 64G RAM. Remember that you will need to run both, in order to use this virtual machine and still be able to do your regular work, so sufficient resources are critical.

The first step is to create an account on the Oracle web site. Proceed to oracle.com, and choose Sign In/Register to create an account. No payment is required.

Step 1: Download the Oracle Enterprise Linux software

After creating an account, proceed to eDelivery.oracle.com to download the Oracle Enterprise Linux software:

From there, sign in and proceed to the next screen:

Choose your product, and select the platform.

OEL 7.1 will come up as the default, choose a different version and select version 6.
For installation, the best choice is the just the OEL 6.7 DVD, V77197-01.iso

Once the download is complete, you can begin the creation of your virtual machine. It does not download as a zip file, so it is not necessary to extract any files.

Step 2: Create the Virtual Machine

Start the wizard by choosing, File->New Virtual Machine in the VMware menu. Choose a custom VM.

Hardware compatibility isn’t particularly critical, but choosing the most recent version is best.

Next, when it comes to guest operation system installation, choose the Installer disc from disk image file. Point this to the OEL installation ISO you just downloaded.

Choose a virtual machine name. This is just the name that you will see on the VMware workstation menu, so the name you choose is not critical.

Since this is on your personal computer, you do not want to dedicate a lot of resources to it. Therefore, one processor is appropriate.

For an Oracle installation, 8G RAM is really the minimum in order to get enough performance to do any kind of work at all.

If you have a home router, it is often best to use bridged networking so you can make sure that your test Oracle server has the same IP address all the time. If you are not concerned about this, you can use NAT.

Choose the default controller.

Select the disk type of SCSI.

Normally you will create a new virtual disk.

40G is the absolute minimum size for the installation. Remember you will need space for the Oracle binaries, swap space, temp space, and the Linux operating system. Therefore for best performance, allocate all disk space upon creation. Otherwise substantial time will be spent whenever the disk needs to expand.

Make sure that there is sufficient space on your hdd for the virtual disk (VMDK).

Review the configuration data, and proceed to create the virtual machine.

There will be a substantial waiting period as the hard disk is pre-allocated.

Once the disk space is allocated, the VM will boot from the OEL ISO image specified earlier.

Step 3: Install the Oracle Enterprise Linux Software

Please note that with Enterprise level systems, normally this software will be installed using a puppet (or similar tool) to ensure that each installation is the same. This manual method should be used only for this sort of personal installation.

On the next screen, it is safe to skip the media test. Note that the mouse will not work on this screen, so you will need to use the tab and space bar or tab and enter key.

On the next screen, the mouse will work again, so use it to choose ‘next’.

On the next two screens, choose ‘English’, then ‘US English’.

On the next screen, choose basic storage devices.

If you get the message below, ignore it and discard the data. Any data on the VMDK is just blank disk space that once had valid data on it.

On the screen below, choose an appropriate name. Then choose configure network.

Click on the Ethernet device, and choose edit.

If necessary, set the IPV4 settings, and check the ‘Connect automatically’ and ‘Available to all users’ boxes. Then click apply.

On the next screen, choose your time zone. I am in the central time zone, so I chose America/Chicago.

Choose a root password that you will remember and write it down.

On the following screen, choose ‘use all space’, and make sure that the ‘review and modify partitioning layout’ box is checked. The partitioning must be modified for an Oracle installation.

On the screen below, ensure that you have at least 8G swap. Note that if you have more than 8G RAM, swap should equal RAM up to 16G. At 16G RAM and more, only 16G swap is required.

Click next and write changes to disk.

Accept the defaults on the following page.

On the next screen choose database server, click on the customize now radio button, and then click next.

With servers highlighted, choose the packages shown on the right. Click on the ‘optional packages’ button.

Under optional packages, choose the packages below. This will make your eventual Oracle installation much easier.

Next, under Desktops, choose the items shown on the right: Desktop, Desktop debugging and performance, Desktop Platform, fonts, general purpose desktop, graphical administration tools, and X-Windows system.

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Next, the system will be configured and your chosen packages will be installed.

When installation is complete, you will be prompted to reboot the system.

Next, it will take you through a few more steps in order to complete installation.

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After clicking forward, accept the license if you choose (of course you cannot proceed until you accept it).

Next comes the software updates setup screens. If you have purchased Oracle Enterprise Linux you can enter that information at this time. If you have not, you will be set up with the public OEL Yum repository by default.

Oracle really wants you to sign up for the OEL network. The last time I checked, it cost about $100/year, so its not necessarily cost prohibitive. However, the price has probably changed since I last checked, so you will need to check with Oracle to confirm the cost if you are interested in paying for a license.

Skip the following screen. The Oracle database packages chosen earlier will create the Oracle user, and this article will show the activation of the Oracle user.

For data and time, choose the network synch option (if this VM will be able to access the internet). Otherwise, you can try synching with your computer (local time source), or just skipping this option.

Enable kdump if you choose, and reboot the machine.

Step 4: Complete the VM Configuration for Oracle

After reboot is completed, there are only a few steps remaining to configure the VM.

First, enable the Oracle user. The Oracle user has been created in the appropriate group and with the required privileges, but it is impossible to log in to the account. To enable the account, do the following:

Log in as root
Enter the command: passwd oracle
Enter the Oracle password
Reenter the Oracle password when prompted
At this point ,the account is enabled and the Oracle user can log in using the password you provided:

Next, still logged in as the root user, install the available updates. To do this, enter the command “yum –y update”. This command will take quite a bit of time to complete as all the available updates are installed.

. . .

Finally, install the kernel header and development kernel packages:

After the above packages are successfully installed, reboot the VM.

Step 5 is not critical, but will make the VM easier to use.