This short tutorial by user  shows us how to increase your disk space in FreeBSD.

I use gpart to manage disk partitions in FreeBSD, because it works, and is much easier than the old bsdlabel shenanigans. Increasing the size of the last partition on a disk is easy:

  • Power down
  • resize disk (e.g. increase virtual machine’s disk allocation)
  • boot into single user mode
gpart recover da0
gpart show -p da0
gpart resize -i 5 da0
gpart show -p da0
growfs /dev/da0p5
  • reboot

Original post: https://gregoryo.wordpress.com/2015/04/30/increase-disk-space-in-freebsd/