Learn to use code tags...
Apparently this is your sources.list:
Code:
# please use local debian mirror, see http://www.debian.org/mirror/list
#
deb http://ftp.de.debian.org/debian squeeze main contrib non-free
deb http://ftp.de.debian.org/debian-security squeeze/updates main contrib non-free
This however tells a very different story:
Code:
oot@sieemaen:~# apt-get update
Hit http://ftp.de.debian.org squeeze Release.gpg
Ign http://ftp.de.debian.org/debian/ squeeze/contrib Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze/main Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze/non-free Translation-en
Hit http://ftp.de.debian.org squeeze/updates Release.gpg
Ign http://ftp.de.debian.org/debian-security/ squeeze/updates/contrib Translatio n-en
Ign http://ftp.de.debian.org/debian-security/ squeeze/updates/main Translation-e n
Ign http://ftp.de.debian.org/debian-security/ squeeze/updates/non-free Translati on-en
Hit http://ftp.de.debian.org squeeze Release
Hit http://ftp.de.debian.org squeeze/updates Release
Hit http://ppa.launchpad.net precise Release.gpg
Ign http://ppa.launchpad.net/webupd8team/java/ubuntu/ precise/main Translation-e n
Hit http://ftp.de.debian.org squeeze/main amd64 Packages
Hit http://ftp.de.debian.org squeeze/contrib amd64 Packages
Hit http://ftp.de.debian.org squeeze/non-free amd64 Packages
Hit http://ftp.de.debian.org squeeze/updates/main amd64 Packages
Hit http://ftp.de.debian.org squeeze/updates/contrib amd64 Packages
Hit http://ftp.de.debian.org squeeze/updates/non-free amd64 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Reading package lists... Done
People are advised
constantly not to mix 'buntu repositories with debian - now you know why with first hand experience.
I suspect you have other .list files in /etc/apt/sources.list.d/ ...
get rid of the ubuntu related PPAs and do the following
Code:
# apt-get clean && apt-get update && apt-get -f install