vagrant@riak-5:/tmp$ sudo dpkg -i riak-1.2.0.deb
(Reading database ... 31870 files and directories currently installed.)
Preparing to replace riak 1.2.0-1 (using riak-1.2.0.deb) ...
Unpacking replacement riak ...
dpkg: dependency problems prevent configuration of riak:
 riak depends on libc6 (>= 2.15); however:
  Version of libc6 on system is 2.11.3-3.
 riak depends on libssl1.0.0 (>= 1.0.0); however:
  Package libssl1.0.0 is not installed.
 riak depends on libtinfo5; however:
  Package libtinfo5 is not installed.
dpkg: error processing riak (--install):
 dependency problems - leaving unconfigured
Processing triggers for man-db ...
Errors were encountered while processing:
 riak
vagrant@riak-5:/tmp$ sudo apt-get upgrade
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:
 riak : Depends: libc6 (>= 2.15) but 2.11.3-3 is installed
        Depends: libssl1.0.0 (>= 1.0.0) but it is not installable
        Depends: libtinfo5 but it is not installable
E: Unmet dependencies. Try using -f.