2.4 SLES for SAP Applications — Installation with Wizard

This is a guided installation of the operating system with optimized settings for SAP applications.

During this installation scenario, the following installation and configuration steps will take place. Interactive settings are required or possible. At the end of the SUSE Linux installation, you will be prompted to insert your SAP product media.

2.4.1 Data Required for Installing the System (with Wizard)

The following data is required for the SUSE Linux Enterprise Server part of the installation (required per physical server):



IP address

Subnet mask

Domain searchlist (DNS)

IP for nameserver

IP for gateway

Master password for the system installation (root password)

Some more specific parameters are required depending on the SAP application you want to install, for example SAP System ID or System T-Shirt Sizing.

2.4.2 Selecting SLES for SAP Applications — Installation with Wizard from the DVD Boot Menu

From the DVD boot menu (see Figure 2-1), select SLES for SAP Applications — Installation with Wizard. The installation process loads and configures a SUSE Linux system with all requirements for a SAP installation. To view the boot messages and copyright notices during this process, press Esc. On completion of this process, the YaST installation program starts and displays the graphical installer, which will run mostly automatically.

On the initial dialog confirm the license (see Figure 2-2).

2.4.3 Preparing System for Automated Installation

After analyzing your computer, YaST allows you to specify options for a customized installation.

Password for the System Administrator root

First, YaST prompts you to enter the system administrator password; see Figure 2-4. This is the root password for the system.

Figure 2-4 System Administrator Password

root is the name of the superuser, or the administrator of the system. Unlike regular users (who may or may not have permission to access certain areas or execute certain commands on the system), root has unlimited access to change the system configuration, install programs, and set up new hardware. 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. Once entered, this password cannot be retrieved.

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.

WARNING: The root User

The root user 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.

System Volume Configuration

The next YaST pop-up dialog lets you fine-tune the volume configuration. Here you configure the volume for the system and swap space. Suitable values depending on your available hardware are pre-selected. This is for the SUSE Linux operating system only; the data volume comes later, after selecting the SAP Application.

Figure 2-5 System Volume Configuration

If there is just one hard disk, keep it as the system volume device and set the size of the system volume (and the swap space) in GB in the lower field and confirm it; see Figure 2-5.

HINT: Size of the System Volume

Normally, at least 35 GB is required for the system volume. The swap space depends on the available main memory (RAM). For more information, see the SAP Note 1984787: https://service.sap.com/sap/support/notes/1984787.

If there is more than one hard disk, select the right one as the system volume device and set the size of the system volume (and the swap space) in GB in the lower fields and confirm it. For more information about partitioning, see Section 3.0, Background Information on Partitioning.

WARNING: Deleting Data

If you confirm the storage volume configuration, all existing data on the hard disk will be deleted. If you do not want this to happen, turn off the system.

Hostname, Domain Name, and IP Address

The next dialog starts with the network configuration; see Figure 2-6.

Figure 2-6 Hostname, Domain Name, and IP Address

HINT: Querying DHCP Server

The installation wizard will query a locally running DHCP server to get interesting network data such as names and IP adresses for the local host, DNS server, NTP server, etc. This ensures that the entry fields of the next dialogs will be prefilled with these data.

The Hostname is the computer’s name in the network. The Domain Name is the name of the network. A hostname and domain are proposed by default. If your system is part of a network, the hostname has to be unique in this network, whereas the domain name has to be common to all hosts on the network.

Also enter the IP Address and Netmask for this host. The IP address must be unique and the netmask has to be common to all hosts on the network.

Domain Name Service (DNS) and Time Server (NTP)

The next dialog continues with the network configuration; see Figure 2-7.

Figure 2-7 Domain Name Service (DNS) and Time Server (NTP)

For Domain Name Service (DNS) configuration, enter the Domain Searchlist and the IP Address of DNS Server plus the IP address of the Default Gateway of your network.

Also enter the address of the NTP Server to synchronize automatically via Network Time Protocol (NTP).


To get technical support and product updates, you need to register and activate your product with the Novell Customer Center; see Figure 2-8. This dialog provides assistance for doing so. For information about SUSE Customer Center, see https://scc.suse.com.

Figure 2-8 Registration

Enter your E-Mail Address and Registration Code for the product. If you provide the registration code now, operating system updates will be installed automatically during the installation of the system.

NOTE: Additional Packages Pre-Selected

If you install with registration, the SUSE Linux Enterprise High Availability Extension repository by default will be activated and some few SUSE Linux Enterprise High Availability Extension packages will get installed. This will not happen, if you will register the product after the installation.

After confirmation, the system will be configured with the supplied settings. Then YaST performs the partitioning and the software installation. Packages are installed one by one, so you can see the progress.

No user action is required at this stage.

WARNING: Firewall Disabled

This wizard-based installation scenario disables the firewall (SuSEfirewall2) completely.

If needed, you can activate the firewall after the installation. If you activate the firewall after the installation, you must open all required ports manually. For more information about required ports, see Section 5.2.2, Ports Configuration.

2.4.4 SAP Product Installation

After an automatic reboot (Boot from Harddisk > Booting SLE-12-SAP) and applying previously supplied configuration settings, you are prompted to continue with the SAP Product Installation using the SAP Installation Wizard. The SAP Installation Wizard will install the SAP application from the SAP media kits you received from SAP.

