I have an old motherboard that won't boot from USB drives so I need a kicker. I have used the plpbtin.iso but that requires user input and the machine will be at a location that I don't want to go every time the power is interrupted or I need to reboot. So using the ideas from https://forum.plop.at/index.php/topic,1258.msg4621.html#msg4621 (https://forum.plop.at/index.php/topic,1258.msg4621.html#msg4621) I opened the ISO in MagicISO and extracted plpbt.bin and modified it with plpcfgbt.exe and inserted it back into the ISO. When I try to boot from that CD it fails with a checksum error. I'm guessing I need to update the ISO's boot image but I haven't found a method of doing that. Any suggestions are welcome.
See here http://www.plop.at/en/bootmanager/iso.html
Thanks! That is so easy I'm not even going to comment about using labels and goto branching. Command line people understand simplicity.