Extract from: /var/log/apt/term.log

...

Log started: 2010-12-14  08:49:36
Selecting previously deselected package db2exc.
(Reading database ... 245417 files and directories currently installed.)
Unpacking db2exc (from .../db2exc_9.7.2-10_i386.deb) ...
 * Checking for previous DB2 installations...
   ...done.
 * 	No DB2 installation(s) found
 * Checking for existing DB2 instance data...
   ...done.
 * 	No DB2 instances found.
Processing triggers for ureadahead ...
ureadahead will be reprofiled on next reboot
Setting up db2exc (9.7.2-10) ...
 * Setting DB2 library path...
   ...done.
 * Registering installation in the DB2 global registry...
   ...done.
 * Creating new group and user for Database Administration Server...
   ...done.
 * Creating Database Administration Server...
   ...done.
 * Creating new group and users for DB2 instances...
   ...done.
 * Creating default instance...
   ...done.
 * Updating DBM configuration for db2inst1...
   ...done.
 * Adding instance information to /etc/services...
 * Creating symbolic links...
   ...done.
 * Installing DB2 Express-C Edition 9.7 license...
   ...done.
'unknown': unknown terminal type.
dpkg: error processing db2exc (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 db2exc
Log ended: 2010-12-14  08:53:05