HINT: SAP Product Installation Default Settings

The SAP Product Installation default settings are specified and documented in /etc/sysconfig/sap-installation-wizard. You can change them according to your needs.

SAP Product Installation

  1. Select Create SAP file systems and start SAP product installation and confirm the pop-up (see Figure 2-9) if you want to continue with the installation right away.

    Otherwise, it is possible to just prepare the SAP product installation with Only create SAP Business One file systems, do not install SAP products now, or completely interrupt the installation process at this point with Finish wizard and proceed to OS login and resume it after a system restart.

    Figure 2-9 SAP Product Installation

    HINT: Resuming SAP Installation after System Restart

    To resume the SAP installation with the wizard, start YaST and select the SAP Product Installer (Computer, then in the YaST Control Center click Miscellaneous > SAP Product Installer; see Figure 2-10). The functionality is the same, but the layout of the dialogs is different; the left progress pane is only displayed when continuing with the installation without a restart.

    The following screen shots document the installation with the SAP Product Installer that runs after a restart of the system.

    Figure 2-10 YaST Control Center: SAP Product Installer

  2. In the next dialog provide the Location of the SAP Installation Master; see Figure 2-11. The location can either be a local source or a remotely provided installation source.

    Local Source
    • a directory (dir:// and /path/to/dir/)

    • a locally connected hard disk (device:// and devicename/path/to/dir/on/device)

    • a USB mass storage (usb:// and /path/to/dir/on/USB)

    • a CD-ROM (cdrom://)

    A Remotely Provided Installation Source
    • NFS (nfs:// and server_name//path/to/dir/on/server)

    • SMB (smb:// and [username:password@]server_name//path/to/dir/on/server[?workgroup=workgroup_name])

    —select the corresponding option from the pull-down list on the left.

    HINT: Remote Location Specification

    If you want to install from an NFS source, you must enter the name of the server and the complete path to the media data. For more information about setting up a remote installation server, see Section 4.2, Copying SAP Media Sets from a Remote Server with the Installation Wizard.

    Figure 2-11 SAP Installation Wizard: SAP Installation Master Location

  3. Only in the case of a NetWeaver installation, in the next dialog you must select the Installation Mode such as SAP Standard System, SAP Standalone Engines, etc. and the Database such as IBM DB2, MaxDB, etc. you want to deploy. In the case of a B1 or HANA installation, such a selection does not exist. See Figure 2-12. Click Help for information.

    Figure 2-12 SAP Installation Wizard: Installation Mode and Database

    Enable Preparation for autoinstallation, if you only want to enter the installation parameters, but not perform the actual installation now. In this case, the installer will copy the product images to /data/SAP_CDs and prepare an installation environment for every product as follows:


    If you later actually want to run the auto installation, set SAP_AUTO_INSTALL="yes" in /etc/sysconfig/sap-installation-wizard. If you then click the SAP Product Installer in the YaST Control Center to run the auto installation, all settings will be displayed and offered for optional fine-tuning (NetWeaver) or the parameters are written to the AutoYaST files in the /data/SAP_INST/number directories, where you can modify them according to your needs (HANA/B1).

  4. In case of a NetWeaver installation you now select a SAP Product. The offerings of available products depend on the media set and installation master you received from SAP; for example, see Figure 2-13.

    Figure 2-13 SAP Installation Wizard: SAP Products

  5. For example, select SAP NetWeaver 7.4 and click Next. Now the relevant part of the SAP media will be copied to the hard drive of the machine for the following SAP installation (after copying, see the contents of /data/SAP_CDs; the layout is explained later in this chapter). This is repeated for all necessary SAP media, with some additional simple questions.

  6. You are asked to provide the Location of the SAP Medium and if additional media are needed, you can also add them afterwards; see Figure 2-14 (here you see the list of already copied or linked SAP media). Click Help for information.

    Figure 2-14 SAP Installation Wizard: Additional SAP Media

  7. Then you can optionally copy a Supplement or 3rd-Party Medium. For more information about a Supplement Media, see Section 5.4, Supplement Media.

  8. At this point, all data (product images) required for the SAP installation is selected and copied to /data/SAP_CDs, one directory per medium, e.g.:


    /data/SAP_CDs is the default directory as specified in the /etc/sysconfig/sap-installation-wizard configuration file.

  9. In the following configuration dialogs, enter the details for the SAP installation.

    First, specify the System T-Shirt-Sizing.

    Figure 2-15 SAP System Parameters: T-Shirt-Sizing

  10. In Figure 2-16, then enable and enter the virtual network settings, if needed. For details, see the online help on the left.

    Figure 2-16 SAP Virtual Network Settings

  11. Now all installation data (media and settings) is available to the wizard, and the final deployment of the SAP system can take place with the SAP installer (SAPinst).

    Figure 2-17 SAP Installer (SAPinst): Defining Parameters

    The SAP installer displays a visualization of the installation steps it performs; see Figure 2-18.

    Figure 2-18 SAP Installer (SAPinst)

NOTE: Installation Progress

Depending on your machine, it takes a while until the SAPinst tool shows up.

After the SAP installer has finished, you will see a short summary of the installation data.