root@172947:~# apt-get -y install gnome
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:
gnome : Depends: gnome-core (= 1:3.4+7+deb7u1) but it is not going to be installed
Depends: cheese (>= 3.4) but it is not going to be installed
Depends: evolution (>= 3.4) but it is not going to be installed
Depends: evolution-plugins (>= 3.4) but it is not going to be installed
Depends: gedit (>= 3.4) but it is not going to be installed
Depends: gnome-color-manager (>= 3.4) but it is not going to be installed
Depends: gnome-documents (>= 0.4) but it is not going to be installed
Depends: gnome-games (>= 1:3.4) but it is not going to be installed
Depends: nautilus-sendto (>= 3.0) but it is not going to be installed
Depends: gnome-orca (>= 3.4) but it is not going to be installed
Depends: rygel-preferences (>= 0.14) but it is not going to be installed
Depends: seahorse (>= 3.4) but it is not going to be installed
Depends: totem (>= 3.0) but it is not going to be installed
Depends: alacarte (>= 0.13.4) but it is not going to be installed
Depends: gimp (>= 2.8) but it is not going to be installed
Depends: gnome-media (>= 3.4) but it is not going to be installed
Depends: gnome-tweak-tool (>= 3.4) but it is not going to be installed
Depends: rhythmbox (>= 2.96) but it is not going to be installed
Depends: shotwell but it is not going to be installed
Depends: sound-juicer (>= 3.4) but it is not going to be installed
Depends: gedit-plugins (>= 3.4) but it is not going to be installed
Depends: gnome-applets (>= 3.4) but it is not going to be installed
Depends: gnome-shell-extensions (>= 3.4) but it is not going to be installed
Depends: rhythmbox-plugins but it is not going to be installed
Depends: rhythmbox-plugin-cdrecorder but it is not going to be installed
Depends: rygel-playbin but it is not going to be installed
Depends: rygel-tracker but it is not going to be installed
Depends: telepathy-gabble but it is not going to be installed
Depends: telepathy-salut but it is not going to be installed
Depends: totem-plugins but it is not going to be installed
Recommends: gdebi but it is not going to be installed
Recommends: nautilus-sendto-empathy but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Здравствуйте!
Ошибку воспроизвели, на debian 8 подобного не обнаружили.
Изучаем вопрос с Debian 7. Ожидайте данных в запросе.
Посмотрим,что они там изучат...