Oracle Linux 6 Installation

Oracle Linux Installation and Oracle Linux Support Introduction

Oracle Linux Packaging and Support Pricing

• Oracle Linux Network Support includes access to the Unbreakable Linux Network for patches, fixes and security alerts. Oracle Linux Network support does not include 24x7 global OS support. For example, Oracle Linux Network Support does not include the ability to create Service Requests (SRs) to work with Oracle support.
• Oracle Linux Basic Support includes 24x7 global OS support, access to the Unbreakable Linux Network for patches, fixes and security alerts, the Linux Management Pack (An Oracle Enterprise Manager Linux server lifecycle management Plug-in), and Oracle's OCFS2 cluster software for servers with up to two sockets.
• Oracle Linux Premier Support includes 24x7 global OS support, access to the Unbreakable Linux Network for patches, fixes and security alerts, the Linux Management Pack (An Oracle Enterprise Manager Linux server lifecycle management Plug-in), Oracle's OCFS2 cluster software, Premier backports, and Oracle Lifetime Support for servers with four or more sockets.

How to Download the Oracle Linux Installation Media

The Oracle Linux Installation media is freely available at the Software Delivery Cloud - Oracle Linux and Oracle VM portal. Access to the Software Delivery Cloud - Oracle Linux and Oracle VM portal requires an Oracle.com user account and password to authenticate into the Oracle Linux and Oracle VM Cloud Portal. If you do not already have an Oracle.com user account, visit the Oracle Linux and Oracle VM Cloud Portal, click the Sign In / Register link or button to create an Oracle.com account.

 

Figure 1 shows the Software Delivery Cloud - Oracle Linux and Oracle VM portal.

 

From the Sign In page, enter your Oracle.com user name and password, then click the Sign In button.

 

Figure 2 shows the Oracle.com Sign In page.

 

Once authenticated, accept the registration/export regulations to access to the Oracle VM and Oracle Linux Media.

 

Figure 3 shows the registration/export regulations form.

 

After completing the registration/export regulation form, you will be redirected to the Media Pack Search page. From the Media Pack Search page, select Oracle Linux from the Select a Product Pack dropdown menu. Next, select x86 64-bit or x86 32-bit from the Platform dropdown menu, then click the Go button to be taken to the Oracle Linux Media Pack download page.

 

Tip: If you do not see Oracle Linux or Oracle VM from the Select a Product Pack dropdown menu, you are not in the Oracle Linux and Oracle VM section of the Software Delivery Cloud. Click the Software Delivery Cloud link in the page header, then click the Oracle Linux/VM drop down menu to be redirected to the Oracle Linux and Oracle VM section of the Software Delivery Cloud .

 

Figure 4 shows the Media Pack Search page.

 

 

From the Oracle Linux Media Pack page, click the desired Oracle Linux Media Pack hyperlink, or select the radio button and click the Continue button to go to the download page.

 

Tip: Do not download the source DVD for an operating system installation. Oracle Linux is distributed as Open Source software, therefore the source DVD is also available along with the DVD ISO images. The source DVDs are required by the GNU GPL license.

 

Figure 5 shows the Oracle Linux x86 64 bit Media Pack page highlighting the Oracle Linux Release 6 Update 3 for x86_64 (64 Bit) ISO file download.

 

From the Oracle Linux Media Pack download page, click the Download button for the ISO file or DVD.

 

Figure 6 shows the Oracle Linux Release 6 Update 3 Media Pack for x86_64 (64 bit) download page.

 

The Oracle Linux media is delivered as ISO files for OL6 and as DVD images for OL5 and 4.

 

Oracle Linux 6 Installation using the Graphical (GUI) Mode

Oracle Linux 6 Installation using using Text Mode

Text installation mode has limited capabilities when compared to the GUI installation mode. For example, there is no support for configuring partition layout, storage methods or package selection. The installer needs at least 406 MB of RAM to work. Text mode will automatically be used if the system has less than 632 MB of RAM.

