Running the Installation Script

First you have to prepare an install directory:

# cd /oracle/SID/sapreorg
# mkdir install
# cd install

Then the installation script is started, which will copy nearly all the relevant files into the install directory:

# /oracle/SID/sapreorg/KERNEL/UNIX/INSTTOOL.SH

The IDES installation (4.6B) comes with a fully customized SAP R/3 demonstration system, so there are six instead of just three EXPORT CDs. At this point the installation template CENTRDB.R3S is for installing a standard central instance (R/3 and database), not the IDES central instance, so one needs to copy the corresponding CENTRDB.R3S from the EXPORT1 directory, otherwise R3SETUP will only ask for three EXPORT CDs.

The newer SAP 4.6C SR2 release comes with four EXPORT CDs. The parameter file that controls the installation steps is CENTRAL.R3S. Contrary to earlier releases there are no separate installation templates for a central instance with or without database. SAP is using a separate template for database installation. To restart the installation later it is however sufficient to restart with the original file.

During and after installation, SAP requires hostname to return the computer name only, not the fully qualified domain name. So either set the hostname accordingly, or set an alias with alias hostname='hostname -s' for both orasid and sidadm (and for root at least during installation steps performed as root). It is also possible to adjust the installed .profile and .login files of both users that are installed during SAP installation.