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Applies to SUSE Linux Enterprise Server 15 SP1

8 Installation Steps Edit source

This chapter describes the procedure in which the data for SUSE Linux Enterprise Server is copied to the target device. Some basic configuration parameters for the newly installed system are set during the procedure. A graphical user interface will guide you through the installation. The procedure described in the following also applies to remote installation procedures as described in Chapter 11, Remote Installation. The text mode installation has the same steps and only looks different. For information about performing non-interactive automated installations, see AutoYaST Guide.

Before running the installer, read Part I, “Installation Preparation”. Depending on the architecture of your system, it describes the steps necessary to start the installation.

If you are a first-time user of SUSE Linux Enterprise Server, you should follow the default YaST proposals in most parts, but you can also adjust the settings as described here to fine-tune your system according to your preferences. Help for each installation step is provided by clicking Help.

Tip
Tip: Installation Without a Mouse

If the installer does not detect your mouse correctly, use →| for navigation, arrow keys to scroll, and Enter to confirm a selection. Various buttons or selection fields contain a letter with an underscore. Use AltLetter to select a button or a selection directly instead of navigating there with →|.

8.1 Overview Edit source

This section provides an overview of all installation steps. Each step contains a link to a more detailed description.

  1. Before the installation starts, the installer can update itself. For details, see Section 8.2, “Installer Self-Update”.

  2. The actual installation starts with choosing the language and the product. For details, see Section 8.3, “ Language, Keyboard, and Product Selection.

  3. Accept the license agreement. For details, see Section 8.4, “License Agreement”.

  4. IBM Z machines need to activate disks. For details, see Section 8.5, “IBM Z: Disk Activation”.

  5. Configure the network. This is only required when you need network access during the installation and the automatic network configuration via DHCP failed. If the automatic network configuration succeeded, this step is skipped. For details, see Section 8.6, “Network Settings”.

  6. With a working network connection you can register the machine at the SUSE Customer Center or an RMT server. For details, see Section 8.7, “Registration”.

  7. Select the modules you want to enable for the machine. This impacts the availability of system roles in the next step and packages later on. For details, see Section 8.8, “Extension and Module Selection”.

  8. You can manually add repositories. For details, see Section 8.9, “Add-On Product”.

  9. Select a role for your system. Among other things, this defines the default list of packages to install and makes a suggestion for partitioning the hard disks. For details, see Section 8.10, “System Role”.

  10. Partition the hard disks of your system. For details, see Section 8.11, “Partitioning”.

  11. Choose a time zone. For details, see Section 8.12, “Clock and Time Zone”.

  12. Create a user. For details, see Section 8.13, “Create New User”.

  13. Optionally, set a different password for the system administrator root. For details, see Section 8.14, “Authentication for the System Administrator root.

  14. In a final step, the installer presents an overview of all settings. If required, you can change them. For details, see Section 8.15, “Installation Settings”.

  15. The installer copies all required data and informs you about the progress. For details, see Section 8.16, “Performing the Installation”.

8.2 Installer Self-Update Edit source

During the installation and upgrade process, YaST can update itself to solve bugs in the installer that were discovered after the release. This functionality is enabled by default; to disable it, set the boot parameter self_update to 0. For more information, see Section 7.4.6, “Enabling the Installer Self-Update”.

Important
Important: Quarterly Media Update: Self-Update Disabled

The installer self-update is only available if you use the GM images of the Unified Installer and Packages ISOs. If you install from the ISOs published as quarterly update (they can be identified by the string QU in the name), the installer cannot update itself, because this feature has been disabled in the updated media.

Important
Important: Networking during Self-Update

To download installer updates, YaST needs network access. By default, it tries to use DHCP on all network interfaces. If there is a DHCP server in the network, it will work automatically.

If you need a static IP setup, you can use the ifcfg boot argument. For more details, see the linuxrc documentation at https://en.opensuse.org/Linuxrc.

Tip
Tip: Language Selection

The installer self-update is executed before the language selection step. This means that progress and errors which happen during this process are displayed in English by default.

To use another language for this part of the installer, use the language boot parameter if available for your architecture, for example, language=de_DE. On machines equipped with a traditional BIOS, alternatively, press F2 in the boot menu and select the language from the list.

Although this feature was designed to run without user intervention, it is worth knowing how it works. If you are not interested, you can jump directly to Section 8.3, “ Language, Keyboard, and Product Selection and skip the rest of this section.

8.2.1 Self-Update Process Edit source

The process can be broken down into two different parts:

  1. Determine the update repository location.

  2. Download and apply the updates to the installation system.

8.2.1.1 Determining the Update Repository Location Edit source

Installer Self-Updates are distributed as regular RPM packages via a dedicated repository, so the first step is to find out the repository URL.

Important
Important: Installer Self-Update Repository Only

No matter which of the following options you use, only the installer self-update repository URL is expected, for example:

self_update=https://www.example.com/my_installer_updates/

Do not supply any other repository URL—for example the URL of the software update repository.

YaST will try the following sources of information:

  1. The self_update boot parameter. (For more details, see Section 7.4.6, “Enabling the Installer Self-Update”.) If you specify a URL, it will take precedence over any other method.

  2. The /general/self_update_url profile element in case you are using AutoYaST.

  3. A registration server. YaST will query the registration server for the URL. The server to be used is determined in the following order:

    1. By evaluating the regurl boot parameter (Section 7.4.1, “Providing Data to Access an RMT Server”).

    2. By evaluating the /suse_register/reg_server profile element if you are using AutoYaST.

    3. By performing an SLP lookup. If an SLP server is found, YaST will ask you whether it should be used because there is no authentication involved and everybody on the local network could announce a registration server.

    4. By querying the SUSE Customer Center.

  4. If none of the previous attempts worked, the fallback URL (defined in the installation media) will be used.

8.2.1.2 Downloading and Applying the Updates Edit source

When the updates repository is determined, YaST will check whether an update is available. If so, all the updates will be downloaded and applied to the installation system.

Finally, YaST will be restarted to load the new version and the welcome screen will be shown. If no updates were available, the installation will continue without restarting YaST.

Note
Note: Update Integrity

Update signatures will be checked to ensure integrity and authorship. If a signature is missing or invalid, you will be asked whether you want to apply the update.

8.2.1.3 Temporary Self-Update Add-on Repository Edit source

Some packages distributed in the self-update repository provide additional data for the installer, like the installation defaults, system role definitions and similar. If the installer finds such packages in the self-update repository, a local temporary repository is created, to which those packages are copied. They are used during the installation process, but at the end of the installation, the temporary local repository is removed. Its packages are not installed onto the target system.

This additional repository is not displayed in the list of add-on products, but during installation it may still be visible as SelfUpdate0 repository in the package management.

