I have a CD that's created from an ISO file which I use to install a custom version of Ubuntu via plop linux.
The cd works fine but I'd like to use a bootable USB drive instead. I used the command dd to try and create the bootable USB:
dd if=filename.iso of=/dev/sdb1 bs=4k
Now this does copy the files and make the USB bootable but I get the error "Missing operating system"