Installing SLES 12
Installing SUSE Linux Enterprise Server (SLES 12)
SUSE Linux Enterprise Server 12 is a Linux operating system which focuses its attention mainly on the server, mid-range and mainframe market. SLES as it is commonly known is mainly used by larger organisations/Enterprises. SLES 12 is available to download as an evaluation. It can be downloaded for many platforms including x86, AMD64/Intel64, System Z, IBM Power and Itanium editions. The evaluation period is normally for a period of 60 days. This gives you access to the latest packages and patches. Larger evaluation periods are available for larger platforms. After the initial evaluation period, you will need to purchase a license agreement for continued support of your operating system.
To download your free evaluation iso image of SLES 12 you will need to register for an account at the following site:
Download SUSE Linux Enterprise Server 12
In the following example I will be using a 32bit x86 platform image of the operating system (SLE-12-Server-DVD-x86_64-GM-DVD1.iso). Note only DVD1 is needed. Once you have downloaded your SLES 12 iso image for your chosen platform, you will need to burn this image to a DVD or if you are using Virtualisation Software, place a copy of the image in the appropriate image directory. Software that can do the burning task can be found by searching for "dvd iso burning software" in the search box located above. Your system may already have the necessary CD/DVD burning software installed such as "Brasero, K3B, Nero, CDBurnerXP or Roxio". Once you have successfully burned your "iso" image of SLES 12 to your DVD, you will need to place the DVD into the DVD drive bay of your intended target system and reboot that system. (This example assumes you are using a x86 32bit version of the software). As your computer reboots, you will need to press the appropriate key to access your system's BIOS configuration settings. On many systems this key will be "F8", "F11" or "F12". Most systems will display the a message indicating which key needs to be pressed. Once you have access to your BIOS settings, you will need to modify the boot order of your system to boot from CD/DVD first. Once this change has been made, you can reboot your system and follow the instructions below.
Installation - SLES Installer Menu
To start your installation of SLES 12, simply highlight the installation option and then press enter. Your installation should now begin.
Language - Keyboard - License Agreement
From this screen you need to choose the Language and Keyboard layout for your system. In this example, English (UK) has been chosen for both options. These settings will be used during your installation. Before you can proceed further, you have to accept the license terms.
At the registration screen you have the choice of entering your evaluation code if you have registered, or you can skip the registration option. If you do choose to skip the registration, you will not have access to the update/patching repositories.
Skip Registration Process
If you chose to skip the registration process, you will see a pop up warning. To continue with the installation, click on "Yes".
Click on Network configuration from the Registration screen. Initially an IP address has been assigned automatically to this system by DHCP. However, if you wish to change to a static IP address follow the steps below.
Static Network Settings
From the previous screen, click on the option "Edit". Now select the option for a statically assigned IP address. Here you must provide your network details.
Network Settings - Hostname/DNS settings
At this screen you will need to provide a Hostname, Domain Name and the IP addresses of your DNS servers.
Network Settings - Specify Default Gateway
At this screen you will need to specify the gateway address and the interface to use.
Add on Product
This screen gives you the option to add extra products. Simply specify the device/location of the software. If you do not specify any additions, click "Next" to continue with the installation.
Suggested Partitioning Scheme
The next screen gives you the option to either manually configure the partitions for your disk(s). In the example, I have gone with the default suggested scheme.
Clock and Time Zone
The next screen allows you to configure your time zone by selecting your location. The "Other Setting" option allows you to configure the time and NTP options (see below)
Change Date and Time (Other Settings)
At this screen you can manually set the time or choose the option to synchronise your clock using a "NTP" server. Click "Accept" to continue with the installation.
Create New User
The following screen allows you to create an account on your system. You have the option of specifying the user to be an "Administrator". Click "Next" to continue.
From the Installation Setting screen, you can check which software has been selected for installation, specify which mode your server will boot to "Graphical/Text". You can Enable/Disable the firewall, activate/deactivate ssh. To change any of the options, click on the "Green" underline heading.
In this example, I am removing the GNOME desktop as I want to run in "Text" mode. Select or de-select the software from the list then click "OK" to return to the summary screen.
Settings should now reflect the changes made in the previous step.
If you are happy with all the options chosen, then click on the "Install" button.
The following screen will display the progress of your installation. While the software installs a slide show is displayed indicating features of SLES 12. For a more detailed look at the installation in progress, click on the "Details" tab. After a short period of time, your system will automatically reboot.
Boot from Hard Disk
To boot from your new installation, select the "Boot from Hard Drive" option. Once your system is up, you may remove the installation media from your drive.
Your system is now booting.
Congratulations, your system is now loaded and you can login with the user you created earlier.
If you choose to register your system for evaluation, you can activate this from the interactive "yast" configuration tool. At the command prompt issue the following command:
$ sudo yast
Once you have entered your password, you should see a screen similar to the one below:
From this screen select the Online Update option. You will receive a message "No update repository configured yet, Run configuration workflow now". If you choose this option, you can now enter your registration details. Once registered, you will be able to install updates and additional software.