Note to self:
apt-get install postgresql libpq-dev
sudo su postgres -c psql
ALTER USER postgres WITH PASSWORD 'your password';
\q
sudo passwd -d postgres
sudo su postgres -c passwd
update-alternatives --config ruby
choose 0 for "auto-mode"
gem install pg
msfconsole
db_driver postgresql
db_connect postgres:”postgreSQL_password”@127.0.0.1/metasploit (“metasploit” being the name of the database)
workspace -a