For a text mode installation, at the boot prompt below press tab and enter text after the boot line.

Figure 44

 

 

Press <Enter> to begin the Installation process. We do not need to test the installation media, so select “Skip” and then press <Enter>.

Figure 45

 

This takes us to the Welcome screen. Press <Enter> to continue.

Figure 46

 

 

Choose your language, press <Tab> to highlight the OK button then press <Enter>.

Figure 47

 

 

Select the model of your keyboard, press <Tab> to highlight the OK button, then press <Enter>.

Figure 48

 

 

Press <Tab> to highlight the Re-initialize button then press <Enter> to continue.

Figure 49

 

 

Use the default UTC (Coordinated Universal Time) if appropriate for your environment. Select your Time Zone then press <Tab> to highlight the OK button then press <Enter>.

Figure 50

 

 

Define the root password for your new VM. Press <Tab> to highlight the OK button then press <Enter>.

Figure 51

 

 

Partition using the entire drive, select the appropriate drive then press <Tab> to highlight the OK button then press <Enter>.

Figure 52

 

 

Press <Tab> to highlight the Write changes to disk button then press <Enter>.

Figure 53

 

 

The installer now creates and formats the volume group and filesystems.

Figure 54

 

 

At this point, installation of your new Oracle Linux system will begin.

Figure 55

 

 

This is a Minimal Install so only the base 226 packages are now installed.

Figure 56

 

 

Press <Tab> to highlight Reboot, then press <Enter> to reboot the system and access the logon prompt.

Figure 57

 

A text installaion does not setup networking. After the text installaion completes, access the host as root and configure the networking.

 

There are 3 steps involved:

• Configure the network interface
• Configure the hostname
• Configure DNS 

 

Networking Setup

The network interface configuration files are located in the /etc/sysconfig/network-scripts/ directory. Each network interface has a corresponding interface configuration script. Each files, i.e. /etc/sysconfig/network-scripts/ifcfg-<interface-name> provide information specific to a particular network interface. 

 

To edit or setup an interface, change directory to /etc/sysconfig/network-scripts/:

# cd /etc/sysconfig/network-scripts/

 

Edit edit or create the following files:

/etc/sysconfig/network-scripts/ifcfg-eth0: First Ethernet card configuration file

/etc/sysconfig/network-scripts/ifcfg-eth1: Second Ethernet card configuration file

 

To edit or create the first interface (eth0), type:

 

# vi ifcfg-eth0

 

Append or modify as follows:

 

DEVICE=eth0

BOOTPROTO=static

DHCPCLASS=

HWADDR=00:31:58:66:A6:5E

IPADDR=192.168.2.120

NETMASK=255.255.255.0

GATEWAY=192.168.2.254

NETWORK=192.168.2.0

ONBOOT=yes

 

Save and close the file. 

 

Define the hostname in /etc/sysconfig/network file and in /etc/hosts:

The /etc/sysconfig/network file is used by Linux to specify network configurations. By default, /etc/sysconfig/network contains the following options:

NETWORKING=boolean 

Enter a Boolean yes to enable networking, enter no to disable networking.

NETWORKING=yes

 

HOSTNAME=value 

Enter the hostname of the machine. For example:

HOSTNAME=hostname.example.com

 

As root type "vi /etc/sysconfig/network" to enter the hostname of the machine:

 

Append or modify as follows:

 

HOSTNAME=myserver.example.com

 

Save and close the file. 

 

Oracle technology products, including Oracle Enterprise Manager, rely on a properly formatted /etc/hosts file which allows the host to be pingable, with long and short host names. The host name in the /etc/hosts file must be associated with the server's public IP address.

 

The next example shows the proper syntax from a /etc/hosts file. Note that the localhost entries are one one line, and the IP address with the long and short names are on the next line.

 

127.0.0.1 localhost.localdomain localhost

192.168.4.8 servername.com servername

 

The next example shows an improperly formatted /etc/hosts file. Note that the long and short names are on the same line as the localhost entries.

