[Koha] Koha installation Problem

[Mohammad Joynal Abdin]

Dear All,
Greetings from Mohammad Joynal Abdin
Today I want to share with you all one thing that, Yesterday I tried
to setup koha on Debian 6.0.1. But when I enter the command apt-get
install koha it returns error like below. I added the line deb
http://debian.koha-community.org/koha squeeze main in the
/etc/apt/sources.list. It can be mentioned that apt-get update command
executed successfully and it reports that Reading package lists......
Done. What's wrong? How can I proceed? Please suggest me.

ERROR
root at koha:/home/koha# apt-get install koha
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 koha : Depends: koha-common but it is not going to be installed
        Depends: dbconfig-common but it is not installable
        Depends: mysql-server but it is not installable
E: Broken packages

Thanking you in advance

-- 
*With Warm Regards*

Mohammad Joynal Abdin
MA in ISLM, DU
MCSA, MCSE
Assistant Library Officer
Daffodil International University
Cell: 01811458896  Ext. 152