Getting Started with DB2 Express-C

Chapter 3 – DB2 Installation 53
3.5 Silent Install
There may be situations where you need to install a DB2 client on multiple computers; or
you need to embed a DB2 data server as part of your application, and would like to install it
as part of your application installation process. In these situations, a silent install is the
ideal way to install DB2.
DB2 enables silent installs through the use of response files which store installation
information as simple text options. Listing 3.1 shows a snippet of a sample response file.
PROD=UDB_EXPRESS_EDITION
LIC_AGREEMENT=ACCEPT
FILE=C:\Program Files\IBM\SQLLIB\
INSTALL_TYPE=TYPICAL
LANG=EN
INSTANCE=DB2
DB2.NAME=DB2
DEFAULT_INSTANCE=DB2
DB2.SVCENAME=db2c_DB2
DB2.DB2COMM=TCPIP
...
Listing 3.1 – A sample response file
There are a number of ways to generate a response file:
• Install DB2 Express-C once on a computer using the DB2 Installation wizard. One
of the first wizard options (as shown in Figure 3.3) allows you to select the
checkbox to save your install responses to a response file. At the end of the
installation, the wizard generates a response file into a specified directory and
filename. This is a text file, so you can manually edit it afterwards.
• Edit the sample response file provided with the DB2 Express-C image. This sample
file (denoted with a .rsp file extension) is located in the db2/platform/samples/
directory
• For Windows, you can also use the response file generator command:
db2rspgn –d
Finally, to silently install DB2 using a response file, issue the following command on
Windows:
setup -u
On Linux, issue the command:
db2setup -r