Problema com apt-get

Seguinte eu fiz o update do meu back|track (4) agora agora vou usar o apt-get aparece isso :
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run `apt-get -f install' to correct these:
The following packages have unmet dependencies:
openvas-client: Depends: openvas-scanner (>= 3.0.1-bt0) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
root@bt:/pentest/scanners/nikto#
ja dei o apt-get -f install e mesmo assim continua o erro oque eu posso fazer?

Tente:

# apt-get update
# apt-get upgrade
# apt-get -f install

você pode tentar remover o pacote openvas-client

apt-get remove openvas-client

apt-get -f install


E depois instalar novamente o pacote juntamente com as dependencias solicitadas

apt-get install openvas-client