Expanding OpnSense root disk (21.7+)

Expanding root partition on OpnSense VM

  • Expand underlying VM disk
  • Reboot
  • Run below commands to online resize
  • Reboot (Optional?)
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# View the layout
gpart show
# Resolve GPT issue before extending
gpart recover da0
# Make it use all the new space
gpart resize -i 3 da0
# Grow the FS to fill the new partition
growfs /dev/gpt/rootfs