DB2 Manual Installation On Linux

Install

    * Login as root.
    * Create groups:
          o groupadd -g 999 db2iadm1
          o groupadd -g 998 db2fadm1
          o groupadd -g 997 dasadm1 

    * Create users for each group:
          o useradd -u 1004 -g db2iadm1 -m -d /home/db2inst1 db2inst1
          o useradd -u 1003 -g db2fadm1 -m -d /home/db2fenc1 db2fenc1
          o useradd -u 1002 -g dasadm1 -m -d /home/dasusr1 dasusr1 

    * Set password for each users created:
          o passwd db2inst1
          o passwd db2fenc1
          o passwd dasusr1 

    * cd to installation file directory:
          o Example: /tmp/db2/exp/disk1 

    * Run installation script:
          o ./db2_install.sh 

Post Install

    * Login as root.
    * Install license (example):
          o /opt/ibm/db2/V9.1/adm/db2licm –a /tmp/db2/exp/disk1/db2/license/db2exp_uw.lic 

Create the DB2 Administration Server (DAS)

    * Login as root.
    * Create DAS with dasusr1
          o /opt/ibm/db2/V9.1/instance/dascrt -u dasusr1 

    * Login as dasuser1
          o Start the DAS: db2admin start 

    * Optional: to enable autostarting of the DAS upon reboot
          o /opt/ibm/db2/V9.1/instance/dascrt/dasauto –on 

Create DB2 instance

    * Login as root.
    * Create instance with users db2fenc1 and db2inst1:
          o /opt/ibm/db2/V9.1/instance/db2icrt -a server -u db2fenc1 db2inst1 
    * Optional: enable autostarting of the db2inst1 instance
          o /opt/ibm/db2/V9.1/instance/db2iauto –on db2inst1 

Update environment variables

    * Example:
    * Login as db2inst1
    * edit .bash_profile
          o vi /home/db2inst1/.bash_profile
          o insert the following line at the end of the file – “. /home/db2inst1/sqllib/db2profile” 

    * Do the same for dasusr1, using its corresponding directory. 

Database service

    * Login as root:
    * Add new service entry:
          o vi etc/services
          o insert this line “DB2_TMINST 50000/tcp” at the end of the file 

Verification

    * Login as db2inst1
    * List installed DB2 products and features: db2ls
    * Display the default instance: db2 get instance
          o Result: The current database manager instance is: db2inst1 
    * Start the database instance: db2start
          o Result: SQL1063N DB2START processing was successful. 
    * Stop the database instance: db2stop
          o Result: SQL1064N DB2STOP processing was successful.