I haven't had a chance to update the Arch base box in a while so using the Ubuntu one is far more likely to succeed for a new user (I did test that box recently as I traded my ErgoDox EZ to a friend and needed to reprogram it for him).
# You can only have one config.vm.box uncommented at a time
# Comment this and uncomment another if you don't want to use the minimal Arch box
- config.vm.box = "dragon788/arch-ala-elasticdog"
+ #config.vm.box = "dragon788/arch-ala-elasticdog"
# VMware/Virtualbox 64 bit
- # config.vm.box = "phusion/ubuntu-14.04-amd64"
+ config.vm.box = "phusion/ubuntu-14.04-amd64"
#
# VMware/Virtualbox 64 bit
#config.vm.box = "puphpet/centos65-x64"