root@poznansquawk:/etc/apt# apt-get -f install 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libartsc0
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  gutsy-wallpapers libuniconf4.3
The following packages will be REMOVED:
  libuniconf4.2
The following NEW packages will be installed:
  gutsy-wallpapers libuniconf4.3
0 upgraded, 2 newly installed, 1 to remove and 245 not upgraded.
768 not fully installed or removed.
Need to get 0B/1478kB of archives.
After unpacking 1360kB of additional disk space will be used.
Do you want to continue [Y/n]? 
(Reading database ... 117030 files and directories currently installed.)
Unpacking gutsy-wallpapers (from .../gutsy-wallpapers_0.17_all.deb) ...
dpkg: error processing /var/cache/apt/archives/gutsy-wallpapers_0.17_all.deb (--unpack):
 trying to overwrite `/usr/share/backgrounds/warty-final-ubuntu.png', which is also in package edgy-wallpapers
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/gutsy-wallpapers_0.17_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@poznansquawk:/etc/apt#