 

127.0.0.1 servername.com servername localhost.localdomain localhost

192.168.4.8 servername.com servername

 

Tip: The IPv6 entries in the /etc/hosts files should be removed to aviod "Bug 13652664 : AGENT DEPLOY FAILS WITH AGENT PORT PASSED BY USER IS BUSY" with Oracle Management Agent installations:

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

 

The /etc/hosts file can be edited by the root user bu typing “vi /etc/hosts”, as shown in the next example.

 

# vi

127.0.0.1 localhost.localdomain localhost

192.168.4.8 servername.com servername

 

Save and close the file. 

 

Next, restart networking:

# service network restart

 

Setup DNS in the /etc/resolv.conf file:

The resolv.conf file is used by Linux to configure the Domain Name System (DNS) resolver library. The resolv.conf file contains directives including the default search domains used for fully qualified domain name (FQDN) completion when no domain suffix is supplied as part of a query. The resolv.conf file also contains a list of IP addresses of nameservers available to a host. For more information about this file, refer to the resolv.conf man page.

 

The /etc/resolv.conf file can be edited by the root user bu typing “vi /etc/resolv.conf”, as shown in the next example.

# vi /etc/resolv.conf

 

Setup the search prefix and the DNS Server as follows:

 

search my.domain1.com my.domain2.com

nameserver 8.8.8.8

nameserver 8.8.4.4

 

Save and close the file. Next, ping the gateway or other hosts to confirm connectivity:

 

$ ping yahoo.com

 

802.1Q Setup

The IEEE 802.1Q standard was introduced to partition large networks into smaller virtual local area networks (VLANs) using software without the need to move cables or add switch ports. The IEEE 802.1Q standard also defines how multiple layer-2 networks/VLANs can share the same physical link, this is also referred to as EtherChannel and 802.1Q trunking.

 

For example, with 802.1Q adding a network to a local area network (LAN) entails provisioning a VLAN on the switch and enabling the VLAN on the desired switch ports and/or trunks. Linux hosts that are connected to the switch ports and/or trunks could use the new VLAN by creating a VLAN interface on the desired NIC and/or bond without moving or changing the network cabling.

 

The following configuration enables 802.1q for the current session.

 

First, as root, enable the 8021q kernel module by typing "modprobe 8021q".

 

# modprobe 8021q

 

Next, create a VLAN interface on eth0, i.e. VLAN 21. Substitute 21 with the desired VLAN ID for your VLAN.  

 

# vconfig add eth0 21

 

Next, plumb the VLAN interface.

 

# ifconfig eth0.21 xx.xx.xx.xx netmask xx.xx.xx.xx up

 

To preserve the 802.1 configuration across reboots, create a /etc/sysconfig/network-scripts file for the VLAN interface.

 

# vi /etc/sysconfig/network-scripts/ifcfg-eth0.21

DEVICE=eth0.21

IPADDR=xx.xx.xx.xx

NETMASK=xx.xx.xx.xx

ONBOOT=yes

BOOTPROTO=static

USERCTL=no

VLAN=yes

 

Next, edit the /etc/sysconfig/network-scripts/eth0 file as shown in the next example:

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=none

USERCTL=no

HWADDR=00:25:90:75:3C:2F

 

Once the /etc/sysconfig/network-scripts file is created, restart the network service to load the interface.

 

# service network restart

 

Disable IPv6

Even if IPv6 is not being used, IPv6 can still cause problems such a duplicate addresses with many Oracle technology products. For example, IPv6 uses a dual stack protocol format that runs IPv4 and IPv6 at the same time. IPv6 creates an IPv6 interface for each IPv4 interface. WebLogic and many other Oracle technologies see the IPv6 interfaces as duplicate address. If IPv6 is not being used, a best practice is to disable IPv6.

