Hi,
I'm trying to install DB2 V8.2 on
Red Hat Enterprise Linux Client release 5.3 Beta (Tikanga).
The steps that I have followed are.
1. Changed the kernel parameter in sysctl.conf file.
2. Installed on command prompt.
3. Created groups and users.
4. Now when I'm trying to create instance
./db2icrt -a server -u db2fenc1 <user>
the error that I'm facing is

DBI1281E The database manager configuration file could not be
initialized.

Explanation:

An error occurred when attempting to initialize the database
manager configuration file. A DB2 instance could not be created
or migrated.

User Response:

Refer to the log file for problem determination. Resolve the
problem and try the command again. If the problem persists,
please contact IBM Support.


DBI1079I Output is saved in the log file /tmp/db2icrt.log.6980.

Explanation:

All processed and failed operations have been saved into this log
file.

User Response:

Do not modify this file in any way. This file is for IBM
Technical Support reference.

Can anyone please tell me where I'm going wrong.
Thanks in advance.

Does the instance owner have a home directory defined that is owned by that user? It would also help if they had all their profile files in place on the home directory (although not mandatory to create the instance).

So, did you check the contents of /tmp/db2icrt.log.6980, as the error message had suggested?