[syslinux] Buggy bios, boot of dos image hangs with syslinux, but not with isolinux

[Zipf Christian]

Geert Stappers wrote:
> Op 06-08-2008 om 08:38 schreef Zipf Christian:
>> Von: H. Peter Anvin
>> Gesendet: Dienstag, 5. August 2008 17:35 Zipf Christian wrote:
>>>> Here is the output:
>>>> Ramdisk at 0xdbef0000, length 0x002d0000 Disk is floppy 0, 2880K
>>>> C/H/S = 80/2/36, EDD off Using raw access to high memory Total
>>>> size needed = 2454 bytes, allocating 3K Old dos memory at 0x9d800
>>>> (map says 0x9d800), loading at 0x9cc00
>>>> 1588: 0xffff  15E801: 0x3c00 0x7cbe
>>>> INT13 08: Success, count = 0, BPT = 0000:0000
>>>> old: int13 = e320aaef int15 = e3200fab
>>>> new: int13 = 9cc0000a int15 = 9cc0037e Loading boot sector...
>>>> booting... Starting MS-DOS
>>>> 
>>>> After that the computer completely freezes, and has to be powered
>>>> down. 
>>>> 
>>>> Does anybody know of a way around this?
>>> 
>>> Could you try 3.71?  This looks like it may be one of the machines
>>> which is helped by the new code.
>> 
>> I tried Version 3.71, 3.62, 3.55. Unfortunately it is the same
>> behavior on all of them. But it is only memdisk that is affected by
>> this. If I boot a mini linux distro like DSL or SLAX this works just
>> fine from the usb stick. But than again the memdisk code works if
>> booted from a cd with isolinux. Mighty strange.
> 
> That raised to me the question: How big is MS-DOS image that is used?
> I think some size limit is reached ...
> 
> 
> Cheers
> Geert Stappers
> 
> 
> P.S.
> Christian,
> 
> Please consider http://home.in.tum.de/~jain/software/outlook-quotefix/
> 
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The image in question is 2880K. But it does not matter how big it is. I
tried a couple of standard 1440K and they do not work as well, neither
do they work if gzip compressed. But the same images will work from the
cd.

Christian
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