root@CMLSVR01:/# sudo apt-get install zentyal
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:
 usermin : Depends: libnet-ssleay-perl but it is not going to be installed
           Depends: libauthen-pam-perl but it is not going to be installed
           Depends: libio-pty-perl but it is not going to be installed
           Depends: apt-show-versions but it is not going to be installed
 zentyal : Depends: zentyal-core but it is not going to be installed
           Depends: zentyal-software but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).