[Freedos-user] ISOLINUX - ISOHYBRID

[nospam]

I try to run the ISOHYBRID utility on the fdbasecd.iso file while running
Linux. ISOHYBRID returns with the error message: "boot loader does not have
an isolinux.bin hybrid signature".

Already replaced the isolinux.bin file on the fdbasecd.iso with a later
version but the message remains.

Does anyone know what has to be done to get ISOHYBRID to postprocess the
fdbasecd.iso file? For a test I need a bootable FreeDOS version on a hybrid
ISO image.

Georg

[Bernd Blaauw]

Post by nospam
I try to run the ISOHYBRID utility on the fdbasecd.iso file while running

I assume under Linux? Or did you find a Windows/DOS compatible version
(perl script + interpreter packed together in single binary) ?

Post by nospam
Linux. ISOHYBRID returns with the error message: "boot loader does not have
an isolinux.bin hybrid signature".

Get a non-debug build of isolinux.bin (version 4.05 recommended, or
alternatively 3.86 as that still supports disk image mapping).
http://www.kernel.org/pub/linux/utils/boot/syslinux/

The FreeDOS binary is most likely a debug build that I renamed.

Post by nospam
Already replaced the isolinux.bin file on the fdbasecd.iso with a later
version but the message remains.

I'm using the Windows isohybrid.exe binary linked from post #5 at
[ http://chakra-project.org/bbs/viewtopic.php?id=2090 ]

Post by nospam
Does anyone know what has to be done to get ISOHYBRID to postprocess the
fdbasecd.iso file? For a test I need a bootable FreeDOS version on a hybrid
ISO image.

Did you get the isolinux menu working on the non-hybrid image you
created? BIOS -> CD -> isolinux.bin -> isolinux.cfg -> memdisk ->
0x80memc.img

Perhaps Jeremy's bootdisk/CD builder projects are usefull, I noticed
Asus had used it on the motherboard CD on my new machine (instead of
floppy emulation only).

http://www.fdos.org/bootdisks/

if you're still out of luck I might be able to mail you a 1MB isohybrid
ISO file.

Bernd

[nospam]

Hi Bernd,

thank you very much for your message. If you use isolinux-debug.bin for
fdbasecd.iso then that explains why ISOHYBRID will not work.

Yes, I was using Linux since I was not aware that there was an ISOHYBRID
compiled for Windows/DOS. Thank you for the link!

I found the ISO file you sent to me last year and using that as a template
and adding the latest versions of the ISOLINUX files I was able to get a
bootable hybrid CD image working now. Again used Rugxulo's bare_dos as the
included image ;-)

Thanks again.

Georg