 

The first step to desable IPv6 is to create a new file /etc/modprobe.d/ECS.conf containing:

alias net-pf-10 off

alias ipv6 off

 

Next, edit /etc/sysconfig/network and add the following line:

NETWORKING_IPV6=off

 

Next, type chkconfig ip6tables off

 

Finally, remove the IPv6 entries in the /etc/hosts file to aviod "Bug 13652664 : AGENT DEPLOY FAILS WITH AGENT PORT PASSED BY USER IS BUSY" with Oracle Management Agent installations. The next example shows the Pv6 entries in the /etc/hosts file that should be removed.

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

 

iptables

iptables is a userspace firewall application used to configure the Linux IPv4 and IPv6 packet filtering rulesets. iptables is installed and enabled by default on Oracle Linux with a default policy and ruleset in /etc/sysconfig/iptables. iptables rules can be configured at the command line as well as with the system setup utility, i.e. "/usr/bin/setup".

 

Host firewalls, for example iptables, are a fundamental part of an information security program. If your information security program requires host firewalls, a best practice is to configure host firewalls during the last phase of the Oracle deployment.

 

To open the necessary ports in iptables, as root edit the /etc/sysconfig/iptables file and add the desired iptables rules. The next example show the iptables rules from a default Oracle Linux installation.

 

*filter

:INPUT ACCEPT [1:52]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [1:148]

-A INPUT -p tcp -m state --state NEW -m tcp --dport 10000 -j ACCEPT

COMMIT

 

The next example shows the iptabes rules from a Oracle Linux host with an Oracle Database that allows a SQL client with IP address 192.168.30.101 to communicate with the Database. 

 

*filter

:INPUT ACCEPT [0:0]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [0:0]

-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

-A INPUT -p icmp -j ACCEPT

-A INPUT -i lo -j ACCEPT

-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT

# What: oracle database: permit SQL*Net traffic from client

-A INPUT -m state --state NEW -m tcp -p tcp -s 192.168.30.101 --dport 1521 -j ACCEPT

# End of modifications for oracle database

-A INPUT -j REJECT --reject-with icmp-host-prohibited

-A FORWARD -j REJECT --reject-with icmp-host-prohibited

COMMIT

 

iptables can be disabled by typing the following command as root.

# service iptables stop && service ip6tables stop && chkconfig iptables off && chkconfig ip6tables off

 

iptables can be re-inabled by typing the following command as root.

# service iptables start && service ip6tables start && chkconfig iptables on && chkconfig ip6tables on

 

SELinux

Security Enhanced Linux (SELinux) is a default Linux feature that offers mandatory access controls, using Linux kernel security modules (LSM) along with user-space tools. Starting with Oracle Database 11g Release 2 (11.2), Security Enhanced Linux is supported for Oracle Linux 4, Red Hat Enterprise Linux 4, Oracle Linux 5, and Red Hat Enterprise Linux 5. Security Enhanced Linux is not supported for the Oracle Enterprise Manager 12c Oracle Management Service.

 

Mandatory access controls, for example Security Enhanced Linux, may be a part of your organizations information security program. If your information security program requires mandatory access controls for the 12c Oracle Management Repository, a best practice is to configure Security Enhanced Linux during the last phase of the Enterprise Manager deployment.

 

To confirm the status of SELinux, as root type sestatus as shown in the next example.

# sestatus

SELinux status:                 disabled

 

The above example shows a host with SELinux disabled.

 

Security Enhanced Linux can be temporarily disabled by typing "echo 0 > /selinux/enforce", as root. Security Enhanced Linux can be re-enabled by typing "echo 1 > /selinux/enforce", as root.

 

Security Enhanced Linux can be permanently disabled by changing the "SELINUX=enforcing" entry to "SELINUX=disabled" in the "/etc/selinux/config" file. Security Enhanced Linux can be re-enabled by changing the "SELINUX=disabled" entry to "SELINUX=enforcing" in the "/etc/selinux/config" file. A re-boot is required after changing the "SELINUX=” value to enable to new settings.

