Some Linux-based bootable CDs rely on ISOLinux or SYSLinux in order to handle the boot process.
This guide will show you how to build a bootable floppy that will use SYSLinux for/from your CD:
- What is the CD using? ISOLinux or SYSLinux?
ISOLinux: Look on CD for a file called isolinux.cfg, found usually in a directory called either boot or isolinux
SYSLinux: Look on CD for a file called syslinux.cfg, found usually in a directory called either boot or syslinux
- The configuration file:
From the directory you identified we need the isolinux.cfg or syslinux.cfg file renamed as syslinux.cfg.
Copy it somewhere and eventually rename it.
- The rest of the files (kernel, the small ramdisk, etc):
We also need all the files in that directory except (if exist): ldlinux.sys, isolinux.bin, boot.cat, boot.catalog
Copy them where you copied the .cfg file.
- Now count how much space do those file take, and download the proper empty bootable-floppy image:
1.44M image or 2.88M image (it's a zip archive).
If your files don't fit on a 2.88MB floppy, you're out of luck; I have no solution for that yet.
- Unzip your floppy-image
Windows: if you use Windows XP you'll be able to open from explorer, otherwise use winrar
Linux: unzip <image.zip>
- Insert all the files in the image you now have, _without_ removing the existing file:
Windows: Use winImage for example
- mkdir floppy_dir
- mount -o loop -t vfat floppy144.img floppy_dir
- copy your files in floppy_dir
- umount floppy_dir
- You're done.
Now that you have a bootable floppy for this CD it is possible to integrate it into another bootable CD.
I also have guide to integrate any CD into Ultimate Boot CD, here.
- The file and directory names might be CASE SENSITIVE ! Pay attention to this if you work under Windows, who doesn't care about case.
- If you find this guide ambiguous or wrong feel free to email me.