koha@debian:/etc/apt$ cat sources.list
#

# deb cdrom:[Debian GNU/Linux 6.0.3 _Squeeze_ - Official i386 DVD Binary-1 20111008-13:01]/ squeeze contrib main

deb cdrom:[Debian GNU/Linux 6.0.3 _Squeeze_ - Official i386 DVD Binary-1 20111008-13:01]/ squeeze contrib main

deb http://security.debian.org/ squeeze/updates main contrib
deb-src http://security.debian.org/ squeeze/updates main contrib

# squeeze-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
deb http://ftp.debian.org/debian/ squeeze-updates main contrib
deb-src http://ftp.debian.org/debian/ squeeze-updates main contrib
koha@debian:/etc/apt$


---------------------------
koha@debian:/etc/apt/sources.list.d$ cat koha.list
deb http://debian.koha-community.org/koha squeeze main



----------------
koha@debian:/etc/apt$ sudo apt-get install koha-common
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-common : Depends: libcgi-session-driver-memcached-perl but it is not going to be installed
               Depends: libalgorithm-checkdigits-perl but it is not installable
               Depends: libauthen-cas-client-perl but it is not installable
               Depends: libbiblio-endnotestyle-perl but it is not installable
               Depends: libbusiness-isbn-perl but it is not installable
               epends: libcgi-session-perl but it is not installable
               Depends: libcgi-session-serialize-yaml-perl but it is not installable
               Depends: libclass-factory-util-perl but it is not installable
               Depends: libdata-ical-perl but it is not installable
               Depends: libdate-ical-perl but it is not installable
               Depends: libdbd-sqlite2-perl but it is not installable
               Depends: libemail-date-perl but it is not installable
               Depends: libgd-barcode-perl but it is not installable
               Depends: libgd-gd2-noxpm-perl but it is not installable or
                        libgd-gd2-perl but it is not installable
               Depends: libgraphics-magick-perl but it is not installable
               Depends: libhtml-scrubber-perl but it is not installable
               Depends: libhtml-template-pro-perl but it is not installable
               Depends: libhttp-oai-perl but it is not installable
               Depends: liblingua-stem-perl but it is not installable
               Depends: liblingua-stem-snowball-perl but it is not installable
               Depends: liblocale-currency-format-perl but it is not installable
               Depends: liblocale-po-perl but it is not installable
               Depends: libmarc-charset-perl but it is not installable
               Depends: libmarc-crosswalk-dublincore-perl but it is not installable
               Depends: libmarc-record-perl but it is not installable
               Depends: libmarc-xml-perl but it is not installable
               Depends: libmemoize-memcached-perl but it is not installable
               Depends: libmime-lite-perl but it is not installable
               Depends: libnet-z3950-zoom-perl but it is not installable
               Depends: libnumber-format-perl but it is not installable
               Depends: libpdf-api2-perl but it is not installable
               Depends: libpdf-api2-simple-perl but it is not installable
               Depends: libpdf-reuse-barcode-perl but it is not installable
               Depends: libpdf-reuse-perl but it is not installable
               Depends: libpdf-table-perl but it is not installable
               Depends: libpoe-perl but it is not installable
               Depends: libschedule-at-perl but it is not installable
               Depends: libsms-send-perl but it is not installable
               Depends: libtemplate-perl but it is not installable
               Depends: libtext-csv-encoded-perl but it is not installable
               Depends: libtext-csv-perl but it is not installable
               Depends: libtext-csv-xs-perl but it is not installable
               Depends: libuniversal-require-perl but it is not installable
               Depends: libxml-dumper-perl but it is not installable
               Depends: libxml-libxslt-perl but it is not installable
               Depends: libxml-rss-perl but it is not installable
               Depends: libxml-sax-writer-perl but it is not installable
               Depends: apache2-mpm-itk but it is not going to be installed
               Depends: idzebra-2.0 but it is not installable
               Depends: libjs-yui but it is not installable
               Depends: tinymce2 but it is not installable
               Depends: xmlstarlet but it is not installable
               Depends: yaz but it is not installable
E: Broken packages
koha@debian:/etc/apt$