8.2.2 Custom Self-Update Repositories Edit source

YaST can use a user-defined repository instead of the official one by specifying a URL through the self_update boot parameter. However, the following points should be considered:

  • Only HTTP/HTTPS and FTP repositories are supported.

  • Only RPM-MD repositories are supported (required by RMT).

  • Packages are not installed in the usual way: They are uncompressed only and no scripts are executed.

  • No dependency checks are performed. Packages are installed in alphabetical order.

  • Files from the packages override the files from the original installation media. This means that the update packages might not need to contain all files, only files that have changed. Unchanged files are omitted to save memory and download bandwidth.

Note
Note: Only One Repository

Currently, it is not possible to use more than one repository as source for installer self-updates.

8.3 Language, Keyboard, and Product Selection Edit source

Language, Keyboard, and Product Selection
Figure 8.1: Language, Keyboard, and Product Selection

The Language and Keyboard Layout settings are initialized with the language you chose on the boot screen. If you did not change the default, it will be English (US). Change the settings here, if necessary.

Changing the language will automatically preselect a corresponding keyboard layout. Override this proposal by selecting a different keyboard layout from the drop-down box. Use the Keyboard Test text box to test the layout. The language selected here is also used to assume a time zone for the system clock. This setting can be modified later in the installed system as described in Chapter 24, Changing Language and Country Settings with YaST.

With the Unified Installer you can install all SUSE Linux Enterprise base products:

Select a product for installation. You need to have a registration code for the respective product. In this document it is assumed you have chosen SUSE Linux Enterprise Server. Proceed with Next.

8.4 License Agreement Edit source

License Agreement
Figure 8.2: License Agreement

Read the License Agreement. It is presented in the language you have chosen on the boot screen. Translations are available via the License Language drop-down box. If you agree to the terms, check I Agree to the License Terms and click Next to proceed with the installation. If you do not agree to the license agreement, you cannot install SUSE Linux Enterprise Server; click Abort to terminate the installation.

8.5 IBM Z: Disk Activation Edit source

When installing on IBM Z platforms, the language selection dialog is followed by a dialog to configure the attached hard disks.

Disk Activation
Figure 8.3: Disk Activation

Select DASD, Fibre Channel Attached SCSI Disks (zFCP), or iSCSI for installation of SUSE Linux Enterprise Server. The DASD and zFCP configuration buttons are only available if the corresponding devices are attached. For instructions on how to configure iSCSI disks, refer to Section 14.3, “Configuring iSCSI Initiator”.

You can also change the Network Configuration in this screen by launching the Network Settings dialog. Choose a network interface from the list and click Edit to change its settings. Use the tabs to configure DNS and routing. See Section 19.4, “Configuring a Network Connection with YaST” for more details.

8.5.1 Configuring DASD Disks Edit source

Skip this step if you are not installing on IBM Z hardware.

DASD Disk Management
Figure 8.4: DASD Disk Management

After selecting Configure DASD Disks, an overview lists all available DASDs. To get a clearer picture of the available devices, use the text box located above the list to specify a range of channels to display. To filter the list according to such a range, select Filter.

Specify the DASDs to use for the installation by selecting the corresponding entries in the list. Use Select All to select all DASDs currently displayed. Activate and make the selected DASDs available for the installation by selecting Perform Action › Activate. To format the DASDs, select Perform Action › Format. Alternatively, use the YaST partitioner later as described in Section 10.1, “Using the Expert Partitioner”.

8.5.2 Configuring zFCP Disks Edit source

To use zFCP disks for the SUSE Linux Enterprise Server installation, select Configure zFCP Disks in the selection dialog. This opens a dialog with a list of the zFCP disks available on the system. In this dialog, select Add to open another dialog in which to enter zFCP parameters.

To make a zFCP disk available for the SUSE Linux Enterprise Server installation, choose an available Channel Number from the drop-down box. Get WWPNs (World Wide Port Number) and Get LUNs (Logical Unit Number) return lists with available WWPNs and FCP-LUNs, respectively, to choose from. Automatic LUN scanning only works with NPIV enabled.

When completed, exit the zFCP dialog with Next and the general hard disk configuration dialog with Finish to continue with the rest of the configuration.

8.6 Network Settings Edit source

After booting into the installation, the installation routine is set up. During this setup, an attempt to configure at least one network interface with DHCP is made. In case this attempt has failed, the Network Settings dialog launches now.

Network Settings
Figure 8.5: Network Settings

Choose a network interface from the list and click Edit to change its settings. Use the tabs to configure DNS and routing. See Section 19.4, “Configuring a Network Connection with YaST” for more details. On IBM Z this dialog does not start automatically. It can be started in the Disk Activation step.

In case DHCP was successfully configured during installation setup, you can also access this dialog by clicking Network Configuration at the SUSE Customer Center Registration and the Installation Settings step. It lets you change the automatically provided settings.

Note
Note: Network Configuration with Boot Parameters

If at least one network interface has been configured via boot parameters (see Section 7.3.2, “Configuring the Network Interface”), automatic DHCP configuration is disabled and the boot parameter configuration is imported and used.

Tip
Tip: Accessing Network Storage or Local RAID

To access a SAN or a local RAID during the installation, you can use the libstorage command line client for this purpose:

  1. Switch to a console with CtrlAltF2.

  2. Install the libstoragemgmt extension by running extend libstoragemgmt.

  3. Now you have access to the lsmcli command. For more information, run lsmcli --help.

  4. To return to the installer, press AltF7

Supported are Netapp Ontap, all SMI-S compatible SAN providers, and LSI MegaRAID.

8.7 Registration Edit source

To get technical support and product updates, you need to register and activate your product with the SUSE Customer Center or a local registration server. Registering SUSE Linux Enterprise Server at this stage also grants you immediate access to the update repository. This enables you to install the system with the latest updates and patches available.

When registering, repositories and dependencies for the modules and extensions, which you may install with the next step, are loaded from the registration server.

From this dialog, you can switch to the YaST Network Settings module by clicking Network Configuration. For details, see Section 19.4, “Configuring a Network Connection with YaST”.

If you are offline or want to skip registration, activate Skip Registration. See Section 8.7.3, “Installing without Registration” for instructions.

8.7.1 Registering Manually Edit source

To register with the SUSE Customer Center, enter your Registration Code for SUSE Linux Enterprise Server. If your organization provides a local registration server, you may alternatively register there. Activate Register System via local RMT Server and either choose a URL from the drop-down box or type in an address. Start the registration process with Next.

SUSE Customer Center Registration
Figure 8.6: SUSE Customer Center Registration
Tip
Tip: Installing Product Patches at Installation Time

After SUSE Linux Enterprise Server has been successfully registered, you are asked whether to install the latest available online updates during the installation. If choosing Yes, the system will be installed with the most current packages without having to apply the updates after installation. Activating this option is recommended.

