Here is the error:
Command to be run: "cd /opt/ibm/db2/V9.1/;/opt/ibm/db2/V9.1/instance/
db2icrt -a server -s wse -u db2fenc1 -p db2c_db2inst1 db2inst1".
ERROR:An error occurred while creating the instance "db2inst1". The
return code
is "1". Create the instance manually using the command "db2icrt".


ERRORBI1135E The primary group db2instgrp of user ID
db2inst1 is invalid.


Explanation:


The primary group name of the instance user ID cannot:


1. be one of "guests", "admins", "users" or "local".


2. start with "sql" or "ibm".


3. start with a numeral or contain characters other than a-z, $,
#, @, or 0-9.


I have fixed,^_^