Making your own linux boot disk !

You need two things for a Linux bootdisk that does not just boot your Linux installation on a hard disk: The Linux kernel, and a root file system. If you want to do anything with this disk, you need some programs on the root file system. Because the Linux kernel is not that small anymore, it's very unlikely that you can create one from scratch (without a lot of experience) that can do anything.

If you just want to boot the Linux installation on your hard disk, you can write the kernel image to a floppy disk. If e.g. your kernel is /boot/vmlinuz run the following command:
dd if=/boot/vmlinuz of=/dev/fd0

If you really want to learn how to create a (useful) boot disk, you should take a look at some of the floppy disk Linux systems (or small Linux systems in general). Here are some links:

http://bengross.com/smallunix.html
http://www.icewalkers.com/Linux/Software/512350/RIP.html
http://www.linuxlinks.com/Distributions/Floppy/

I've done this myself a number of years ago (http://www.khk.net/lods/). It's fun, and you learn a lot about how things need to be packaged.

Have fun.

or try to get one from www.bootdisk.com

also have a look here https://www.experts-exchange.com/questions/20809768/How-to-make-boot-disk-but-not-in-Linux.html, someone have similar question as yours :-)

Hi guys thanks for the info ! i need to specify something.The goal of my question is i want to learn how to make a floppy that will be able to log to an ftp server and then from there start an installation of let say Redhat... I really want to know all the mecanics under the hood !

thanks again guys

Toxix

Usually you set up a Kickstart server and boot clients off eth0. No floppy needed.