If the system was successfully registered during installation, YaST will disable repositories from local installation media such as CD/DVD or flash disks when the installation has been completed. This prevents problems if the installation source is no longer available and ensures that you always get the latest updates from the online repositories.

8.7.2 Loading Registration Codes from USB Storage Edit source

To make the registration more convenient, you can also store your registration codes on a USB storage device such as a flash disk. YaST will automatically pre-fill the corresponding text box. This is particularly useful when testing the installation or if you need to register many systems or extensions.

Create a file named regcodes.txt or regcodes.xml on the USB disk. If both are present, the XML takes precedence.

In that file, identify the product with the name returned by zypper search --type product and assign it a registration code as follows:

Example 8.1: regcodes.txt
SLES    cc36aae1
SLED    309105d4

sle-we  5eedd26a
sle-live-patching 8c541494
Example 8.2: regcodes.xml
<?xml version="1.0"?>
<profile xmlns="http://www.suse.com/1.0/yast2ns"
 xmlns:config="http://www.suse.com/1.0/configns">
  <suse_register>
    <addons config:type="list">
      <addon>
<name>SLES</name>
<reg_code>cc36aae1</reg_code>
      </addon>
      <addon>
<name>SLED</name>
<reg_code>309105d4</reg_code>
      </addon>
      <addon>
<name>sle-we</name>
<reg_code>5eedd26a</reg_code>
      </addon>
      <addon>
<name>sle-live-patching</name>
<reg_code>8c541494</reg_code>
      </addon>
    </addons>
  </suse_register>
</profile>

Note that SLES and SLED are not extensions, but listing them as add-ons allows for combining several base product registration codes in a single file. See Section 4.3.1, “Extensions” for details.

Note
Note: Limitations

Currently flash disks are only scanned during installation or upgrade, but not when registering a running system.

8.7.3 Installing without Registration Edit source

To install the system without registration activate Skip Registration. Accept the warning with OK and proceed with Next. The installation follows the same workflow as when registering, only the step for choosing the modules and extensions differs.

Installing without Registration
Figure 8.7: Installing without Registration
Note
Note: Registering SUSE Linux Enterprise Server

Your system and extensions need to be registered to retrieve updates and to be eligible for support. If you do not register during the installation, you can do so at any time later from the running system. To do so, run YaST › Product Registration.

If you perform an installation without connecting to a registration server, you cannot register your system during the installation. Therefore you cannot receive the repository configuration for modules and extensions from the registration server. To enable a regular installation, SUSE offers a second installation medium, the SLE-15-SP1-Packages-ARCH-GM-DVD1.iso image.

To perform the installation without registration, make sure the contents of the SLE-15-SP1-Packages-ARCH-GM-DVD1.iso image can be accessed during the installation. This can be achieved by copying it to a local hard disk or a removable flash disk or by making it available in the local network. Choose a method that is supported by your hardware.

Tip
Tip: Copying Data from the SLE-15-SP1-Packages-ARCH-GM-DVD1.iso Image to a Removable Flash Disk

To copy the contents of the image available on a removable flash disk, use the following command.

tux > sudo dd if=PATH_TO_IMAGE
    of=FLASH_STORAGE_PARTITION bs=4M && sync

PATH_TO_IMAGE needs to be replaced with the relative or absolute path to this image file. FLASH_STORAGE_PARTITION needs to be replaced with the path to a partition on the flash device (usually there is just one). To identify the device, and its partition(s), insert it and use the commands shown in the example below:

root # grep -Ff <(hwinfo --disk --short) <(hwinfo --usb --short)
disk:
  /dev/sdc             General USB Flash Disk
root # fdisk -l /dev/sdc | grep -e "^/dev"
/dev/sdc1  *     2048 31490047 31488000  15G 83 Linux

In this case the command to use would be for example:

dd if=/tmp/SLE-15-SP1-Packages-ARCH-GM-DVD1.iso \
 of=/dev/sdc1 bs=4M && sync

Make sure a partition with sufficient size (8 GB or more) exists on the device. It also must not be mounted when running the dd command. Note that all data on the partition will be erased!

8.8 Extension and Module Selection Edit source

In this dialog the installer lists modules and extensions that are available for SUSE Linux Enterprise Server. Modules are components which allow you to shape the product according to your needs. They are free of charge. Extensions add functionality to your product. They are offered as subscriptions and require a registration key that is liable for costs.

The availability of certain modules or extensions depends on the product you chose in the first step of this installation. For a description of the modules and their lifecycles, select a module to see the accompanying text. More detailed information is available in the Release Notes.

The selection of modules indirectly affects the scope of the installation, because it defines which software sources (repositories) are available for installation and in the running system.

The way you select modules and extensions depends on whether you registered your system in the previous step:

8.8.1 Selecting Extensions and Modules with Registration Edit source

Extension and Module Selection
Figure 8.8: Extension and Module Selection

The following modules and extensions are available for SUSE Linux Enterprise Server:

Basesystem Module

This module adds a basic system on top of the Unified Installer. It is required by all other modules and extensions. The scope of an installation that only contains the base system is comparable to the installation pattern minimal system of previous SUSE Linux Enterprise Server versions. This module is selected for installation by default and should not be deselected.

Dependencies: None

Containers Module

Contains support and tools for containers.

Dependencies: Basesystem

Desktop Applications Module

Adds a graphical user interface and essential desktop applications to the system.

Dependencies: Basesystem

Development Tools Module

Contains compilers (including gcc) and libraries required for compiling and debugging applications. Replaces the former Software Development Kit (SDK).

Dependencies: Basesystem, Desktop Applications

Legacy Module

Helps you migrating applications from earlier versions of SUSE Linux Enterprise Server and other systems to SLES 15 SP1, by providing packages which are discontinued on SUSE Linux Enterprise. Packages in this module are selected based on the requirement for migration and the level of complexity of configuration.

This module is recommended when migrating from a previous product version.

Dependencies: Basesystem, Server Applications

Public Cloud Module

Contains all tools required to create images for deploying SUSE Linux Enterprise Server in cloud environments such as the Amazon Web Services (AWS), Microsoft Azure, Google Compute Platform, or the SUSE OpenStack Cloud.

Dependencies: Basesystem, Server Applications

Python 2 Module

SUSE Linux Enterprise 15 SP1 uses Python version 3. This module contains the Python 2 runtime and modules.

Dependencies: Basesystem

Server Applications Module

Adds server functionality by providing network services such as DHCP server, name server, or Web server. This module is selected for installation by default; deselecting it is not recommended.

Dependencies: Basesystem

SUSE Cloud Application Platform Tools Module

Adds tools allowing you to interact with a SUSE Cloud Application Platform product.

