The solution to your issue is listed in the FAQ: http://www.fop2.com/documentation-faq.php
When I try to run fop2_server it does not do anything at all.
fop2_server requires /tmp directory to allow execution. Some systems mount the /tmp directory with the noexec option for security reasons. In that case you need to create a special temp directory for FOP2 and modify the init script to export an environment variable so it uses that directory. So, you can create a temp directory:
mkdir /usr/local/fop2/temp
And then modify the init script by adding the highlighted line:
case "$1" in
start)
echo -n "Starting Flash Operator Panel 2: "
export PAR_GLOBAL_TMPDIR=/usr/local/fop2/temp
daemon $DAEMON $OPTIONS
