I installed db2 express 9.5 under ubuntu 8.04. After installation of several packages, it installed well. Only, after installation, it did not automatically start at boot. Setting db2set autostart=yes (by db2inst1 user) did not help. So in the end, I added a /etc/init.d/db2 script: http://www.tldp.org/HOWTO/DB2-HOWTO/ubuntu704.html#AEN794 #!/bin/sh # # Script to start DB2 instances on bootup. # set -e . /lib/lsb/init-functions case "$1" in start) /opt/ibm/db2exc/V9.1/instance/db2istrt ;; stop|restart|reload) ;; esac exit 0 Then I installed bum package, and ran System-Administration-Bootup Manager to activate the db2 script at startup.