Dependencies: Basesystem

SUSE Enterprise Storage

Adds support for distributed storage with Ceph to SUSE Linux Enterprise Server. Requires a separate license key.

Dependencies: Basesystem, Server Applications

SUSE Linux Enterprise High Availability Extension

Adds clustering support for mission critical setups to SUSE Linux Enterprise Server. This extension requires a separate license key.

Dependencies: Basesystem, Server Applications

SUSE Linux Enterprise Live Patching

Adds support for performing critical patching without having to shut down the system. This extension requires a separate license key.

Dependencies: Basesystem, Server Applications

SUSE Linux Enterprise Workstation Extension

Extends the functionality of SUSE Linux Enterprise Server with packages from SUSE Linux Enterprise Desktop, like additional desktop applications (office suite, email client, graphical editor, etc.) and libraries. It allows to combine both products to create a fully featured workstation. This extension requires a separate license key.

Dependencies: Basesystem, Desktop Applications

SUSE Package Hub

Provides access to packages for SUSE Linux Enterprise Server maintained by the openSUSE community. These packages are delivered without L3 support and do not interfere with the supportability of SUSE Linux Enterprise Server. For more information refer to https://packagehub.suse.com/.

Dependencies: Basesystem

Transactional Server Module

Adds support for transactional updates. Updates are either applied to the system all together in a single transaction, or not at all. This happens without influencing the running system. If an update fails, or if the successful update is deemed to be incompatible or otherwise incorrect, it can be discarded to immediately return the system to its previous functioning state.

Dependencies: Basesystem

Web and Scripting Module

Contains packages intended for a running Web server.

Dependencies: Basesystem, Server Applications

Some modules depend on the installation of other modules. Therefore, when selecting a module, other modules may be selected automatically to fulfill dependencies.

Depending on the product, the registration server can mark modules and extensions as recommended. Recommended modules and extensions are preselected for registration and installation. To avoid installing these recommendations, deselect them manually.

Select the modules and extension you would like to install and proceed with Next. In case you have chosen one or more extensions, you will be prompted to provide the respective registration codes. Depending on your choice, it may also be necessary to accept additional license agreements.

8.8.2 Selecting Extensions and Modules without Registration Edit source

If you have skipped the registration you need to access the SLE-15-SP1-Packages-ARCH-GM-DVD1.iso ISO image via the Add-On Product dialog:

Add-On Product
Figure 8.9: Add-On Product

On the Add-On Product dialog, activate I would like to Install an Add-On Product and specify the source for the SLE-15-SP1-Packages-ARCH-GM-DVD1.iso image. Check Download repository description files to download the files describing the repository now. If deactivated, they will be downloaded after the installation starts. Proceed with Next. If you chose DVD as the data source, you will be prompted to insert the media.

On the Extension and Module Selection you need to select a product, at least one module, and optionally, one or more extensions.

Extension and Module Selection
Figure 8.10: Extension and Module Selection

The SLE-15-SP1-Packages-ARCH-GM-DVD1.iso images contain extensions and modules for all SUSE Linux Enterprise products. Make sure to only select modules and extensions listed below, otherwise you will end up with a system that may fail to install and is not covered by SUSE support.

Product

Selecting a product is mandatory. Choose SLES15-SP1 15.1-0.

Modules

Modules extend the functionality of SUSE Linux Enterprise Server and are free of charge. Installing the Basesystem-Module 15.1-0 is required. It is also recommended to install the Server-Applications-Module 15.1-0.

Note that most modules depend on other modules. These dependencies cannot be resolved automatically here. Make sure to manually solve the dependencies, otherwise the installation will fail later on. Refer to the following list for details.

Basesystem-Module 15.1-0 This module adds a basic system on top of the Unified Installer. It is required by all other modules and extensions. The scope of an installation that only contains the base system is comparable to the installation pattern minimal system of previous SUSE Linux Enterprise Server versions. Dependencies: None

Containers-Module 15.1-0 Contains support and tools for containers. Dependencies: Basesystem

Desktop-Applications-Module 15.1-0 Adds a graphical user interface and essential desktop applications to the system. Dependencies: Basesystem

Development-Tools-Module 15.1-0 Contains compilers (including gcc) and libraries required for compiling and debugging applications.

Legacy-Module 15.1-0 Contains packages that were available in previous versions of SUSE Linux Enterprise Server, but have been discontinued in SLES 15 SP1. This module is recommended when migrating from a previous SLES version. Dependencies: Basesystem, Server Applications

Public-Cloud-Module 15.1-0 Contains all tools required to create images for deploying SUSE Linux Enterprise Server in cloud environments such as the Amazon Web Services (AWS), Microsoft Azure, Google Compute Platform, or the SUSE OpenStack Cloud. Dependencies: Basesystem, Server Applications

Python 2 Module 15.1-0 SUSE Linux Enterprise 15SP 1 uses Python version 3. This module contains the Python 2 runtime and modules. Dependencies: Basesystem

Server-Applications-Module 15.1-0 Adds server functionality by providing network services such as DHCP server, name server, or Web server. Dependencies: Basesystem

Transactional Server 15.1-0 Adds support for transactional updates. Updates are either applied to the system all together in a single transaction, or not at all. This happens without influencing the running system. If an update fails, or if the successful update is deemed to be incompatible or otherwise incorrect, it can be discarded to immediately return the system to its previous functioning state. Dependencies: Basesystem

Web-Scripting-Module 15.1-0 Contains packages intended for a running Web server. Dependencies: Basesystem, Server Applications

Extensions

Choosing an extension is optional. Extensions add further core functionality to SUSE Linux Enterprise Server and require a registration code which is liable for costs.

Note that extensions depend on modules. These dependencies cannot be resolved automatically here. Make sure to manually solve the dependencies, otherwise the installation will fail later on. Refer to the following list for details.

SUSE Linux Enterprise High Availability Extension (SLEHA15-1 15.1-0).  Adds clustering support for mission critical setups to SUSE Linux Enterprise Server. Choose SLEHA15-1 15.1-0 to install it. Dependencies: Basesystem, Server Applications

SUSE Linux Enterprise Workstation Extension (SLEWE15-1 15.1-0).  Extends the functionality of SUSE Linux Enterprise Server with packages from SUSE Linux Enterprise Desktop, like additional desktop applications (office suite, email client, graphical editor, etc.) and libraries. It allows to combine both products to create a fully featured workstation. Choose SLEWE15-1 15.1-0 to install it. Dependencies: Basesystem, Desktop Applications

Warning
Warning: Forbidden Selections

Do not install any of the following selections on SUSE Linux Enterprise Server, otherwise you will end up with a system that may fail to install and is not covered by SUSE support.

