default setup/configuration is broken

[aljosa]

paths are broken after installation, not everything is configured.
what i've expected after installation (apt-get install db2exc) is that default db2 instance w/ related services will be running properly.

root@aljosa-mbair:~# /etc/init.d/db2exc restart
  * Stopping instance db2inst1 ( db2c_db2inst1 ): done.
  * Starting DAS: failed.
Message: -su: db2admin: command not found
  * Instance db2inst1 ( db2c_db2inst1 ): done.

system info:
$ uname -a
Linux aljosa-mbair 3.2.0-30-generic #48-Ubuntu SMP Fri Aug 24 16:52:48 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
$ dpkg -l|grep db2exc
ii db2exc 9.7.5-0lucid0 DB2 Express-C 9.7 Fix Pack 5 for Linux