 

SSH and X11 Forwarding

Installing the Oracle Enterprise Manager 12c components using the Oracle Universal Installer (OUI) GUI requires local or remote access to the server' console or a remote X Windows (X11) session. Please note that the only software requirements on the Linux Oracle Enterprise Manager host for remote X Windows (X11) sessions is the xauth RPM package. The xauth RPM package handles the X11 forwarding authentication. X-windows and xhost are not required on the Linux Oracle Enterprise Manager host for remote X Windows (X11) sessions. 

 

SSH and X11 forwarding enables the redirection of an X11 session from a remote Oracle Linux machine to a local desktop. For example, from a local desktop, ssh to a remote Oracle Linux server using X11 forwarding and run the Oracle Universal Installer, i.e. by typing “./runInstaller”. The Oracle Universal Installer will be displayed on the local desktop and the Oracle Enterprise Manager 12c components can be installed on the remote Oracle Linux server.  
 
On the Oracle Linux server, enable X11 forwarding in the /etc/ssh/sshd_config by adding "ForwardX11 yes" to the file as shown in the next example.
 
Change
#X11Forwarding no
to
X11Forwarding yes
 
Once the "ForwardX11 yes" entry has been added to the /etc/ssh/sshd_config file, restart ssh by typing "service sshd restart" to enable X11 forwarding. With X11 forwarding enabled, the Oracle Universal Installer (OUI) GUI can be exported from the Oracle Linux server to your local desktop.  

 

Tip: To aviod X11 challanges install the xauth and xorg-x11-apps RPMs on the Linux host. To check for the RPMs, as root type, rpm -qa | grep -i xauth and rpm -qa | grep -i xorg-x11-apps. To install xauth and the xorg-x11-apps RPMs, type yum -y install xorg-x11-apps xauth. 

 
To enable X11 forwarding from a Linux desktop, use the "-X" switch with ssh. For example, type "ssh -X oracle@<ORACLE LINUX SERVER>" to create a ssh tunnel with X11 forwarding. Do not forget that -X enables X11 forwarding, and -x actually disables X11 forwarding. Also, using the su command within a SSH session with X11 forwarding breaks X11 authentication.

 

To test remote X Windows (X11), open a new ssh session with X11 forwarding enabled (ssh -X user@servername), and type xclock. The xclock application should open on your desktop. xclock is an X window client application that is included in the xorg-x11-apps RPM package. xclock is often used to test remote X Windows (X11) sessions.

 

Tip: To troubleshoot ssh connections, use ssh verbose mode, i.e. ssh -v -v -X user@servername

 

If your using a Windows PC, a PC X Server like XMing is required to run an X Windows session, along with an ssh client like putty that supports X11 forwarding.

 

OS Watcher Black Box Setup

OS Watcher Black Box (oswbb) is a utility that uses native Linux commands and shell scripts to collect and archive metrics for diagnostics and performance troubleshooting. OS Watcher Black Box operates as a set of background processes that collect and archive data on a regular basis, using ps, top, mpstat, iostat, netstat, traceroute and vmstat. OS Watcher Black Box is comprised of three components:

1. oswbb: a shell script that collects and archives data

2. oswbba: a java utility with a GUI used to analyze oswbb data with charts and graphs

3. oswbb-service-1.1.5-1.noarch.rpm: The init script to automatically start OS Watcher Black Box

 

OS Watcher Black Box (oswbb & oswbba) can be downloaded via My Oracle Support document ID 301137.1: OSWatcher Black Box (Includes: [Video]) [ID 301137.1]. The init script (oswbb-service-1.1.5-1.noarch.rpm) to automatically start OS Watcher Black Box can be downloaded via My Oracle Support document ID 580513.1: How To Start OSWatcher Black Box Every System Boot [ID 580513.1]

Tip: OSW is one of Oracle support's primary tool for working Linux Service Requests (SRs). To expedite your Linux SRs, always include the OSW archive files from each Linux Server.