  • HPC-Module 15.1-0

  • SAP-Applications-Module 15.1-0

  • SLE-15-1-HPC 15.1-0

  • SLE-15-1-RT 15.1-0

  • SLE-15-1-SAP 15.1-0

  • SLED15-1 15.1-0

When you have finished selecting modules and extensions, proceed with Next.

Add-On Product Installation
Figure 8.11: Add-On Product Installation

All modules selected for installation are listed on the Add-On Product Installation dialog. To change the list, use the Add or Delete options. Using Add you may optionally add other add-on products from different sources. Refer to Section 8.9, “Add-On Product” for details.

To proceed with the installation, choose Next. Skip the following chapter and continue reading at Section 8.10, “System Role”.

8.9 Add-On Product Edit source

The Add On Product dialog allows you to add additional software sources (so-called repositories) to SUSE Linux Enterprise Server, that are not provided by the SUSE Customer Center. Such add-on products may include third-party products and drivers or additional software for your system.

Add-On Product
Figure 8.12: Add-On Product

From this dialog, you can switch to the YaST Network Settings module by clicking Network Configuration. For details, see Section 19.4, “Configuring a Network Connection with YaST”.

Tip
Tip: Adding Drivers during the Installation

You can also add driver update repositories via the Add On Product dialog. Driver updates for SUSE Linux Enterprise are provided at http://drivers.suse.com/. These drivers have been created via the SUSE SolidDriver Program.

If you do not want to install add-ons, proceed with Next. Otherwise activate I would like to install an additional Add On Product. Specify the Media Type by choosing from CD, DVD, Hard Disk, USB Mass Storage, a Local Directory or a Local ISO Image. If network access has been configured you can choose from additional remote sources such as HTTP, SLP, FTP, etc. Alternatively you may directly specify a URL. Check Download repository description files to download the files describing the repository now. If deactivated, they will be downloaded after the installation starts. Proceed with Next and insert a CD or DVD if required.

Depending on the add-on's content, it may be necessary to accept additional license agreements.

8.10 System Role Edit source

SUSE Linux Enterprise Server supports a broad range of features. To simplify the installation, the installer offers predefined use cases which adjust the system to be installed so it is tailored for the selected scenario.

System Role
Figure 8.13: System Role

Choose the System Role that meets your requirements best. The availability of system roles depends on your selection of modules and extensions. Therefore, the dialog is omitted under the following conditions:

  • If from the enabled modules no role is suitable for the respective base product. In this case, the installation proceeds with the default settings for this product.

  • If from the enabled modules only one role is suitable for the respective base product. In this case, the installation proceeds with the settings of this particular role.

With the default selection, the following system roles are available:

Text Mode

This option installs a basic SLES without a desktop environment but with a rich set of command line tools.

Dependencies: Basesystem

Minimal

Select this role if you want a very small installation with only the basic command line tools.

Dependencies: None

KVM Virtualization Host

Select this scenario when installing on a machine that should serve as a KVM host that can run other virtual machines. /var/lib/libvirt will be placed on a separate partition and the firewall and Kdump will be disabled.

Dependencies: Basesystem, Server Applications

Xen Virtualization Host

Select this scenario when installing on a machine that should serve as a Xen host that can run other virtual machines. /var/lib/libvirt will be placed on a separate partition and the firewall and Kdump will be disabled.

Dependencies: Basesystem, Server Applications

8.11 Partitioning Edit source

8.11.1 Important Information Edit source

Warning
Warning: Read this Section Carefully

Read this section carefully before continuing with Section 8.11.2, “Suggested Partitioning”.

Custom Partitioning on UEFI Machines

A UEFI machine requires an EFI system partition that must be mounted to /boot/efi. This partition must be formatted with the FAT32 file system.

If an EFI system partition is already present on your system (for example from a previous Windows installation) use it by mounting it to /boot/efi without formatting it.

If no EFI system partition is present on your UEFI machine, make sure to create it. The EFI system partition must be a physical partition or RAID 1. Other RAID levels, LVM and other technologies are not supported. It needs to be formatted with the FAT32 file system.

Custom Partitioning and Snapper

If the root partition is larger than 16 GB, SUSE Linux Enterprise Server by default enables file system snapshots.

SUSE Linux Enterprise Server uses Snapper together with Btrfs for this feature. Btrfs needs to be set up with snapshots enabled for the root partition.

If the disk is smaller than 16 GB, all Snapper features and automatic snapshots are disabled to prevent the system partition / from running out of space.

Being able to create system snapshots that enable rollbacks requires important system directories to be mounted on a single partition, for example /usr and /var. Only directories that are excluded from snapshots may reside on separate partitions, for example /usr/local, /var/log, and /tmp.

For details, see Chapter 7, System Recovery and Snapshot Management with Snapper.

Important
Important: Btrfs Snapshots and Root Partition Size

Snapshots occupy space on their partition. As a rule of thumb, the older a snapshot is, or the bigger the changeset they cover is, the bigger the snapshot. Plus, the more snapshots you keep, the more diskspace you need.

To prevent the root partition running full with snapshot data, you need to make sure it is big enough. In case you do frequent updates or other installations, consider at least 30 GB for the root partition. If you plan to keep snapshots activated for a system upgrade or a service pack migration (to be able to roll back), you should consider 40 GB or more.

Btrfs Data Volumes

Using Btrfs for data volumes is supported on SUSE Linux Enterprise Server 15 SP1. For applications that require Btrfs as a data volume, consider creating a separate file system with quota groups disabled. This is already the default for non-root file systems.

Btrfs on an Encrypted Root Partition

The default partitioning setup suggests the root partition as Btrfs. To encrypt the root partition, make sure to use the GPT partition table type instead of the MSDOS type. Otherwise the GRUB2 boot loader may not have enough space for the second stage loader.

IBM Z: Using Minidisks in z/VM

If SUSE Linux Enterprise Server is installed on minidisks in z/VM, which reside on the same physical disk, the access path of the minidisks (/dev/disk/by-id/) is not unique. This is because it represents the ID of the physical disk. If two or more minidisks are on the same physical disk, they all have the same ID.

To avoid problems when mounting minidisks, always mount them either by path or by UUID.

IBM Z: LVM Root File System

If you configure the system with a root file system on LVM or software RAID array, you must place /boot on a separate, non-LVM or non-RAID partition, otherwise the system will fail to boot. The recommended size for such a partition is 500 MB and the recommended file system is Ext4.

IBM POWER: Installing on Systems with Multiple Fibre Channel Disks

If more than one disk is available, the partitioning scheme suggested during the installation puts the PReP and BOOT partitions on different disks. If these disks are Fibre Channel Disks, the GRUB boot loader is not able to find the BOOT partition and the system cannot be booted.

