#!/bin/sh

pciconf -l | grep -q "chip=0x....1aed" 
if [ $? = 0 ]; then # Fusion-I/O card has been found
echo "TrueNAS 11 does not support Fusion-I/O cards" 1>&2
exit 1
else
	numeric_version=`echo ${CURRENT_VERSION} | cut -d '-' -f2`;
	OIFS=${IFS}
	IFS='.' read -r major_version minor_version sub_version<<-_EOF_
	$numeric_version
	_EOF_
	IFS=${OIFS}
	# Thus FreeNAS-9.10.2-U1
	# will have major_version=9, minor_version=10, and sub_version=2-U1
	case "${major_version}.${minor_version}"
	in
		9.10*) sub_version=`echo ${sub_version} | cut -d '-' -f1`;
		case $sub_version
		in
			(*[!0-9]*|'') echo "Cannot upgrade from ${CURRENT_VERSION} to FreeNAS 11" 1>&2 ; exit 1;;
			(*) if [ ${sub_version} -lt 2 ]; then
					echo "Cannot upgrade from ${CURRENT_VERSION} to FreeNAS 11" 1>&2 ; exit 1;
				fi;;
		esac
		;;
	esac
	exit 0
fi