[syslinux] Booting firmware harddisk image with memdisk fails

[colimit at gmail.com]

>>> Did you try to put a
>>>  regular SATA harddrive, and setting AHCI mode on/off in BIOS (I have it
>>>  "On")? May be memdisk's hijacked INT13h has problems with accessing SSD?
>>
>> I have an SSD and have AHCI on. I will try this evening to see if that is the
>> problem.
>>
>> But if accessing the disk after memdisk is a problem, maybe it could be
>> useful to disable physical disks altogether with an option in memdisk. I
>> don't know how hard it is to do that, but it definitely would be useful.
>
> As Peter suggests, it is not related. I tried today on a friend's T60 with
> exactly the same problem. This system has no AHCI or SSD.
>
> However I do think it is related to disk access since in the early tests
> 2004/2005 freebsd and linux images clearly indicated problems scanning or
> accessing the disk when using memdisk.

Hm.. I tried to boot http://gag.sourceforge.net floppy image with
memdisk, and it boots even when  booting from a USB stick!
However it is not a usual floppy with FAT, looks that since it has
only one application, it does not need any filesystem.
May be Peter can look at its bootloader and see why FreeDOS/PC-DOS fails?