Use smaller install media
MODIFY
freebsd/freebsd-10.4-amd64.json
freebsd/freebsd-10.4-amd64.json
"http_proxy": "{{env `http_proxy`}}",
"https_proxy": "{{env `https_proxy`}}",
"install_path": "freebsd-10/install.sh",
- "iso_checksum": "195a270b4fd2db4f9e3a1451384f2d3bfa699696d110873b62bcf7540524da0d",
+ "iso_checksum": "7ac73b2a899024e1d9e71e55b5c9b9ac13938468206c72c5a1cf23c7e0a715b4",
"iso_checksum_type": "sha256",
- "iso_name": "FreeBSD-10.4-RELEASE-amd64-dvd1.iso",
+ "iso_name": "FreeBSD-10.4-RELEASE-amd64-disc1.iso",
"memory": "1024",
"mirror": "https://download.freebsd.org/ftp",
"mirror_directory": "releases/amd64/amd64/ISO-IMAGES/10.4",

MODIFY
freebsd/freebsd-10.4-i386.json
freebsd/freebsd-10.4-i386.json
"http_proxy": "{{env `http_proxy`}}",
"https_proxy": "{{env `https_proxy`}}",
"install_path": "freebsd-10/install.sh",
- "iso_checksum": "006a0f77b2d5ddfc1491a72b04b7246971ac35adb4da47a766228b36650a56c6",
+ "iso_checksum": "719ea971deb508936953be78ae9963caa9247d3ee437d0941b08fc7df7ce37b0",
"iso_checksum_type": "sha256",
- "iso_name": "FreeBSD-10.4-RELEASE-i386-dvd1.iso",
+ "iso_name": "FreeBSD-10.4-RELEASE-i386-disc1.iso",
"memory": "1024",
"mirror": "https://download.freebsd.org/ftp",
"mirror_directory": "releases/i386/i386/ISO-IMAGES/10.4",

Use smaller install media