When prompted to select the partition scheme during the installation, choose Guided Setup and verify that only one disk is selected for installation. Alternatively, run the Expert Partitioner and manually set up a partitioning scheme that has PRep and BOOT on a single disk.

Supported Software RAID Volumes

Installing to and booting from existing software RAID volumes is supported for Disk Data Format (DDF) volumes and Intel Matrix Storage Manager (IMSM) volumes. IMSM is also known by the following names:

Mount Points for FCoE and iSCSI Devices

FCoE and iSCSI devices will appear asynchronously during the boot process. While the initrd guarantees that those devices are set up correctly for the root file system, there are no such guarantees for any other file systems or mount points like /usr. Hence any system mount points like /usr or /var are not supported. To use those devices, ensure correct synchronization of the respective services and devices.

8.11.2 Suggested Partitioning Edit source

Define a partition setup for SUSE Linux Enterprise Server in this step.

Suggested Partitioning
Figure 8.14: Suggested Partitioning

Depending on the system role, the installer creates a proposal for one of the disks available. All proposals contain a root partition formatted with Btrfs (with snapshots enabled) and a swap partition. The GNOME desktop and the text mode proposals create a separate home partition on disks larger than 20 GB. The system roles for virtualization hosts create a separate partition for /var/lib/libvirt, the directory that hosts the image files by default. If one or more swap partitions have been detected on the available hard disks, these existing ones will be used (rather than proposing a new swap partition). You have several options to proceed:

Next

To accept the proposal without any changes, click Next to proceed with the installation workflow.

Guided Setup

To adjust the proposal, choose Guided Setup. First, choose which hard disks and partitions to use. In the Partitioning Scheme screen, you can enable Logical Volume Management (LVM) and activate disk encryption. Afterwards specify the Filesystem Options. You can adjust the file system for the root partition and create a separate home and swap partitions. If you plan to suspend your machine, make sure to create a separate swap partition and check Enlarge to RAM Size for Suspend. If the root file system format is Btrfs, you can also enable or disable Btrfs snapshots here.

Expert Partitioner

To create a custom partition setup click Expert Partitioner. Select either Start with Current Proposal if you want start with the suggested disk layout, or Start with Existing Partitions to ignore the suggested layout and start with the existing layout on the disk. You can Add, Edit, Resize, or Delete partitions.

You can also set up Logical Volumes (LVM), configure software RAID and device mapping (DM), encrypt Partitions, mount NFS shares and manage tmpfs volumes with the Expert Partitioner. To fine-tune settings such as the subvolume and snapshot handling for each Btrfs partition, choose Btrfs. For more information about custom partitioning and configuring advanced features, refer to Section 10.1, “Using the Expert Partitioner”.

8.12 Clock and Time Zone Edit source

In this dialog, select your region and time zone. Both are preselected according to the installation language.

Clock and Time Zone
Figure 8.15: Clock and Time Zone

To change the preselected values, either use the map or the drop-down boxes for Region and Time Zone. When using the map, point the cursor at the rough direction of your region and left-click to zoom. Now choose your country or region by left-clicking. Right-click to return to the world map.

To set up the clock, choose whether the Hardware Clock is Set to UTC. If you run another operating system on your machine, such as Microsoft Windows, it is likely your system uses local time instead. If you run Linux on your machine, set the hardware clock to UTC and have the switch from standard time to daylight saving time performed automatically.

Important
Important: Set the Hardware Clock to UTC

The switch from standard time to daylight saving time (and vice versa) can only be performed automatically when the hardware clock (CMOS clock) is set to UTC. This also applies if you use automatic time synchronization with NTP, because automatic synchronization will only be performed if the time difference between the hardware and system clock is less than 15 minutes.

Since a wrong system time can cause serious problems (missed backups, dropped mail messages, mount failures on remote file systems, etc.), it is strongly recommended to always set the hardware clock to UTC.

POWER, AMD/Intel If a network is already configured, you can configure time synchronization with an NTP server. Click Other Settings to either alter the NTP settings or to Manually set the time. See Chapter 31, Time Synchronization with NTP for more information on configuring the NTP service. When finished, click Accept to continue the installation.

POWER, AMD/Intel If running without NTP configured, consider setting SYSTOHC=no (sysconfig variable) to avoid saving unsynchronized time into the hardware clock.

Note
Note: Time Cannot Be Changed on IBM Z

Since the operating system is not allowed to change time and date directly, the Other Settings option is not available on IBM Z.

8.13 Create New User Edit source

Create a local user in this step.

Create New User
Figure 8.16: Create New User

After entering the first name and last name, either accept the proposal or specify a new User name that will be used to log in. Only use lowercase letters (a-z), digits (0-9) and the characters . (dot), - (hyphen) and _ (underscore). Special characters, umlauts and accented characters are not allowed.

Finally, enter a password for the user. Re-enter it for confirmation (to ensure that you did not type something else by mistake). To provide effective security, a password should be at least six characters long and consist of uppercase and lowercase letters, numbers and special characters (7-bit ASCII). Umlauts or accented characters are not allowed. Passwords you enter are checked for weakness. When entering a password that is easy to guess (such as a dictionary word or a name) you will see a warning. It is a good security practice to use strong passwords.

Important
Important: User Name and Password

Remember both your user name and the password because they are needed each time you log in to the system.

If you install SUSE Linux Enterprise Server on a machine with one or more existing Linux installations, YaST allows you to import user data such as user names and passwords. Select Import User Data from a Previous Installation and then Choose Users for import.

If you do not want to configure any local users (for example when setting up a client on a network with centralized user authentication), skip this step by choosing Next and confirming the warning. Network user authentication can be configured at any time later in the installed system; refer to Chapter 23, Managing Users with YaST for instructions.

Two additional options are available:

Use this Password for System Administrator

If checked, the same password you have entered for the user will be used for the system administrator root. This option is suitable for stand-alone workstations or machines in a home network that are administrated by a single user. When not checked, you are prompted for a system administrator password in the next step of the installation workflow (see Section 8.14, “Authentication for the System Administrator root).

Automatic Login

This option automatically logs the current user in to the system when it starts. This is mainly useful if the computer is operated by only one user. For automatic login to work, the option must be explicitly enabled.

Warning
Warning: Automatic Login

With the automatic login enabled, the system boots straight into your desktop with no authentication. If you store sensitive data on your system, you should not enable this option if the computer can also be accessed by others.

In an environment where users are centrally managed (for example by NIS or LDAP) you may want to skip the creation of local users. Select Skip User Creation in this case.

8.14 Authentication for the System Administrator root Edit source

If you have not chosen Use this Password for System Administrator in the previous step, you will be prompted to enter a password for the System Administrator root or provide a public SSH key. Otherwise this configuration step is skipped.