 

OS Watcher Black Box Installation and Setup
Once you have downloaded the OS Watcher Black box tar file and the oswbb-service, copy the tar file and the RPM file to each Linux Server and untar the file in the directory where you would like to run OS Watcher Black Box, i.e. /opt, and install the RPM.

 

The next example shows how to install OS Watcher Black Box. Substitute path_to_the_oswbb_directory with the directory name you would like to place and run OS Watcher Black Box. As root type:

# tar xvf oswbb601.tar -C path_to_the_oswbb_directory, i.e. tar xvf oswbb601.tar -C /opt

 

Next, chown the oswbb directoty to root, chown -R /opt/oswbb.

 

Next, install the RPM by typing rpm -ivh oswbb-service-1.1.5-1.noarch.rpm. The oswbb-service RPM package adds an init script with the osw service to run the OS Watcher Black Box at system boot, and to stop it down gracefully at system shutdown. OS Watcher Black Box can be started and stoped using the standard Linux init scripts:

# /sbin/chkconfig oswbb on

The oswbb-service RPM package automatically configures the osw service to start at runlevel 3, 5 and 5. The next example shows the default runlevels for the oswatcher service.

# chkconfig --list |grep oswatcher
oswatcher       0:off   1:off   2:on    3:on    4:on    5:on    6:off

OS Watcher Black Box can be started by typing:

# /sbin/service oswbb start

OS Watcher Black Box can be stoped by typing:

# /sbin/service oswbb stop

 

The last step is to edit the OS Watcher Black Box configuration file with your enviromentail settings. The OS Watcher Black Box configuration file is located at /etc/oswbb.conf.

 

The next example shows the default OS Watcher Black Box settings. The bold text below should be edited to meet your environmental requirements.

 

# cat /etc/oswbb.conf

# Set OSW_HOME to the directory where your OSWatcher tools are installed

OSW_HOME='/opt/osw'

# Set OSW_INTERVAL to the number of seconds between collections

OSW_INTERVAL='60'

# Set OSW_RETENTION to the number of hours logs are to be retained

OSW_RETENTION='48'

# Set OSW_USER to the owner of the OSWHOME directory

OSW_USER='root'

# Set OSW_COMPRESSION to the desired compression scheme

OSW_COMPRESSION='gzip'

The OSW_HOME directive controls the {OSWHOME} directory. {OSWHOME} is where the oswatcher logs are kept. For example, the default OSW_HOME=/opt/osw creates the /opt/ows directory for the log files. The OSW_INTERVAL directive controls the interval in seconds between statistics collections. The default OSW_INTERVAL='60' should not be modified, unless requested by Oracle support. The OSW_RETENTION='48' directive controls the retention policy in hours of the log files in the {OSWHOME}/archive directory. 
 
The OSW log files are saved in the following directories:

{OSWHOME}/archive/
oswiostat
oswmeminfo
oswmpstat
oswnetstat
oswprvtnet
oswps
oswslabinfo
oswtop
oswvmstat

 

Linux Patch Management using the Oracle Unbreakable Linux Network

Before an Oracle Linux host can be regsistered and patched from the Oracle Unbreakable Linux Network, Oracle’s GPG key must be imported using the rpm command. To import the Oracle’s GPG key, as root type “rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY”.

The Unbreakable Linux Network registration requires an Oracle Single Sign-on account and a valid customer service identifier (CSI). Before registering the yum server, visit the Unbreakable Linux Network, sign in, or create an Oracle Single Sign-on account, then sign in to the Unbreakable Linux Network portal.

 

Tip: If the RPM-GPG-KEY is not in the /etc/pki/rpm-gpg/ directory, locate the file and use the correct path to import the GPG key. For example, as root, type "find / -name RPM-GPG-KEY -print" to locate the RPM-GPG-KEY file.

