[syslinux] Booting a bootable CD-ROM

[Ady]

> isolinux: Starting up, DL = 81
> isolinux: Loading spec packet failed, trying to wing it...
> isolinux: Trying BrokenAwardHack first ...
> isolinux: BAH: Original Int 13 vector F00091E0
> isolinux: BAH: FAILURE
> isolinux: Extremely broken BIOS detected, last attempt with drive = 81
> isolinux: Main image LBA = 00000028
> isolinux: Disk error 01, AX=4228, drive 81
> 
> Boot failed: press a key to retry...
 
This sounds similar to the "Disk error 01, AX=42xx, drive yy" error 
that some users had with ISOLINUX 6.02 (it depended on HW / BIOS). 
IIRC, it was also related to a relatively-high value of LBA for 
isolinux.bin (and perhaps its size).

Perhaps basing your hacks on the code from current git master:

 http://repo.or.cz/syslinux.git 

would be worth a try.

Alternatively, try basing on an older version (e.g. 3.86).

Regards,
Ady.