The '==>' prefix is used by pacstrap, pacman, and mkinitcpio. A new
prefix is needed to better differentiate the output of the script from
the output of the programs mentioned above.
Also adding more output to the different steps helps during troubleshooting.
- virtualbox-guest-modules-arch doesn't exist anymore and the installation
will fail.
- virtualbox-guest-utils was replaced by virtualbox-guest-utils-nox
because Xorg isn't used.
- linux-headers removed because it's not needed by virtualbox-guest-utils
Instead of having mostly duplicate scripts for the entire installation
process, we can split them up into the base installation steps and then
run shell provisioners for anything specific to each of the types after
the machine has rebooted.
This structure will mean less chance of error when making changes to
machines, and will also allow for expansion of the scripts to be run at
the end, such as adding a minimization script to remove history and
clear out space on the drive before compression.