Authentication for the System Administrator root
Figure 8.17: Authentication for the System Administrator root

root is the name of the superuser, or the administrator of the system. Unlike regular users, root has unlimited rights to change the system configuration, install programs, and set up new hardware. If users forget their passwords or have other problems with the system, root can help. The root account should only be used for system administration, maintenance, and repair. Logging in as root for daily work is rather risky: a single mistake could lead to irretrievable loss of system files.

For verification purposes, the password for root must be entered twice. Do not forget the root password. After having been entered, this password cannot be retrieved.

Tip
Tip: Passwords and Keyboard Layout

It is recommended to only use characters that are available on an English keyboard. In case of a system error or when you need to start your system in rescue mode a localized keyboard might not be available.

The root password can be changed any time later in the installed system. To do so run YaST and start Security and Users › User and Group Management.

Important
Important: The root User

The user root has all the permissions needed to make changes to the system. To carry out such tasks, the root password is required. You cannot carry out any administrative tasks without this password.

In some situations it is preferred to access the system remotely via SSH using a public key. This screen allows you to select a public key from a medium.

The following procedure describes how to add a public SSH key from a USB stick. It works the same way with CD/DVD-ROM or from an existing partition. Proceed as follows:

Procedure 8.1: Adding a Public SSH Key for User root
  1. Insert into your computer the USB storage device containing the public SSH key. The public SSH key has the file extension .pub.

  2. Click Refresh. You should see the device in the list selector under Import Public Key.

  3. Click Browse and select the public SSH key.

  4. Proceed with Next.

  5. In the Installation Settings summary, make sure to check under Firewall and SSH the SSH port. Click open so it reads SSH port will be open.

After the installation is finished, you can log in through SSH using the provided public SSH key.

8.15 Installation Settings Edit source

On the last step before the real installation takes place, you can alter installation settings suggested by the installer. To modify the suggestions, click the respective headline. After having made changes to a particular setting, you are always returned to the Installation Settings window, which is updated accordingly.

If you have added an SSH key for your root as mentioned in Procedure 8.1, make sure to open the SSH port in the Firewall and SSH settings.

Installation Settings
Figure 8.18: Installation Settings

8.15.1 Software Edit source

SUSE Linux Enterprise Server contains several software patterns for various application purposes. The available choice of patterns and packages depends on your selection of modules and extensions.

Click Software to open the Software Selection and System Tasks screen where you can modify the pattern selection according to your needs. Select a pattern from the list and see a description in the right-hand part of the window.

Each pattern contains several software packages needed for specific functions (for example Web and LAMP server or a print server). For a more detailed selection based on software packages to install, select Details to switch to the YaST Software Manager.

Software Selection and System Tasks
Figure 8.19: Software Selection and System Tasks

You can also install additional software packages or remove software packages from your system at any later time with the YaST Software Manager. For more information, refer to Chapter 20, Installing or Removing Software.

If you choose to install GNOME, SUSE Linux Enterprise Server is installed with the X.org display server. As an alternative to GNOME, the lightweight window manager IceWM can be installed. Select Details from the Software Selection and System Tasks screen and search for icewm.

Tip
Tip: IBM Z: Hardware Cryptography Support

The hardware cryptography stack is not installed by default. To install it, select System z HW crypto support in the Software Selection and System Tasks screen.

Tip
Tip: Adding Secondary Languages

The language you selected with the first step of the installation will be used as the primary (default) language for the system. You can add secondary languages from within the Software dialog by choosing Details › View › Languages.

8.15.2 Booting Edit source

The installer proposes a boot configuration for your system. Other operating systems found on your computer, such as Microsoft Windows or other Linux installations, will automatically be detected and added to the boot loader. However, SUSE Linux Enterprise Server will be booted by default. Normally, you can leave these settings unchanged. If you need a custom setup, modify the proposal according to your needs. For information, see Section 14.3, “Configuring the Boot Loader with YaST”.

Important
Important: Software RAID 1

Booting a configuration where /boot resides on a software RAID 1 device is supported, but it requires to install the boot loader into the MBR (Boot Loader Location › Boot from Master Boot Record). Having /boot on software RAID devices with a level other than RAID 1 is not supported. Also see Chapter 8, Configuring Software RAID for the Root Partition.

8.15.3 Security Edit source

The CPU Mitigations refer to kernel boot command line parameters for software mitigations that have been deployed to prevent CPU side-channel attacks. Click the highlighted entry to choose a different option. For details, see CPU Mitigations.

By default firewalld is enabled on all configured network interfaces. To globally disable the firewall for this computer, click Disable (not recommended).

Note
Note: Firewall Settings

If the firewall is activated, all interfaces are configured to be in the External Zone, where all ports are closed by default, ensuring maximum security. The only port you can open during the installation is port 22 (SSH), to allow remote access. All other services requiring network access (such as FTP, Samba, Web server, etc.) will only work after having adjusted the firewall settings. Refer to Chapter 24, Masquerading and Firewalls for more information.

To enable remote access via the secure shell (SSH), make sure the SSH service is enabled and the SSH port is open.

Tip
Tip: Existing SSH Host Keys

If you install SUSE Linux Enterprise Server on a machine with existing Linux installations, the installation routine imports an SSH host key. It chooses the host key with the most recent access time by default. See also Section 8.15.8, “Import SSH Host Keys and Configuration.

If you are performing a remote administration over VNC, you can also specify whether the machine should be accessible via VNC after the installation. Note that enabling VNC also requires you to set the Default systemd Target to graphical.

8.15.4 Network Configuration Edit source

This category displays the current network settings (as automatically configured after booting into the installation, see Section 8.6) or as manually configured from the Registration or Add-On Product dialog during the respective steps of the installation process. If you want to check or adjust the network settings at this stage (before performing the installation), click Network Configuration. This takes you to the YaST Network Settings module. For details, see Section 19.4, “Configuring a Network Connection with YaST”.

8.15.5 Kdump Edit source

Using Kdump, you can save a dump of the kernel (in case of a crash) to analyze what went wrong. Use this dialog to enable and configure Kdump. Find detailed information at Chapter 17, Kexec and Kdump.

8.15.6 IBM Z: Blacklist Devices Edit source

To save memory, all channels for devices currently not in use are blacklisted by default (each channel that is not blacklisted occupies approximately 50 KB of memory). To configure additional hardware in the installed system using channels that are currently blacklisted, run the respective YaST module to enable the respective channels first.

To disable blacklisting, click disable.

8.15.7 Default systemd Target Edit source

SUSE Linux Enterprise Server can boot into two different targets (formerly known as runlevels). The graphical target starts a display manager, whereas the multi-user target starts the command line interface.

The default target is graphical. In case you have not installed the X Window System patterns, you need to change it to multi-user. If the system should be accessible via VNC, you need to choose graphical.

