Booting FreeBSD on BeagleBone Black from microSD by default

[Mike Brown]

When I was looking to do this, I was told on IRC to just rename the MLO file:

mkdir /emmc.root
mount -t msdosfs /dev/mmcsd1s1 /emmc.root
cd /emmc.root && mv MLO MLO.old

Once MLO is renamed, /dev/mmcsd1s2 is then available for whatever you want. I 
use it for swap.

Is there any advantage to using the gpart method instead of renaming MLO?