Enable Symlinks and Set custom memory size in Vagrant 1.2 (VirtualBox)

config.vm.provider "virtualbox" do |my_vm|      
    my_vm.name = "Ingram"
    my_vm.customize ["setextradata", :id, "VBoxInternal2/SharedFoldersEnableSymlinksCreate/vagrant", "1"]
    my_vm.customize ["modifyvm", :id, "--memory", "128"]
end

In the example I had customize my setting in VM in VirtualBox to have the name Ingram and with 128Ram