18. Installing DB2 Version 8.2 on systems that use .deb packages

18.1. Pre-installation notes

Ensure that you have installed alien:

sudo apt-get install alien

If you want to run a multiple-partition environment, you will need to install the pdksh package.

18.2. Installation notes

The RPM packages supplied with the DB2 install CD contain dependency listings that cannot be satisfied inside a Ubuntu environment, because Ubuntu does not use RPM as a native packaging method. To overcome these dependencies, you need to modify the db2_install script to ignore dependencies and force the installation of DB2 onto your system using alien.

Perform the following steps to modify the db2_install script and install the product:

1. Open the ~/db2/linux/db2_install script in your text editor and modify the following lines

   From:

   ( rpm -ivh ${INSTDEV?}/${pkg?}${RPMEXTN?} 2>&1; \ echo $? > ${TMPRC?} ) | tee -a ${DB2INSTLOG?}

   To:

   ( alien -dic ${INSTDEV?}/${pkg?}${RPMEXTN?} 2>&1; \ echo $? > ${TMPRC?} ) | tee -a ${DB2INSTLOG?}

2. Issue the following command to begin installing DB2:

   sudo ./db2_install

3. The DB2 installer prompts you to enter the keyword of the product you want to install. for example, issuing the db2_install command for the DB2 UDB Express Edition for Linux install displays the following screen:

   Specify one or more of the following keywords, separated by spaces, to install DB2 products. Keyword Product Description DB2.EXP DB2 UDB Express Edition for LINUX Enter "help" to redisplay product names. Enter "quit" to exit. *********************************************************** DB2.EXP

The DB2 installer will now install many RPM packages into the /opt/IBM/db2/V8.1/ directory.

18.3. Post-installation notes

Now that you have installed DB2, you need to create the groups, users, DB2 Administration Server instance, and database instance for your database. The following instructions create users and groups with the default names used in the DB2 documentation (dasadm1, db2inst1, db2fenc1).

1. Create the required groups:

   sudo groupadd -g 999 db2iadm1 sudo groupadd -g 998 db2fadm1 sudo groupadd -g 997 dasadm1

2. Create the required users and assign them to their corresponding groups:

   sudo useradd -u 1004 -g db2iadm1 -m -d /home/db2inst1 db2inst1 sudo useradd -u 1003 -g db2fadm1 -m -d /home/db2fenc1 db2fenc1 sudo useradd -u 1002 -g dasadm1 -m -d /home/dasusr1 dasusr1

3. Create the DB2 Administration Server:

   sudo /opt/IBM/db2/V8.1/instance/dascrt -u dasusr1

   Create the DB2 database instance:

   sudo /opt/IBM/db2/V8.1/instance/db2icrt -a server -u db2fenc1 db2inst1