8.15.8 Import SSH Host Keys and Configuration Edit source

If an existing Linux installation on your computer was detected, YaST will import the most recent SSH host key found in /etc/ssh by default, optionally including other files in the directory as well. This makes it possible to reuse the SSH identity of the existing installation, avoiding the REMOTE HOST IDENTIFICATION HAS CHANGED warning on the first connection. Note that this item is not shown in the installation summary if YaST has not discovered any other installations. You have the following choices:

I would like to import SSH keys from a previous install:

Select this option to import the SSH host key and optionally the configuration of an installed system. You can select the installation to import from in the option list below.

Import SSH Configuration

Enable this to copy other files in /etc/ssh to the installed system in addition to the host keys.

8.15.9 System Edit source

This screen lists all the hardware information the installer could obtain about your computer. When opened for the first time, the hardware detection is started. Depending on your system, this may take some time. Select any item in the list and click Details to see detailed information about the selected item. Use Save to File to save a detailed list to either the local file system or a removable device.

Advanced users can also change the PCI ID Setup and kernel settings by choosing Kernel Settings. A screen with two tabs opens:

PCI ID Setup

Each kernel driver contains a list of device IDs of all devices it supports. If a new device is not in any driver's database, the device is treated as unsupported, even if it can be used with an existing driver. You can add PCI IDs to a device driver here. Only advanced users should attempt to do so.

To add an ID, click Add and select whether to Manually enter the data, or whether to choose from a list. Enter the required data. The SysFS Dir is the directory name from /sys/bus/pci/drivers—if empty, the driver name is used as the directory name. Existing entries can be managed with Edit and Delete.

Kernel Settings

Change the Global I/O Scheduler here. If Not Configured is chosen, the default setting for the respective architecture will be used. This setting can also be changed at any time later from the installed system. Refer to Chapter 12, Tuning I/O Performance for details on I/O tuning.

Also activate the Enable SysRq Keys here. These keys will let you issue basic commands (such as rebooting the system or writing kernel dumps) in case the system crashes. Enabling these keys is recommended when doing kernel development. Refer to https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html for details.

8.16 Performing the Installation Edit source

After configuring all installation settings, click Install in the Installation Settings window to start the installation. Some software may require a license confirmation. If your software selection includes such software, license confirmation dialogs are displayed. Click Accept to install the software package. When not agreeing to the license, click I Disagree and the software package will not be installed. In the dialog that follows, confirm with Install again.

The installation usually takes between 15 and 30 minutes, depending on the system performance and the selected software scope. After having prepared the hard disk and having saved and restored the user settings, the software installation starts. Choose Details to switch to the installation log or Release Notes to read important up-to-date information that was not available when the manuals were printed.

After the software installation has completed, the system reboots into the new installation where you can log in. To customize the system configuration or to install additional software packages, start YaST.

8.16.1 IBM Z: IPLing the Installed System Edit source

YaST usually reboots into the installed system on the IBM Z platform. Exceptions are installations where the boot loader resides on an FCP device in environments with LPAR on a machine older than z196 or with z/VM older than release 5.4. The boot loader gets written to a separate partition mounted as /boot/zipl/.

In cases where an automatic reboot is not possible, YaST will show a dialog containing information about from which device to do an IPL. Accept the shutdown option and perform an IPL after the shutdown. The procedure varies according to the type of installation:

LPAR Installation

In the IBM Z HMC, select Load, select Clear, then enter the loading address (the address of the device containing the /boot/zipl directory with the boot loader). If using a zFCP disk as the boot device, choose Load from SCSI and specify the load address of your FCP adapter plus WWPN and LUN of the boot device. Now start the loading process.

z/VM Installation

Log in to the VM guest (see Example 5.1, “Configuration of a z/VM Directory” for the configuration) as LINUX1 and proceed to IPL the installed system:

IPL 151 CLEAR

151 is an example address of the DASD boot device, replace this value with the correct address.

If using a zFCP disk as the boot device, specify both the zFCP WWPN and LUN of the boot device before initiating the IPL. The parameter length is limited to eight characters. Longer numbers must be separated by spaces:

SET LOADDEV PORT 50050763 00C590A9 LUN 50010000 00000000

Finally, initiate the IPL:

IPL FC00

FC00 is an example address of the zFCP adapter, replace this value with the correct address.

KVM Guest Installation

After the installation has finished, the virtual machine is shut down. At this point, log in to the KVM host, edit the virtual machine's description file and restart it to IPL into the installed system:

  1. Log in to the KVM host.

  2. Edit the domain XML file by running

    tux > sudo virsh edit s12-1

    and remove the following lines:

      <!-- Boot kernel - remove 3 lines after successfull installation -->
      <kernel>/var/lib/libvirt/images/s12-kernel.boot</kernel>
      <initrd>/var/lib/libvirt/images/s12-initrd.boot</initrd>
      <cmdline>linuxrcstderr=/dev/console</cmdline>
  3. Restart the VM Guest to IPL into the installed system:

    tux > sudo virsh start s12-1 --console
Note
Note: cio_ignore Is Disabled for KVM Installations

The kernel parameter cio_ignore prevents the kernel from looking at all the available hardware devices. However, for KVM guests, the hypervisor already takes care to only provide access to the correct devices. Therefore cio_ignore is disabled by default when installing a KVM guest (for z/VM and LPAR installations it is activated by default).

8.16.2 IBM Z: Connecting to the Installed System Edit source

After IPLing the system, establish a connection via VNC, SSH, or X to log in to the installed system. Using either VNC or SSH is recommended. To customize the system configuration or to install additional software packages, start YaST.

8.16.2.1 Using VNC to Connect Edit source

A message in the 3270 terminal asks you to connect to the Linux system using a VNC client. However, this message is easily missed, because it is mixed with kernel messages and the terminal process might quit before you notice the message. If nothing happens for five minutes, try to initiate a connection to the Linux system using a VNC viewer.

If you connect using a JavaScript-capable browser, enter the complete URL, consisting of the IP address of the installed system along with the port number, in the following fashion:

http://IP_OF_INSTALLED_SYSTEM:5801/

8.16.2.2 Using SSH to Connect Edit source

A message in the 3270 terminal asks you to connect to the Linux system with an SSH client. This message is easily missed, however, because it is mixed with kernel messages and the terminal process might quit before you become aware of the message.

When the message appears, use SSH to log in to the Linux system as root. If the connection is denied or times out, wait for the login timeout to expire, then try again (this time depends on server settings).

8.16.2.3 Using X to Connect Edit source

When IPLing the installed system, make sure that the X server used for the first phase of the installation is up and still available before booting from the DASD. YaST opens on this X server to finish the installation. Complications may arise if the system is booted up but unable to connect to the X server in a timely fashion.

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