 

Once the GPG key has been imported, the Linux host can be registered at the Oracle Unbreakable Linux Network from the command line or using a X Windows application. Linux 6 systems use the "uln_register" command as root to access the registration screen. The registration process requires you to enter your Unbreakable Linux Network associated Oracle Single Sign-on user name and password and a valid Oracle Linux Support Identifier number (CSI).

 

Oracle Linux 6 systems use the “--proxy” option to specify a http proxy, i.e. “# uln_register --proxy=<HOST NAME>:<PORT NUMBER> “. If your proxy server requires authentication, use the “--proxyUser” and “--proxyPassword” to add a username and password, i.e “# uln_register –proxy=<HOST NAME>:<PORT NUMBER> --proxyUser=<USER NAME> --proxyPassword=<PASSWORD>”

 

List 4 shows the six steps to register a Linux host with the Oracle Unbreakable Linux Network:

1.      Review the Unbreakable Linux Privacy Statement

2.      Register a User Account

3.      Register a System Profile—Hardware

4.      Register a System Profile—Packages

5.      Send Profile Information to the Unbreakable Linux Network

6.      Finished Registration

 

The following examples walk through the six steps to register a Linux host with the Oracle Unbreakable Linux Network.

 

Step 1. Review the Unbreakable Linux Privacy Statement

From the Review the Unbreakable Linux Privacy Statement screen use the Alt key to select the Next tab, once the Next tab is selected press the Enter key to proceed.  

 

Figure 1 shows the Review the Unbreakable Linux Privacy Statement screen.

Step 2. Register a User Account

On the Register a User Account screen, enter your  your Unbreakable Linux Network associated Oracle Single Sign-on User name, Password, Password confirmation and a valid Oracle VM CSI number. Use the Alt key to select the Next tab, and then press the Enter key to proceed.

 

Figure 2 shows the Register a User Account screen.

 

Step 3. Register a System Profile—Hardware

On the Register a System Profile—Hardware screen, accept the defaults and use the Alt key to select the Next tab. Once the Next tab is selected, press the Enter key to proceed.

 

Note: The information gathered from the system profile step is saved in your user profile at the Oracle Unbreakable Linux Network. 

 

Figure 3 shows the Register a System Profile—Hardware screen.

 

Step 4. Register a System Profile— Packages

On the Register a System Profile—Packages screen, accept the defaults and use the Alt key to select the Next tab. Once the Next tab is selected, press the Enter key to proceed.

 

Figure 4 shows the Register a System Profile—Packages screen.

 

Step 5. Send Profile Information to the Unbreakable Linux Network

From the Send Profile Information to the Unbreakable Linux Network screen, accept the defaults and use the Alt key to select the Next tab. Once the Next tab is selected, press the Enter key to proceed.

 

Figure 5 shows the Send Profile Information to the Unbreakable Linux Network screen.

 

Step 6 Finished Registration

On the Finished Registration screen, accept the defaults and use the Alt key to select the Next tab. Once the Next tab is selected, press the Enter key to proceed.

 

Figure 6 shows the Finished Registration screen.

 

The Oracle Linux host has been successfully registered.

 

Next, type “yum update -y” to patch the host.

 

Linux Patch Management with Free Updates and Errata from Oracle

• Full indemnification against intellectual property claims.  Remember the SCO lawsuits?
• Use of the Oracle Enterprise Manager 12c Systems Management Plug-in for Linux for provisioning, patching, management and monitoring.  The Systems Management Plug-in for Linux has feature parity with Red Hat Satellite Server.
• Access to additional Oracle software channels on the Unbreakable Linux Network (ULN).
• The ability to create Support Requests with Oracle' World Class support organization.

How to Uninstall or Remove Oracle Linux

• Boot the system using data destruction application like Darik's Boot and Nuke (DBAN) and wipe all of the disks.
• Delete all the files on the disks, i.e. type “rm -rf /” as root.
• Format or delete the partitions.
• Uninstall the bootloader.
• Install another operating system on top of Oracle Linux or Red Hat Enterprise Linux.