Header image

It's full of stars

Where documentation meets reality

Install a SAP NetWeaver ABAP system

By Tobias Hofmann April 27, 2015 Posted in SAP
Tags: abap installation netweaver

Reading time: 6 min read

Introduction

SAP NetWeaver ABAP is the application server running most of SAP’s software. Version 7.4 comes with Gateway and the option to run Fiori on top of it. The installation of a NetWeaver ABAP system is not overly complex for a developer system: basically it is just installing the software. This installation process is composed of three steps:

After executing all three steps, you have a fully functional SAP NetWeaver ABAP system.

Pre-requisites

To install a SAP system, you need to check first the hard ware requirements. You also need to ensure that a correct user/group is set up. This depends normally on the SID of your SAP system.

Software packages you’ll need

All files are delivered as ZIP, except SWPM. You’ll have to un-SAR this one. Copy all unziped/unsared file to a common location on your server, like /install.

User

For each SAP system you’ll need to have one corresponding administration user. The user ID is determined by the SAP system Id (SID). The user id follows the schema: adm. For instance, when your SAP system is going to use the SID GWD, the user will be gwdadm. The group can be anything, but normally you use sapsys as group name. Creating a user in Linux is easy as it is just one command, and with SuSE you even get a wizard that aids you through the process.

User

Group

Installation

To start the installation, just run sapinst from the SWPM package.

There are two executables: sapinst and sapinstgui. Sapinst will start the local server and the local GUI, while sapinstgui needs to connect to an already started sapinst server. As long as you do not have to do a remote installation, sapinst is the executable you want to run.

The initial screen shows the install options

Pre-requisites check

I am going to install SAP NetWeaver 7.4 Support Release 2 ABAP for MaxDB. First thing to run is the preparations step.

Select what sapinst should test. If nothing is selected, sapinst will check a basic set of requirements. This does not mean that after the check is done your system really meets all the requirements. So make sure you select what you are going to install to have a meaningful test result. As I am going to install NetWeaver ABAP, I selected the ABAP related checks.

Provide the database type.

Confirm that a UC system will be installed.

SAPinst will ask for the location of the Kernel files.

Inform the location of the files. In my case, they are located at /sap/inst

Confirm the prerequisites data. If everything is OK, you can start the process.

The requisites are being verified.

After the check is done, sapinst presents you a screen with the results.

Go through the list. Everything needs to be OK.

The final dialog confirms that everything is OK and that a report was saved to a local file.

Now we are good to go: sapinst checked the system and gave it a quality stamp. Nothing impedes the installation of NetWeaver ABAP 7.4 SR2 with MaxDB.

Installation

The NW ABAP 7.4 SR2 system is going to be a standalone system, with everything on the same host.

Installation type

Installation mode

Chose mode. Typical is enough, you’ll see still more than enough input dialogs.

In case the mode of the files is not correct, do not worry. Sapinst will take care of that (thank you sapinst!).

SAP system id

Specify the SID (here: GWD) and the mount directory (here: /sapmnt).

Set DNS name

The 2nd input field is to set the domain name of the server. Do not enter the FQDN or the name of the server here, just the DNS name (here: tobias.de). If you server is nwgw74.tobias.de, only the tobias.de part.

Kernel files

Standard password for all users

Database SID

DB files

Inform where the DB files are located

ABAP files

Inform location of ABAP files

SLD

Let’s do not add the system to a SLD

Secure Storage Key Generation

Let the installer create a secure key

Review parameters

Start installation

Lean back and relax, this will take a while

 

End of installation

After all steps are executed successfully and marked with a green check, the installation is done.

Install SAP license

Log on to the new SAP system is done via SAPGui. User is SAP* and the password is the standard password given during installation.

Transaction: slicense

Automatically, a temporary license is installed.

Click the install button and select the license file. If everything is OK, a popup will confirm the installation of the license(s).

Last check is to verify that the new license is installed and active.

 

Problems

If the installation goes through without any error: congratulations. Many users will run into some errors, just do a search on SCN for installation problems. Here are some common problems and their solution:

R3load connect error

Step: Import ABAP:

Problem: R3load –testconnect fails

Analysis:

Log file:

Cause: Library not loaded

How to add the MaxDB library to the LD path? Configuration is stored in directory /etc/ld.so.conf

The last line is a include parameter. To add the Max DB libraries, it is just to create a conf file maxdb.conf in /etc/ld.so.conf.d/ and add the lib path to the new file.

Running the ld command from above:

Sapinst: retry

Strange errors

SAPinst should be run as the admin user of the instance: adm. SCN is full of errors from users that had the problem to run the Import ABAP step. That error is caused by running the installation as root and not as adm. For instance, to configure the DB, R3load is called. With user adm the program connects flawlessly to the DB, as user root not. This is given by the simple fact that the environment variables are set for adm, and not for user root.

SAPUXUSERCHECK

In case sapinst isn’t capable of setting the right permissions to the file sapuxusercheck, follow SAP Note 1563660 🔗.