Rescue disk

[Gordon Stewart]

Dear List

Can anyone tell me the commands to create a rescue boot floppy on Fedora Core 4.

When I use the following command:
 
    dd if=/media/cdrom/images/diskboot.img of=/dev/fd0

it tells me 

dd: writing to `/dev/fd0': No space left on device
2881+0 records in
2880+0 records out


reading around I need to issues the command  

/sbin/grub-install /dev/fd0

but this does not install nothing to the disk.

I only have a 8168k disk.

Thanks

Gordon