How to make an ISO image emulate floppy

[omar]

Does anyone know how to make an ISO image using

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genisoimage

? I'm using Debian GNU/Linux 7.6 Wheezy and I know it's possible to emulate floppy with ISO. I just don't know how? There is option

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-no-emul-boot

and

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-hard-disk-boot

but I need floppy emulation.
Any help please? And thank you in advance!

[Nable]

Google-fu (i.e. ability to use search tools) is a kind of required knowledge. I gave you link to OSDev wiki page about El-Torito, if you look at the page end, you'll find the link to genisoimage wiki page. That page has the ready example.

[Wajideu]

I believe the reason there is a "-no-emul-boot" option is because the default is an emulated disc. There's no special actions you have to take, just write a normal floppy bootloader and assign it as the disc's boot data. Unless you're working with old pc's though, I would suggest using an actual cd boot image. Then you don't have to worry about cramming your bootloader into 510 bytes.