Make a boot floppy in 3.2

[Tortoise]

Can anyone tell me how to make a floppy in 3.2 that will boot the installed version of Knoppix (I guess it's Debian by that stage?)
During the installation, it offered to make one for me, but failed, and crashed.
Thanks

[Stephen]

mkboot in a console.

[Tortoise]

Thanks, I'll try to do that, it didn't make one at startup because my floppy is an external usb which it doesn't like, I haven't figured out how to mount it yet, but the bios is happy enough booting from it.