pfSense CE 2.8.0 (amd64 ISO) is a community edition release of the pfSense firewall/router platform built on FreeBSD for 64-bit x86 systems. It provides routing, NAT, firewall policies, VPN (OpenVPN, IPsec), traffic shaping, DHCP/DNS services, and package extensibility. This deep piece assumes the target ISO is the official pfSense CE 2.8.0 amd64 installer image compressed as .gz.
Notable considerations
The .iso.gz file must be decompressed before writing: pfsensece280releaseamd64isogz high quality
# Decompress on Linux/macOS
gunzip pfSense-CE-2.8.0-RELEASE-amd64.iso.gz